Convert Timestamp to Datetime in Linux
Simple command to convert a timestamp to a datetime string in Linux using the date command.
Category
Linux
All things *nix.
82 articles in this category
Convert Hex to Decimal Linux Command Line
Quick tip to convert hex to decimal / decimal to hex on the Linux command line using the printf command.
Installing ManageEngine on Linux 64bit
I came across this same error the last time I tried out Manage Engine's software when installing on a 64bit Debian installation. So here it is for me…
Performance Tuning OwnCloud 6.02
I am using OwnCloud for some personal file storage and synchronizing of Contacts on my Linux server. The web interface is horribly slow with a default install. Here…
PHP Easter Eggs
To honor Easter, I've decided to put this little tidbit of information up. These are PHP "easter eggs". I had no idea these existed until I was running…
Automating Heartbleed Bug Check From Cisco ASA Capture Data
In a previous post I outlined how to capture specific port traffic, in this case HTTPS, on the Cisco ASA. This post is dedicated to parsing the data…
Fight DoS and DDoS With Linux IPTables
Found this on my G+ stream today and thought it was worth keeping around to play with in the future at some point.
Check if Your Linux Server is Affected by Windigo
To find out if your Linux server is affected by the Windigo campaign, you can run the following command.
List Grub2 Kernels and Change Default Boot
Here’s an easy one-liner to get the list of kernels Grub2 has in /boot/grub/grub.cfg. First, let’s find out what the default kernel is… root@vz:~# grep ^GRUB_DEFAULT /etc/default/grub GRUB_DEFAULT=0…
Notes on GNU Screen Windows
Some notes on GNU screen windowing... ^-a C - new window ^-a | - split window vertically ^-a S - split window horizontally ^-a TAB - switch to…
Linux Tape Drive Notes
TAPEDRIVE NOTES (LINUX 2.4) -Rich (01/08/2004) Rewind tape drive: # mt -f /dev/st0 rewind Backup directory /www and /home with tar command (z - compressed): # tar -czf…
Change Image Brightness, Contrast and Hue with ImageMagick Command Line
I have ImageMagick installed on a Linux system I use to host a few websites. From time to time, I need to quickly resize a photo, add a…
View Multiple esxtop Outputs Side-by-Side
The Problem I often use esxtop to review realtime performance metrics of various aspects of my virtual infrastructure. One annoying thing is that I cannot view multiple ESX…
Linux Permissions Primer
You may ask yourself when on your own Linux system or come across a blog what linux rw rw r means? The following primer can help you answer…
Few notes on vim diff
Start up diff: vimdiff or vim -d (requires full install not vim-tiny) If you load up two files in splits (:vs or :sp), you can do :diffthis on…