jails HowTo - Linux / Unix Q & A from nixCraft

How to configure a FreeBSD Jail with vnet and ZFS

last updated July 25, 2018 in FreeBSD, FreeBSD Jails (VPS)

How do I install and configure a FreeBSD jail with vnet? How do I create FreeBSD jail with /etc/jail.conf without using iocage command or ezjail command line tool?

How to install and configure Jails on FreeNAS Corral 10

last updated April 8, 2017 in FreeBSD, FreeBSD Jails (VPS), FreeNAS, UNIX

I recently installed or upgraded to FreeNAS Corral (version 10). However, I noticed that there is no support for FreeBSD jails as of 26/March/2017. How do I install and configure traditional FreeBSD jails on FreeNAS Corral (version 10)?

FreeBSD Install OpenNTPD NTP Server / Client To Synchronize The Local Clock

last updated November 23, 2016 in FreeBSD, Hardware, IPv6, Networking, OpenBSD, Package Management, PF Firewall, Security, UNIX

How do I install OpenNTPD ( a Unix system daemon implementing the Network Time Protocol) to synchronize the local clock of a FreeBSD computer system with remote NTP servers called ntp.myisp.com?

FreeBSD Jail Allow Ping / tracerouter Commands

last updated May 6, 2017 in FreeBSD, FreeBSD Jails (VPS), Networking, PF Firewall, UNIX, Virtualization

I‘m not able to ping from FreeBSD prison (jail). I’m able to resolve the names or use ftp / http for ports but ping and traceroute access is disabled. How do I allow virtualized jail application / users to perform traceroute and ping commands?

FreeBSD: Mount /usr/ports Inside Jail

last updated February 20, 2011 in File system, FreeBSD, FreeBSD Jails (VPS)

Q. I’d like to save disk space for my FreeBSD 7 ISP server. We run webserver, nameserver from various jails under powerful HP RAID 10 server. How do I export /usr/ports from host to each jail hosted on /jail/ volume such as /jail/www, /jail/ns, /jail/sql etc?

FreeBSD: Apache httpready filter – Failed to enable the 'httpready' Accept Filter

last updated January 17, 2009 in Apache, FreeBSD, Networking, Troubleshooting

Q. I’ve installed Apache 2.2 from FreeBSD 7.0 ports and when I try to start I get following warning on screen:

Performing sanity check on apache22 configuration:
Syntax OK
Starting apache22.
[Wed Sep 17 22:01:58 2008] [warn] (2)No such file or directory: Failed to enable the ‘httpready’ Accept Filter

How do I fix this error?

How To Upgrade FreeBSD Jail ( OS Level Virtualization )

last updated May 6, 2017 in File system, FreeBSD, Hardware, Networking, Package Management, Virtualization

Q. I’ve FreeBSD jail configured as explained in man pages using make world options. Now I’ve upgrade my base FreeBSD 7.0 system to FreeBSD 7 patch level 4. How do I upgrade my Jail (FreeBSD VPS) so that everything get updated inside jail?