Red Hat Enterprise Linux v5.4 has been released and available via RHN for immediate update. The new version includes the kernel-based virtual machine (KVM) virtualization, next generation of developer features and tools including GCC 4.4, a new malloc(). Also included clustered, high-availability filesystem to support Microsoft Windows storage needs on Red Hat Enterprise Linux.
From the press release:
Because this is an update in the Red Hat Enterprise Linux 5 family, Xen and KVM can both be managed via the open standard libvirt. This provides customers with their choice of virtualization technology with a common management interface. In addition, support of Xen has not ceased â€“ it will continue to be supported through the full lifecycle of Red Hat Enterprise Linux 5. The scalability of the Red Hat virtualization solution has been incremented to support 192 CPUs and 1GB hugepages.
With the close cooperation of our hardware partners and the industry standard bodies, KVM takes full advantage of the latest in chip hardware advances. Performance, scalability, security and stability are enhanced by the tight linkage to Intel VT and AMD-V hardware virtualization. By following the PCI-SIGâ€™s SR-IOV specification and delivered on AMD and Intel chipsets, virtual device enables the efficient and secure sharing of physical devices in both KVM and Xen virtualization.
Make a backup – it cannot be stressed enough how important it is to make a backup of your system before you do this. Most of the actions listed in this post are written with the assumption that they will be executed by the root user running the bash or any other modern shell. Type the following commands
# uname -a
# yum update
Reboot the server:
Verify everything is working:
# uname -a
# netstat -tulpn
# tail -f /var/log/messages
# tail -f /path/to/log/file
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|Category||List of Unix and Linux commands|
|Firewall||Alpine Awall • CentOS 8 • OpenSUSE • RHEL 8 • Ubuntu 16.04 • Ubuntu 18.04 • Ubuntu 20.04|
|Network Utilities||dig • host • ip • nmap|
|OpenVPN||CentOS 7 • CentOS 8 • Debian 10 • Debian 8/9 • Ubuntu 18.04 • Ubuntu 20.04|
|Package Manager||apk • apt|
|Processes Management||bg • chroot • cron • disown • fg • jobs • killall • kill • pidof • pstree • pwdx • time|
|Searching||grep • whereis • which|
|User Information||groups • id • lastcomm • last • lid/libuser-lid • logname • members • users • whoami • who • w|
|WireGuard VPN||Alpine • CentOS 8 • Debian 10 • Firewall • Ubuntu 20.04|