Linux
It is possible to modify a partition size on EXT filesystem thanks to some few commands. We will take here a simple example: * We have a /dev/sda5 partition mounted on /home * Its size is currently 150G and we want to reduce it to 100G Let's check the
Linux
If you forgot what iLO IP has been defined on your linux server and you are working remotely on it, don't worry, you can still retrieve it with a common tool called ipmitool - available on most of the distros with standard packages: [admin@myserver /]# ipmitool lan print Set
Linux
Stuck with a telnet session that refuses to give you hand back on console? No worries... You just have to know the correct command to sort this out! When you are opening a telnet connection, you probably got something like: user@server# telnet 127.0.0.1 80 Trying 127.
Linux
When you are using the history command on a UNIX system, by default, you're only getting an action list with numbers but no date and/or time to complete this history. For that, you have to define an environment variable HISTTIMEFORMAT that will describe how you want to
Linux
Let's imagine that we have the following directory listing: $ ls -ls /data/db1/ total 4778688 1488 -rw-r--r-- 1 dbmaster 760264 Feb 14 00:20 database_2016_file1 496 -rw-r--r-- 1 dbmaster 251529 Dec 29 12:45 database_2016_file2 808960 -rw-r--r-- 1
Linux
If your machine is behind a proxy, you probably configured your browser for going through the proxy to reach Internet. But what about command line with curl and wget? If you want to add the proxy temporarily for some few installations for example, just type (by replacing URL and port
Linux
Who never forgot a root password on a running machine that you can't reinstall totally? Most of the linux distributions do have a recovery partition that you can use for that on startup (I won't detail this here). But if you don't have this
Linux
Some Apache servers do activate the DirectoryIndex so you can easily go through the directories listing over HTTP and download some files. It' s often used for giving possibility to people to download multiple releases for a package/software. But in some cases, it can be useful to download
MacOS
It's often very useful to automate opening of multi panes with iTerm to execute many commands or getting access to many servers at the same time. This can be done through AppleScript. You can copy this script and save it as multi-panes.scpt #! /usr/bin/osascript -- List
Linux
When trying to execute a nagios plugin, you're getting this error: # /usr/lib/nagios/plugins/check_procs bash: /usr/lib/nagios/plugins/check_procs: No such file or directory But when checking further, the file does exist: # ls -l /usr/lib/nagios/plugins/check_procs -rwxr-xr-x
Linux
With recent versions of NRPE server, the possibility to enable command args has been disabled. For example, on a Debian Jessie, you can get this kind of error on console: CHECK_NRPE: Received 0 bytes from daemon and in logs: Error: Request contained command arguments! !WARNING! This change can lead
Linux
Since Apache 2.4, mod_auth changed and some directive like Order allow,deny Allow from all that have been replaced with Require all granted If you want to automatically handle same configuration for multiple servers where different versions of Apache are installed, you can use this trick: <IfModule