Introduction
In this tutorial we learn how to install bind-chroot on CentOS 8.
What is bind-chroot
This package contains a tree of files which can be used as a chroot(2) jail for the named(8) program from the BIND package. Based on the code from Jan “Yenya†Kasprzak [email protected]
We can use yum or dnf to install bind-chroot on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install bind-chroot.
Install bind-chroot on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install bind-chroot using dnf by running the following command:
sudo dnf -y install bind-chroot
Install bind-chroot on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install bind-chroot using yum by running the following command:
sudo yum -y install bind-chroot
How To Uninstall bind-chroot on CentOS 8
To uninstall only the bind-chroot package we can use the following command:
sudo dnf remove bind-chroot
bind-chroot Package Contents on CentOS 8
/etc/named-chroot.files
/usr/lib/systemd/system/named-chroot-setup.service
/usr/lib/systemd/system/named-chroot.service
/usr/libexec/setup-named-chroot.sh
/var/named/chroot
/var/named/chroot/dev
/var/named/chroot/dev/null
/var/named/chroot/dev/random
/var/named/chroot/dev/urandom
/var/named/chroot/dev/zero
/var/named/chroot/etc
/var/named/chroot/etc/crypto-policies
/var/named/chroot/etc/crypto-policies/back-ends
/var/named/chroot/etc/named
/var/named/chroot/etc/named.conf
/var/named/chroot/etc/pki
/var/named/chroot/etc/pki/dnssec-keys
/var/named/chroot/run
/var/named/chroot/run/named
/var/named/chroot/usr
/var/named/chroot/usr/lib64
/var/named/chroot/usr/lib64/bind
/var/named/chroot/usr/share/GeoIP
/var/named/chroot/var
/var/named/chroot/var/log
/var/named/chroot/var/named
/var/named/chroot/var/run
/var/named/chroot/var/tmp
References
Summary
In this tutorial we learn how to install bind-chroot on CentOS 8 using yum and dnf.
