How To Install bind-sdb-chroot on CentOS 8

bind-sdb-chroot is A chroot runtime environment for the ISC BIND DNS server, named-sdb(8)

Introduction

In this tutorial we learn how to install bind-sdb-chroot on CentOS 8.

What is bind-sdb-chroot

This package contains a tree of files which can be used as a chroot(2) jail for the named-sdb(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-sdb-chroot on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install bind-sdb-chroot.

Install bind-sdb-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-sdb-chroot using dnf by running the following command:

sudo dnf -y install bind-sdb-chroot

Install bind-sdb-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-sdb-chroot using yum by running the following command:

sudo yum -y install bind-sdb-chroot

How To Uninstall bind-sdb-chroot on CentOS 8

To uninstall only the bind-sdb-chroot package we can use the following command:

sudo dnf remove bind-sdb-chroot

bind-sdb-chroot Package Contents on CentOS 8

/etc/named-chroot.files
/usr/lib/systemd/system/named-sdb-chroot-setup.service
/usr/lib/systemd/system/named-sdb-chroot.service
/usr/libexec/setup-named-chroot.sh
/var/named/chroot_sdb
/var/named/chroot_sdb/dev
/var/named/chroot_sdb/dev/null
/var/named/chroot_sdb/dev/random
/var/named/chroot_sdb/dev/urandom
/var/named/chroot_sdb/dev/zero
/var/named/chroot_sdb/etc
/var/named/chroot_sdb/etc/crypto-policies
/var/named/chroot_sdb/etc/crypto-policies/back-ends
/var/named/chroot_sdb/etc/named
/var/named/chroot_sdb/etc/named.conf
/var/named/chroot_sdb/etc/pki
/var/named/chroot_sdb/etc/pki/dnssec-keys
/var/named/chroot_sdb/run
/var/named/chroot_sdb/run/named
/var/named/chroot_sdb/usr
/var/named/chroot_sdb/usr/lib64
/var/named/chroot_sdb/usr/lib64/bind
/var/named/chroot_sdb/usr/share/GeoIP
/var/named/chroot_sdb/var
/var/named/chroot_sdb/var/log
/var/named/chroot_sdb/var/named
/var/named/chroot_sdb/var/run
/var/named/chroot_sdb/var/tmp

References

Summary

In this tutorial we learn how to install bind-sdb-chroot on CentOS 8 using yum and dnf.