Solved: rhel7 useradd[12345]: cannot open login definitions ?
In this article, we will look at an error message which appears when i am trying to add a user and how to correct it. Error Message [root@ngelinux01 ~]# useradd...
Tag: rhel
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How to grep some content with before and after lines in linux and AIX ?
Today in this article we will look how to search a paragraph like content, or say get some lines before the searched text and few lines afterwards. In linux, we...
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TCPDump useful examples for day to day tasks for RHEL/CentOS.
In this article we will look for tcpdump examples which are useful to accomplish our day to day tasks. Lets have a look at various examples step by step. 1....
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Find files modified before 15 days in current directory and delete them.
In this article, we will see how to find files/directory older than say 15 days and delete those files. The tip is very useful and we use this every alternate...
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How to sync repository in Redhat Satellite 6.5 ?
In this article, we will look how to synchronize a repository on a Redhat satellite 6 server. 1. Check the repository id. [root@ngelinux01 ~]# hammer repository list hammer repository synchro-----|----------------------------------------------------------------------------------|---------------------------------------------------------------|--------------|---------------------------------------------------------------------------------...
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How to monitor IP Tables changes in Linux ?
There is no direct way to monitor IP Tables change in Linux. However today we will look at an interesting article how to monitor the ip tables status to confirm...