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Bash: UT-Citrix
I developed the Ubuntu version Citrix thin client. To follow the same naming convention as TC-Citrix, I name it UT-Citrix. Here are the key scripts: checkip #!/bin/bash #wait for the DHCP ready while !...
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Bash: Log File Archive Script
There are some logs files are in such format: 20120130-174201-130947.log. I created two bash scripts to archive them by year/month/day: The first one is based on the log file creation date, the other...
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Auto Configure Proxy in Ubuntu
It is painful to turn the proxy on and off in my Ubuntu laptop between office and home. As a lazy guy, I would like to make it automatic. Easy life now 1) Create 3 scripts named proxy_on, proxy_off...
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Fortinet SSL VPN Client in Ubuntu
It is intereting that the Fortinet SSL VPN client works fine in my Windows machine, but does not work in my Ubuntu laptop. I have found the reason is that a few routes are missed in the routing table....
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Auto deploy Puppet Agent
Continue with my previous Puppet and Puppet dashboard installation, now I start to deploy the agent to all my Ubuntu desktops. I wrote a script to do the dirty work. Pre-requisite package: expect...
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Ubuntu Wallpaper of the Day
My inspiration of the ‘Wallpaper of the Day’ comes from the Nation Geographic Photo of the Day. National Geographic recommends an amazing photo each day on this web site. I wrote a bash script to...
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Bash Special Variables
To better understand the bash special variables, I wrote a script to help myself. #!/bin/bash #Usage of $#echo ————————————————————echo -e You have entered $# arguments. #Usage of $*echo...
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Use svcmon to monitor V7000 SAN
I managed to set up the svcmon to monitor the V7000. Here is my how to: 1) Create passwordless SSH user svcmon Use ssh-keygen to generate a key pair, then create a new user named svcmon (in the admin...
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svcmon web gui
If you have ever used svcmon that you should find that it is not convenient to check the report. Basically, you have to go to the folder to view the graph one by one. What if you want to view …...
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svcmon web gui version 1.1
Continue with my previous svcmon web gui post, I added a small feature to allow users to retrieve the history data in the past X days. Now it looks this: The source codes have been updated and can be...
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Monitor V7000 active alerts in Xymon
Continue with my previous post on installing the Xymon, you can write your own monitor scripts. I wrote a script named v7000alerts to check whether there are active alerts in my IBM StorWize V7000....
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Monitor IBM BladeCenter system status in Xymon
Similar to the IBM StorWize V7000 SAN Xymon monitoring script, I wrote another script to monitor the IBM BladeCenter system status. The script can be downloaded from here:
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Push public key to remote hosts in a batch
Sometimes it is easy to use the passwordless SSH authentication against the remotes hosts. I wrote a script that can push your public key to remote hosts in a batch. The script can be downloaded from here
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Update puppet tags
This script allow you to apply the specified puppet tags to the listed hosts. It will do a dry run against the first host, if you are happy with the results then you can kick off the changes to all …...
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Use sed to append a file to another
To append file2 to a specific line in file1, here is command: sed -i “<line>r file2″ file1 Example:
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Apache mod_rewrite URL redirect script
I wrote a bash script to automate the Apache (mod_rewrite) URL redirection. It supports 3 types of redirection: - One to One: eg. From http://jackiechen.local/mylab To http://jackiechen.org./mylab -...
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Show public IP in Linux command
In Linux console, run the following command to show the public IP address of the machine. curl echoip.net ; echo
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SELinux block timedatectl changes
Just found out this morning that if SELinux is in enforcing mode, it may block the timedatectl command to run in RHEL7. Once changing SELinux to permissive, the problem is gone. Here is the error that...
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Automate Akamai Cloudlets Edge Redirect
This is one of my side projects. It is written in Python and Bash. The step is very straight forward: Download the current production version -> Add the rules, then pushes it to the staging ->...
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Run query via Sumologic API
SumoLogic query can also be run via API. Here is a bash example that I wrote to get the nginx access logs. By default it searches the logs in the past 10 minutes, but you can overwrite it by adding a...
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