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Howto Pass SSH traffic through a Secured Corporate Proxy server with...
Working in the big bad corporate world (being employed in any of the Fortune 500) companies, especially in an IT delivery company is a nasty thing in terms of User Personal Data Privacy because...
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Rsync copy files with root privileges between servers with root superuser...
Sometimes on servers that follow high security standards in companies following PCI Security (Payment Card Data Security) standards it is necessery to have a very weird configurations on servers,to...
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How to clear ARP cache on Linux / Windows for a single IP address / Flush All...
On times of Public Internet IP migration or Local IPs between Linux servers or especially in clustered Linux Application Services running on environments like Pacemaker / Corosync / Heartbeat with...
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How to do Diff (compare files) over SSH between local and remote servers on...
In system administration often we need to compare files located on a different servers, copying the files from Server A to Server B is easy to do but is time consuming as you have use some console ftp...
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ipmitool: Reset and manage IPMI (Intelligent Platform Management Interface) /...
As a system administration nomatter whether you manage a bunch of server in a own brew and run Data Center location with some Rack mounted Hardware like PowerEdge M600 / ProLiant DL360e G8 / ProLiant...
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Check when Windows Active Directory user expires and set user password expire...
If you're working for a company that is following high security / PCI Security Standards and you're using m$ Windows OS that belongs to the domain it is useful to know when your user is set to expiry...
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Linux show largest sized packages / Which Deb, RPM Linux installed package...
A very common problem that happens on both Linux installed servers and Desktop Linux is a starting to fill / (root partition). This problem could happen due to several reasons just to point few of...
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How to install jcmd on CentOS 7 to diagnose running Java Virtual Machine...
jcmd utility is well known in the Brane New wonderful world of Java but if you're like me a classical old school sysadmins and non-java developer you probably never heard it hence before going...
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How to debug failing service in systemctl and add a new IP network alias in...
If you get some error with some service that is start / stopped via systemctl you might be pondering how to debug further why the service is not up then then you'll be in the situation I was today....
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Fix eth changing network interface names from new Linux naming scheme ens,...
On CentOS / RHEL 7 / Fedora 19+ and other Linux distributions, the default network eth0, eth1 .. interface naming scheme has been changed and in newer Linux kernels OS-es to names such as – ens3 ,...
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