This is my mdadm raid command chet-sheet in linux.Mdadm is a Linux utility to manage and monitor RAID software handled by linux kernel if you do not have or do not use any raid card. Check mdadm raid status from…
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Patch Linux Vulnerability CVE 2021-4034
This Linux vulnerability related to local privilege escalation vulnerability was found on polkit’s pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of…
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Ceph pg Inconsistencie
Based on Ceph health status in my cluster, we see there is one pg with inconsistencie issue; #ceph -s We need to find the related pgs and perform deep-scrup to this spesific pg in order to remove this error.# ceph…
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Apache Log4j vulnerability (CVE-2021-44228)
a remote code execution (RCE) vulnerability in Apache log4j 2 was identified being exploited in the wild. Public proof of concept (PoC) code was released and subsequent investigation revealed that exploitation was incredibly easy to perform. By submitting a specially crafted request to a…
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Proxmox RRDC update error
Have an issue with one of my customer Proxmox RRDC update error in thecluster with error below; This is caused by drifting time on the host. Somehow the time use hwclock with wrong date. To resolve the issue, need to…