DWIKI - User contributions [en]

User:JYDawg

2007-06-29T10:21:56Z

JYDawg:

{| cellpadding="2" cellspacing="1" class="wikitable" style="width:400px;text-align:left"
|-
! style="background:silver" | Name
| John
|-
! style="background:silver" | Homepage
| [http://www.biomechs.nl/ http://www.biomechs.nl/]
|}

User:JYDawg

2007-06-29T10:21:40Z

JYDawg:

Perl nslookup

2007-06-29T10:10:14Z

JYDawg:

{{Snippet_desc|name=nslookup|description=like the command, returns the ip of a hostname (if any) or undef|lang=perl}}
<enscript lang=perl>
sub nslookup {
my $name = shift;
if( ! $name ) {
print STDERR "nslookup: no argument given\n";
return undef;
}
my @addresses;
eval { @addresses = gethostbyname($name) };
if( $@ ) {
print STDERR "nslookup: failed to resolve $name -> $!\n";
return undef;
}
@addresses = map { inet_ntoa($_) } @addresses[4 .. $#addresses];
return $addresses[0];
}
</enscript>

Template:Snippet desc

2007-06-29T10:08:45Z

JYDawg:

{| cellpadding="2" cellspacing="1" class="wikitable" style="width:400px;text-align:left"
|-
! style="background:silver" | Name
| {{{name}}}
|-
! style="background:silver" | Description
| {{{description}}}
|-
! style="background:silver" | Language
| {{{lang}}}
|}

Perl nslookup

2007-06-29T10:07:45Z

JYDawg:

<enscript lang=perl>
sub nslookup {
my $name = shift;
if( ! $name ) {
print STDERR "nslookup: no argument given\n";
return undef;
}
my @addresses;
eval { @addresses = gethostbyname($name) };
if( $@ ) {
print STDERR "nslookup: failed to resolve $name -> $!\n";
return undef;
}
@addresses = map { inet_ntoa($_) } @addresses[4 .. $#addresses];
return $addresses[0];
}
</enscript>

Perl

2007-06-29T10:07:16Z

JYDawg: /* [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Useful links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= useful modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==
Persistence for Perl data structures. Save's a lot of nitpicking with reading and writting files that's don't need to be accessed by anything else then a perlscript e.g. temporary data for CGI's and daemons.

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
A very comprehensive way to work with [[LDAP|Lightweight Directory Access Protocol]]

== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
Perl interface to the UNIX syslog(3) calls. Why bother writting and maintaining logfiles when someones else can do it?

== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==
Very easy way to generate excelsheets for e.g. reporting.

== Snippets ==
[[perl nslookup]]

[[Category:scripting]]

Editors

2007-06-29T10:05:22Z

JYDawg:

* [[vim]]
* [[perl]] not an editor I know

User:JYDawg

2007-06-29T10:01:29Z

JYDawg:

Teh test

<enscript lang=perl>
#!/usr/bin/perl

print "Hello world";
$c = $a + $b;
</enscript>

User:JYDawg

2007-06-29T10:00:45Z

JYDawg:

Teh test

<enscript lang=sh>cat file | tee lala</enscript>

Main Page

2007-06-29T09:42:36Z

JYDawg:

* [[Network]]
* [[Distributions| Linux Distributions]]
* [[FreeBSD]]
* [[Software]]
* [[Programming]]
* [[System administration]]

----

* [[Notes]]
* [[Mediawiki]]

----
{{:Contact}}

Contact

2007-06-29T09:42:13Z

JYDawg:

{| align=right border=0 cellspacing="1"
| Den Haan IT Services
| http://www.dhits.nl/
|}

Cfengine

2007-04-19T08:18:12Z

JYDawg:

From the [http://www.cfengine.org/ site]:
<blockquote> Cfengine, or the [http://www.cfengine.org/cfdetails.html configuration engine] is an [http://www.cfengine.org/daystrom.html autonomous agent] and a middle to high level policy language and agent for building expert systems to administrate and configure large computer networks. Cfengine is designed to be a part of a computer immune system[http://www.iu.hio.no/~mark/research/immune]. It is ideal for cluster management and has been adopted for use all over the world in small and huge organizations
alike.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.cfengine.org/ http://www.cfengine.org/] || CFengine homepage
|-
| [http://sial.org/howto/cfengine/ http://sial.org/howto/cfengine/] || A cfengine howto
|-
| [http://cfwiki.org/cfwiki/index.php/Main_Page http://cfwiki.org/cfwiki/index.php/Main_Page] || CFengine Wiki
|}

= cfengine commandline tips =

== cfagent use ==

Run an '''update''' of the configuration files '''now'''

cfagent -Bqv

Run cfagent now

cfagent -Kqv

Show what classes are active

cfagent -pv

== configfile maintenance ==

Create a list of directory entries from a given folder
find /opt/ -type d -printf "%p o=%u g=%g mode=%m\n"

SSL

2007-02-14T16:13:13Z

JYDawg: /* OpenSSL */

== Secure Socket Layer ==

From the wikipedia:
<blockquote>Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols which provide secure communications on the Internet for such things as web browsing, e-mail, Internet faxing, and other data transfers. There are slight differences between SSL 3.0 and TLS 1.0, but the protocol remains substantially the same. The term "TLS" as used here applies to both protocols unless clarified by context.</blockquote>

== OpenSSL ==
[http://gagravarr.org/writing/openssl-certs/index.shtml http://gagravarr.org/writing/openssl-certs/index.shtml]

SSL

2007-02-14T16:13:05Z

JYDawg:

SSL

2007-02-14T15:42:25Z

JYDawg:

TLS

2007-02-14T15:41:33Z

JYDawg:

#REDIRECT [[SSL]]

Network

2007-02-14T15:41:20Z

JYDawg: /* Software and services */

__FORCETOC__
==Routing en networking==
*[[Iptables]]
*[[Traffic control]]
*[[Cisco]]
*[[Firewalls]]
*[[Network load balancing]]
*[[Bluetooth]]

==Software and services==
*[[Apache]]
*[[VoIP]] (internet telephony)
*[[Mail]]
*[[LDAP]]
*[[Samba]]
*[[Network traffic monitoring]]
*[[TLS]]/[[SSL]]

==Routers==
*[[Speedtouch 510]]

==More==
*[[Web development]]
*[[Spam]]

SSL

2007-02-14T15:40:48Z

JYDawg:

Secure Socket Layer

Network

2007-02-14T15:39:06Z

JYDawg: /* Software and services */

__FORCETOC__
==Routing en networking==
*[[Iptables]]
*[[Traffic control]]
*[[Cisco]]
*[[Firewalls]]
*[[Network load balancing]]
*[[Bluetooth]]

==Software and services==
*[[Apache]]
*[[VoIP]] (internet telephony)
*[[Mail]]
*[[LDAP]]
*[[Samba]]
*[[Network traffic monitoring]]
*[[SSL]]

==Routers==
*[[Speedtouch 510]]

==More==
*[[Web development]]
*[[Spam]]

Rpm

2007-02-10T00:13:17Z

JYDawg:

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.rpm.org/ rpm.org] || The RPM Homepage
|-
| [http://www.rpm.org/max-rpm/ http://www.rpm.org/max-rpm/] || Maximum RPM -- Taking the Red Hat Package Manager to the Limit
|}
= command line tips =
get the total size used by rpm packages:
rpm -qa --queryformat "%{SIZE}\n" | awk '{arg += $1} END{ printf "%d Mb\n", arg / 1048576 }'

verify all the installed packages:
rpm -Va

what package does (e.g.) the '''nslookup''' command belong to?
rpm -qf `which nslookup`

== building tips ==

When you want to build rpm's make sure you '''~/.rpmmacros''' file is more or less sane:

'''Example'''
%packager J Doe <johndoe@example.tv>
%vendor HomeMade
%_topdir /home/jdoe/rpmbuild
%_tmppath /home/jdoe/rpmbuild/tmp
%debug_package %{nil}

And the correct directories have to exist:

${HOME}/rpmbuild/
${HOME}/rpmbuild/RPMS
${HOME}/rpmbuild/RPMS/i686
${HOME}/rpmbuild/RPMS/i586
${HOME}/rpmbuild/RPMS/athlon
${HOME}/rpmbuild/RPMS/i486
${HOME}/rpmbuild/RPMS/i386
${HOME}/rpmbuild/RPMS/noarch
${HOME}/rpmbuild/tmp
${HOME}/rpmbuild/BUILD
${HOME}/rpmbuild/SPECS
${HOME}/rpmbuild/SRPMS
${HOME}/rpmbuild/SOURCES

[[Category:rpm]]

Rpm

2007-02-10T00:07:13Z

JYDawg:

Rpm

2007-02-10T00:05:48Z

JYDawg:

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.rpm.org/ rpm.org] || The RPM Homepage
|}
= command line tips =
get the total size used by rpm packages:
rpm -qa --queryformat "%{SIZE}\n" | awk '{arg += $1} END{ printf "%d Mb\n", arg / 1048576 }'

verify all the installed packages:
rpm -Va

what package does (e.g.) the '''nslookup''' command belong to?
rpm -qf `which nslookup`

[[Category:rpm]]

Apache

2007-02-10T00:00:28Z

JYDawg:

From the [http://httpd.apache.org/ apache homepage]:
<blockquote>The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows NT. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards.</blockquote>
= Links =
{| style="width:600px;" border="0"
| colspan="2" | '''Documentation'''
|-
| [http://httpd.apache.org/ http://httpd.apache.org/] || Apache homepage
|-
| [http://httpd.apache.org/docs/2.2/ http://httpd.apache.org/docs/2.2/] || 2.2 Reference
|-
| [http://httpd.apache.org/docs/2.0/ http://httpd.apache.org/docs/2.0/] || 2.0 Reference
|-
| [http://httpd.apache.org/docs/1.3/ http://httpd.apache.org/docs/1.3/] || 1.3 Reference
|-
| colspan="2" | '''Articles'''
|-
| [http://www.onlamp.com/pub/a/apache/2003/07/24/vhosts.html vhosts explained]
| "Simplify Your Life with Apache Virtual Hosts" Russell Dyer 07/24/2003
|-
| colspan="2" | '''Tools'''
|-
| [http://awstats.sourceforge.net/ http://awstats.sourceforge.net/] || Apache log analyzer
|}

= Application & modules =
== [http://awstats.sourceforge.net/ AWStats] Notes ==
* Don't use the CGI to present the data unless it is protected. Best use '''awstats_buildstaticpages.pl''' to build the static pages and present those. Save resources and is more secure.

= Related Items =
== Web-based Single Sign-On ==
=== Applications ===
* [http://www.umich.edu/~umweb/software/cosign/ http://www.umich.edu/~umweb/software/cosign/] CoSign
* [http://a-select.surfnet.nl/ http://a-select.surfnet.nl/] A-Select
=== Comparisons ===
* [http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf]
* [http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf]

Apache

2007-02-09T23:58:32Z

JYDawg: /* Web-based Single Sign-On */

== links ==
{| style="width:600px;" border="0"
| colspan="2" | '''Documentation'''
|-
| [http://httpd.apache.org/ http://httpd.apache.org/] || Apache homepage
|-
| [http://httpd.apache.org/docs/2.2/ http://httpd.apache.org/docs/2.2/] || 2.2 Reference
|-
| [http://httpd.apache.org/docs/2.0/ http://httpd.apache.org/docs/2.0/] || 2.0 Reference
|-
| [http://httpd.apache.org/docs/1.3/ http://httpd.apache.org/docs/1.3/] || 1.3 Reference
|-
| colspan="2" | '''Articles'''
|-
| [http://www.onlamp.com/pub/a/apache/2003/07/24/vhosts.html vhosts explained]
| "Simplify Your Life with Apache Virtual Hosts" Russell Dyer 07/24/2003
|-
| colspan="2" | '''Tools'''
|-
| [http://awstats.sourceforge.net/ http://awstats.sourceforge.net/] || Apache log analyzer
|}

= Application & modules =
== [http://awstats.sourceforge.net/ AWStats] Notes ==
* Don't use the CGI to present the data unless it is protected. Best use '''awstats_buildstaticpages.pl''' to build the static pages and present those. Save resources and is more secure.

= Related Items =
== Web-based Single Sign-On ==
=== Applications ===
* [http://www.umich.edu/~umweb/software/cosign/ http://www.umich.edu/~umweb/software/cosign/] CoSign
* [http://a-select.surfnet.nl/ http://a-select.surfnet.nl/] A-Select
=== Comparisons ===
* [http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf]
* [http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf]

Apache

2007-02-09T23:57:44Z

JYDawg: /* [http://awstats.sourceforge.net/ AWStats] Notes */

== links ==
{| style="width:600px;" border="0"
| colspan="2" | '''Documentation'''
|-
| [http://httpd.apache.org/ http://httpd.apache.org/] || Apache homepage
|-
| [http://httpd.apache.org/docs/2.2/ http://httpd.apache.org/docs/2.2/] || 2.2 Reference
|-
| [http://httpd.apache.org/docs/2.0/ http://httpd.apache.org/docs/2.0/] || 2.0 Reference
|-
| [http://httpd.apache.org/docs/1.3/ http://httpd.apache.org/docs/1.3/] || 1.3 Reference
|-
| colspan="2" | '''Articles'''
|-
| [http://www.onlamp.com/pub/a/apache/2003/07/24/vhosts.html vhosts explained]
| "Simplify Your Life with Apache Virtual Hosts" Russell Dyer 07/24/2003
|-
| colspan="2" | '''Tools'''
|-
| [http://awstats.sourceforge.net/ http://awstats.sourceforge.net/] || Apache log analyzer
|}

= Application & modules =
== [http://awstats.sourceforge.net/ AWStats] Notes ==
* Don't use the CGI to present the data unless it is protected. Best use '''awstats_buildstaticpages.pl''' to build the static pages and present those. Save resources and is more secure.

== Web-based Single Sign-On ==
=== Applications ===
* [http://www.umich.edu/~umweb/software/cosign/ http://www.umich.edu/~umweb/software/cosign/] CoSign
* [http://a-select.surfnet.nl/ http://a-select.surfnet.nl/] A-Select
=== Comparisons ===

* [http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf http://www.jisc.ac.uk/uploaded_documents/CMSS-Gilmore.pdf]
* [http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf http://www.umich.edu/~umweb/downloads/WebSSOImplementationComparision.pdf]

Subversion

2007-02-09T23:40:20Z

JYDawg:

From the subversion book:
<blockquote>Subversion is a free/open-source version control system. That is, Subversion manages files and directories, and the changes made to them, over time. This allows you to recover older versions of your data, or examine the history of how your data changed. In this regard, many people think of a version control system as a sort of "time machine".
 
Subversion can operate across networks, which allows it to be used by people on different computers. At some level, the ability for various people to modify and manage the same set of data from their respective locations fosters collaboration. Progress can occur more quickly without a single conduit through which all modifications must occur. And because the work is versioned, you need not fear that quality is the trade-off for losing that conduitâ€”if some incorrect change is made to the data, just undo that change.
 
Some version control systems are also software configuration management (SCM) systems. These systems are specifically tailored to manage trees of source code, and have many features that are specific to software developmentâ€”such as natively understanding programming languages, or supplying tools for building software. Subversion, however, is not one of these systems. It is a general system that can be used to manage any collection of files. For you, those files might be source codeâ€”for others, anything from grocery shopping lists to digital video mixdowns and beyond.
</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://subversion.tigris.org/ http://subversion.tigris.org/] || Homepage
|-
| [http://svnbook.red-bean.com/ http://svnbook.red-bean.com/] || the subversion book
|-
| colspan="2" | '''Articles'''
|-
| [http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html] || Setting up a subversion server
|}

Subversion

2007-02-09T23:38:54Z

JYDawg:

From the subversion book:
<blockquote>Subversion is a free/open-source version control system. That is, Subversion manages files and directories, and the changes made to them, over time. This allows you to recover older versions of your data, or examine the history of how your data changed. In this regard, many people think of a version control system as a sort of "time machine".
 
Subversion can operate across networks, which allows it to be used by people on different computers. At some level, the ability for various people to modify and manage the same set of data from their respective locations fosters collaboration. Progress can occur more quickly without a single conduit through which all modifications must occur. And because the work is versioned, you need not fear that quality is the trade-off for losing that conduitâ€”if some incorrect change is made to the data, just undo that change.
 
Some version control systems are also software configuration management (SCM) systems. These systems are specifically tailored to manage trees of source code, and have many features that are specific to software developmentâ€”such as natively understanding programming languages, or supplying tools for building software. Subversion, however, is not one of these systems. It is a general system that can be used to manage any collection of files. For you, those files might be source codeâ€”for others, anything from grocery shopping lists to digital video mixdowns and beyond.
</blockquote>

----

{|
|-
| [http://subversion.tigris.org/ http://subversion.tigris.org/] || Homepage
|-
| [http://svnbook.red-bean.com/ http://svnbook.red-bean.com/] || the subversion book
|-
| [http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html] || Setting up a subversion server
|}

Subversion

2007-02-09T23:38:13Z

JYDawg:

From the subversion book:
<blockquote>Subversion is a free/open-source version control system. That is, Subversion manages files and directories, and the changes made to them, over time. This allows you to recover older versions of your data, or examine the history of how your data changed. In this regard, many people think of a version control system as a sort of "time machine".
 
Subversion can operate across networks, which allows it to be used by people on different computers. At some level, the ability for various people to modify and manage the same set of data from their respective locations fosters collaboration. Progress can occur more quickly without a single conduit through which all modifications must occur. And because the work is versioned, you need not fear that quality is the trade-off for losing that conduitâ€”if some incorrect change is made to the data, just undo that change.
 
Some version control systems are also software configuration management (SCM) systems. These systems are specifically tailored to manage trees of source code, and have many features that are specific to software developmentâ€”such as natively understanding programming languages, or supplying tools for building software. Subversion, however, is not one of these systems. It is a general system that can be used to manage any collection of files. For you, those files might be source codeâ€”for others, anything from grocery shopping lists to digital video mixdowns and beyond.
</blockquote>

{|
|-
| [http://subversion.tigris.org/ http://subversion.tigris.org/] || Homepage
|-
| [http://svnbook.red-bean.com/ http://svnbook.red-bean.com/] || the subversion book
|-
| [http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html] || Setting up a subversion server
|}

Subversion

2007-02-09T23:35:21Z

JYDawg:

{|
|-
| [http://subversion.tigris.org/ http://subversion.tigris.org/] || Homepage
|-
| [http://svnbook.red-bean.com/ http://svnbook.red-bean.com/] || the subversion book
|-
| [http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html http://tortoisesvn.net/docs/release/TortoiseSVN_en/ch03.html] || Setting up a subversion server
|}

Rcs

2007-02-09T23:32:06Z

JYDawg: /* [http://www.gnu.org/software/rcs/rcs.html Revision Control System] */

= [http://www.gnu.org/software/rcs/rcs.html Revision Control System] =
From the GNU site:
<blockquote>The Revision Control System (RCS) manages multiple revisions of files. RCS automates the storing, retrieval, logging, identification, and merging of revisions. RCS is useful for text that is revised frequently, including source code, programs, documentation, graphics, papers, and form letters.</blockquote>

----

Currently RCS isn't used much anymore for "regular" revision control but comes in quite handy when you need to keep versions but have no need for an extensive external repository.

Rcs

2007-02-09T23:31:30Z

JYDawg: /* [http://www.gnu.org/software/rcs/rcs.html Revision Control System] */

= [http://www.gnu.org/software/rcs/rcs.html Revision Control System] =
From the GNU site:
<blockquote>The Revision Control System (RCS) manages multiple revisions of files. RCS automates the storing, retrieval, logging, identification, and merging of revisions. RCS is useful for text that is revised frequently, including source code, programs, documentation, graphics, papers, and form letters.</blockquote>

----

currently RCS is used much for regular revision control but comes in quite handy when you need to keep versions but have no need for an extensive external repository.

Rcs

2007-02-09T23:31:20Z

JYDawg:

= [http://www.gnu.org/software/rcs/rcs.html Revision Control System] =
From the GNU site:
<blockquote>The Revision Control System (RCS) manages multiple revisions of files. RCS automates the storing, retrieval, logging, identification, and merging of revisions. RCS is useful for text that is revised frequently, including source code, programs, documentation, graphics, papers, and form letters.</blockquote>

currently RCS is used much for regular revision control but comes in quite handy when you need to keep versions but have no need for an extensive external repository.

Perl

2007-02-09T23:19:51Z

JYDawg: /* [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= usefull modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==
Persistence for Perl data structures. Save's a lot of nitpicking with reading and writting files that's don't need to be accessed by anything else then a perlscript e.g. temporary data for CGI's and daemons.

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
A very comprehensive way to work with [[LDAP|Lightweight Directory Access Protocol]]

== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
Perl interface to the UNIX syslog(3) calls. Why bother writting and maintaining logfiles when someones else can do it?

== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==
Very easy way to generate excelsheets for e.g. reporting.

[[Category:scripting]]

Perl

2007-02-09T23:19:05Z

JYDawg: /* [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= usefull modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==
Persistence for Perl data structures. Save's a lot of nitpicking with reading and writting files that's don't need to be accessed by anything else then a perlscript e.g. temporary data for CGI's and daemons.

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
A very comprehensive way to work with [[LDAP|Lightweight Directory Access Protocol]]

== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
Perl interface to the UNIX syslog(3) calls. Why bother writting and maintaining logfiles when someones else can do it?

== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==

[[Category:scripting]]

Perl

2007-02-09T23:17:10Z

JYDawg: /* [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= usefull modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==
Persistence for Perl data structures. Save's a lot of nitpicking with reading and writting files that's don't need to be accessed by anything else then a perlscript e.g. temporary data for CGI's and daemons.

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
A very comprehensive way to work with [[LDAP|Lightweight Directory Access Protocol]]

== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==

[[Category:scripting]]

Perl

2007-02-09T23:16:06Z

JYDawg: /* [http://search.cpan.org/perldoc/Storable Storable] */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= usefull modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==
Persistence for Perl data structures. Save's a lot of nitpicking with reading and writting files that's don't need to be accessed by anything else then a perlscript e.g. temporary data for CGI's and daemons.

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==

[[Category:scripting]]

Perl

2007-02-09T23:13:55Z

JYDawg: /* usefull modules */

'''Practical Extraction and Report Language'''
-or- ''Pathologically Eclectic Rubbish Lister''

From the Wikipedia:
<blockquote>Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.
 
Structurally, Perl is based on the brace-delimited block style of AWK and C, and was widely adopted for its strengths in string processing, and lack of the arbitrary limitations of many scripting languages at the time.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://search.cpan.org/ http://search.cpan.org/] || Search the '''Comprehensive Perl Archive Network'''
|}

= command line tips =

Check the validity of your scripts:
perl -c <scriptname>

With additional library paths:
perl -I ../somelib -c <scriptname>

Alter a file by changing all '''FOO''''s by '''BAR''''s:
perl -pi -e 's!FOO!BAR!' <filename>

= usefull modules =
Some modules I find handy
== [http://search.cpan.org/perldoc/Data::Dumper Data::Dumper] ==
let's you dump data structions in a readable format.

== [http://www.template-toolkit.org/ Template] ==
Andy Wardley's very workable templating engine.

== [http://search.cpan.org/perldoc/Storable Storable] ==

== [http://search.cpan.org/perldoc/Net::LDAP Net::LDAP] ==
== [http://search.cpan.org/perldoc/Sys::Syslog Sys::Syslog] ==
== [http://search.cpan.org/perldoc/Spreadsheet::WriteExcel Spreadsheet::WriteExcel] ==

[[Category:scripting]]

Perl

2007-02-09T23:08:45Z

JYDawg: /* [search.cpan.org/perldoc/Data::Dumper Data::Dumper] */

Perl

2007-02-09T23:08:25Z

JYDawg: /* command line tips */

Perl

2007-02-09T23:03:41Z

JYDawg:

Cfengine

2007-02-09T22:52:40Z

JYDawg:

From the [http://www.cfengine.org/ site]:
<blockquote> Cfengine, or the [http://www.cfengine.org/cfdetails.html configuration engine] is an [http://www.cfengine.org/daystrom.html autonomous agent] and a middle to high level policy language and agent for building expert systems to administrate and configure large computer networks. Cfengine is designed to be a part of a computer immune system[http://www.iu.hio.no/~mark/research/immune]. It is ideal for cluster management and has been adopted for use all over the world in small and huge organizations
alike.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.cfengine.org/ http://www.cfengine.org/] || CFengine homepage
|-
| [http://sial.org/howto/cfengine/ http://sial.org/howto/cfengine/] || A cfengine howto
|}

= cfengine commandline tips =

== cfagent use ==

Run an '''update''' of the configuration files '''now'''

cfagent -Bqv

Run cfagent now

cfagent -Kqv

Show what classes are active

cfagent -pv

== configfile maintenance ==

Create a list of directory entries from a given folder
find /opt/ -type d -printf "%p o=%u g=%g mode=%m\n"

Cfengine

2007-02-09T22:51:56Z

JYDawg:

From the [http://www.cfengine.org/ site]:
<blockquote> Cfengine, or the [http://www.cfengine.org/cfdetails.html configuration engine] is an [http://www.cfengine.org/daystrom.html autonomous agent] and a middle to high level policy language and agent for building expert systems to administrate and configure large computer networks. Cfengine is designed to be a part of a computer immune system[http://www.iu.hio.no/~mark/research/immune]. It is ideal for cluster management and has been adopted for use all over the world in small and huge organizations
alike.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.cfengine.org/ http://www.cfengine.org/] || CFengine homepage
|-
| [http://sial.org/howto/cfengine/ http://sial.org/howto/cfengine/] || A cfengine howto
|}

= Hints and tips =

== cfengine commandline ==

=== cfagent use ===

Run an '''update''' of the configuration files '''now'''

cfagent -Bqv

Run cfagent now

cfagent -Kqv

Show what classes are active

cfagent -pv

=== configfile maintenance ===

Create a list of directory entries from a given folder
find /opt/ -type d -printf "%p o=%u g=%g mode=%m\n"

Cfengine

2007-02-09T22:50:12Z

JYDawg:

From the [http://www.cfengine.org/ site]:
<blockquote> Cfengine, or the [http://www.cfengine.org/cfdetails.html configuration engine] is an [http://www.cfengine.org/daystrom.html autonomous agent] and a middle to high level policy language and agent for building expert systems to administrate and configure large computer networks. Cfengine is designed to be a part of a computer immune system[http://www.iu.hio.no/~mark/research/immune]. It is ideal for cluster management and has been adopted for use all over the world in small and huge organizations
alike.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.cfengine.org/ http://www.cfengine.org/] || CFengine homepage
|-
| [http://sial.org/howto/cfengine/ http://sial.org/howto/cfengine/] || A cfengine howto
|}

== cfengine commandline tips ==

=== cfagent use ===

Run an '''update''' of the configuration files '''now'''

cfagent -Bqv

Run cfagent now

cfagent -Kqv

Show what classes are active

cfagent -pv

=== configfile maintenance ===

Create a list of directory entries from a given folder
find /opt/ -type d -printf "%p o=%u g=%g mode=%m\n"

Cfengine

2007-02-09T22:49:22Z

JYDawg:

From the [http://www.cfengine.org/ site]:
<blockquote> Cfengine, or the [http://www.cfengine.org/cfdetails.html configuration engine] is an [http://www.cfengine.org/daystrom.html autonomous agent] and a middle to high level policy language and agent for building expert systems to administrate and configure large computer networks. Cfengine is designed to be a part of a computer immune system[http://www.iu.hio.no/~mark/research/immune]. It is ideal for cluster management and has been adopted for use all over the world in small and huge organizations
alike.</blockquote>

----

{| style="width:600px;" border="0"
| colspan="2" | '''Usefull links'''
|-
| [http://www.cfengine.org/ http://www.cfengine.org/] || CFengine homepage
|-
| [http://sial.org/howto/cfengine/ http://sial.org/howto/cfengine/] || A cfengine howto
|}

----

== cfengine commandline tips ==

=== cfagent use ===

Run an '''update''' of the configuration files '''now'''

cfagent -Bqv

Run cfagent now

cfagent -Kqv

Show what classes are active

cfagent -pv
=== configfile maintenance ===

Create a list of directory entries from a given folder
find /opt/ -type d -printf "%p o=%u g=%g mode=%m\n"

===

Main Page

2007-02-09T22:43:59Z

JYDawg:

= Den Haan IT Services Wiki =

* [[Network]]
* [[Distributions]]
* [[Software]]
* [[Programming]]
* [[System administration]]

----

* [[Notes]]
* [[Mediawiki]]

----

{| align=right border=0 cellspacing="1"
| Den Haan IT Services
| http://www.dhits.nl/
|-
| Tony's homepage
| http://www.tuxick.net/
|}

Main Page

2007-02-09T22:42:15Z

JYDawg:

= Den Haan IT Services Wiki =

* [[Network]]
* [[Distributions]]
* [[Software]]
* [[Programming]]
* [[System administration]]

* [[Notes]]
* [[Mediawiki]]

----

{| align=right border=0 cellspacing="1"
| Den Haan IT Services
| http://www.dhits.nl/
|-
| Tony's homepage
| http://www.tuxick.net/
|}

Distributions

2007-02-09T22:39:20Z

JYDawg:

* [[Linux]]
** [[Gentoo]]
** [[RedHat]]
** [[Slackware]]
** [[Debian]]

Distributions

2007-02-09T22:37:43Z

JYDawg:

*[[Linux]]

Main Page

2007-02-09T22:37:37Z

JYDawg: /* DHITS wiki */

= Den Haan IT Services Wiki =

* [[Network]]
* [[Distributions]]
* [[Software]]
*[[Mediawiki]]
*[[Programming]]
*[[System administration]]

*[[Notes]]

----

{| align=right border=0 cellspacing="1"
| Den Haan IT Services
| http://www.dhits.nl/
|-
| Tony's homepage
| http://www.tuxick.net/
|}

Notes

2007-02-09T22:29:20Z

JYDawg:

*[[DVD]]