Linux

fail2ban missing whois program

fail2ban missing whois program missing whois program in fail2ban email alerts . you are not able to receive IP information . #yum search whois ...

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How to Install the noip Client on Linux

How to Install the noip Client on Linux noip  provides free Dynamic DNS services  ( http://www.noip.com/remote-access) as DynDns was providing but its allow only ...

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Remote Host Identification Has Changed error and solution

Remote Host Identification Has Changed error and solution When we run scp command  to copy data to remote host its gives us error @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ...

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How to search text in linux

How to search text in linux You can use grep command in Linux  for example grep -Ril "text-to-find-here" / i stands for upper/lower case ...

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how to run multiple command on single line on CentOS

If you want to run multiple command on single line on CentOS. If you want to execute each command only if the previous one ...

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CentOS ISO Images Download

CentOS 6.3 32 bit minimal install ISO http://mirror.wiredtree.com/centos/6/isos/i386/CentOS-6.3-i386-minimal.iso CentOS 6.3 64  bit minimal install ISO http://mirror.wiredtree.com/centos/6/isos/x86_64/CentOS-6.3-x86_64-minimal.iso Good mirror site for all CentOS ISO images ...

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How to install Linux from USB

I don’t have DVD Drive on my new Desktop I was worried how i will install OS on my Desktop. I got a good ...

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How to add remove enable disable services on start up in Cent OS

To manage services in Cent OS in Text User Interface (TUI) # ntsysv if you do not have “ntsysv” command  # yum install ntsysv its ...

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Commonly used Linux important Commands

Commonly  used Linux important Commands get list of all installed software rpm -qa | less Use following syntax to list the files for already ...

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Unable to install Webmin

Unable to install Webmin If you are getting below error message while installing webmin warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 11f63c51 ...

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