Tru64 Command CheatSheet
TRU64 Command CheatSheet 1. System Version sizer -v 2. Unix Name and hostname uname -n; uname -a 3. Number of CPU(s) sizer -p 4. Memory state vmstat...
Tag: kernel
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Ansible playbook to install list of packages on Redhat or CentOS Linux post OS install.
Here i will show you a sample playbook you can use to install a list of packages in linux. This is a sample playbook we use to install various packages...
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Solved: kernel: INFO: task df:147233 blocked for more than 120 seconds.
Today in this post we will see how to solve the error message “df: task blocked for more than — seconds”. Lets view the error message and how to solve...
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Trick to resolve High memory issue on Linux or Unix Server.
Today we will see a trick to resolve high memory issues on a linux or unix server. We will set few kernel parameters to optimize the memory usage on server....
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Solved: kernel:NMI watchdog: BUG: soft lockup – CPU#20 stuck for 22s! [: ?
Today we will see an interesting article where the server was behaving slow and is generating the error messages like below. I. Error Details Message from syslogd@ngelinux001 at May...
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Solved: sudo taking a lot of time, system responding very slow.
I have recently faced an issue when the system started responding very slowly and when we run any command with sudo it runs damn slow. So to resolve this i...
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Solved: [error] Unable to obtain semaphore.
Today we will see an interesting article how to resolve below error. I. Error Details [root@ngelinux001 conf.d]# service httpd start Starting httpd: [Wed May 18 23:41:31 2022] [notice] suEXEC mechanism...
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Steps to patch Linux/RHEL server.
Today we will look linux server patching process in short. It is quite simple, however very useful to know the steps. Linux Production Server Patching Steps Pre-requisite:- I am assuming...
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NTP Issue: How to solve “NTP Syncing against LOCAL.”error ?
In this post, we will see one of the common NTP issue and its solution. I. Error Message "NTP Syncing against LOCAL." II. Meaning of this error message NTP...