Different ways to get user and system information on Linux.

The who command on Linux and UNIX systems will list all currently logged in users on your system. jason@darknet:~$ who -Htu NAME LINE TIME IDLE PID COMMENT jason :0 2016-02-13 13:43 ? 1895 (:0) jason tty2 2016-02-13 13:43 00:01 2164 jason pts/0 2016-02-13 13:43 . 2178 (:0.0)jason@darknet:~$ who -Htu NAME…

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How I fixed the Java out of memory issue on an Amazon AWS instance.

I was trying to get openmeetings working on an Amazon AWS instance today and I kept getting Java out of memory errors. I fixed this with this simple solution I found: http://stackoverflow.com/questions/18078859/java-run-out-of-memory-issue. This fixed my problem and allowed the java application to start with a limited amount of memory. Try…

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Useful commands for getting information about your computers memory status and hard drives.

This command used with grep will return information about your computers memory. jason@jason-desktop:~/Documents$ cat /proc/meminfo | grep Total MemTotal: 12219468 kB SwapTotal: 70311928 kB VmallocTotal: 34359738367 kB CmaTotal: 0 kB HugePages_Total: 0jason@jason-desktop:~/Documents$ cat /proc/meminfo | grep Total MemTotal: 12219468 kB SwapTotal: 70311928 kB VmallocTotal: 34359738367 kB CmaTotal: 0 kB HugePages_Total:…

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Samsung debuts 16 Gigabyte DDR4 server memory module.

This is a 16 Gigabyte RDIMM 16 GB DDR4 server memory module that is now available from Samsung. Only problem is that most computer motherboards can only support 32 Gigabytes of RAM, but that means you only need two of these to make that amount of RAM. Surely you could…

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