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Thursday, June 8, 2017

RHEL7 CentOS7 chroot-named

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Recently, I replaced two old RHEL5 DNS BIND (named) servers to RHEL7. Essentially, I took the easy route and used WebMin config backups to setup the new servers. However, i did come across some easily resolvable issues.

Problem: I want to replace named with chroot-named


yum -y install bind-chroot

systemctl stop named
systemctl disable named

/usr/libexec/setup-named-chroot.sh /var/named/chroot on
mkdir /var/named/chroot/var/named/data
chown named:named /var/named/chroot/var/named/data

systemctl enable named-chroot
systemctl start named-chroot

Problem: Job for named-chroot.service failed because the control process exited with error code.

Solution: you need to mkdir/chown data directory as described above.

You can get additional service status info with journalctl -xe -u named-chroot

Problem: zones aren’t being transferred or files are access-denied (as seen with with the above journalctl command )


#DNS1 (optional?)
scp -p /var/named/chroot/var/named/*.{rev,hosts} root@DNS2:/var/named/chroot/var/named/slaves/

chown -R root:named /var/named/chroot/var/named/slaves/
chmod 770 /var/named/chroot/var/named/slaves/
chmod 660 /var/named/chroot/var/named/slaves/*


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