FreeBSD Jails

From DWIKI

Documentation

JAIL=/jails/jail1
mkdir $JAIL
cd /usr/src
DESTDIR=$JAIL make installworld 
DESTDIR=$JAIL make distribution

Set up /etc/fstab to mount ports in your jail:

/usr/ports      /jails/jail1/usr/ports      nullfs  ro,auto 0       0


Set up /jails/jail1/etc/make.conf for ports:

WRKDIRPREFIX=/var/wrkdir
DISTFILES=/var/distfiles


Links

FAQ

ln: /dev/log: Operation not permitted

How to see which jails are active?

jls


(dis) allow icmp

sysctl security.jail.allow_raw_sockets

enter a jail

Get the JID of the jail to enter

jls

Then enter jail 2 with your shell of choice

jexec 2 csh


(postgresql) FATAL: could not create shared memory segment: Function not implemented

# For PostgreSQL
#http://www.freebsddiary.org/jail-multiple.php
jail_sysvipc_allow="YES"

non-existent system call invoked

compat options? COMPAT_* in kernel?


jls shows stopped jail

something is still in use.

Notes

sysinstall _ftpPath=ftp://ftp.FreeBSD.org/pub/FreeBSD/ nonInteractive=yes mediaSetFTP

             releaseName=7.1-RELEASE dists=base distSetCustom installRoot=<JAILDIR> installCommit