APPLIES TO: parallels Plesk Panel for Linux/Unix
Yes, it is safe and moreover we recommend to use ‘yum’ (or ‘apt-get’ on Debian) to keep the system up-to-dated.
However some packages may conflict with Plesk or another software, they can be added into skip list. It is recommended to use the following settings:
– for up2date, add into /etc/sysconfig/rhn/up2date:
– for yum, add into /etc/yum.conf:
exclude=kernel* sendmail bind-chroot caching-nameserver
What actions should be done after Apache upgrade on the Plesk system see here.
1) in case Parallels Plesk Panel is installed inside a container, the kernel updates are not necessary – the kernel should be upgraded from the node;
2) in case Parallels Plesk Panel is installed on the hardware server, the kernel updates are recommended, though it is so if there are only vendor’s repositories configured. Otherwise if the custom repositories provide new kernels, this is better to have kernel updated from the vendor repository manually. The reason is simple: the major troubles cause kernels with GRSecurity patches applied. Plesk is not designed to work in such configurations.