AWS news analysis and DevOps guides.

AWS news analysis and DevOps guides from the engineers who run production AWS for regulated teams. The Linux and sysadmin archive goes back to 2009.

SysAdmin

Git doesn’t work after upgrading Mac OS X El Capitain

4 October 2015·1 min readArchive

Issue – Git doesn’t work after upgrading Mac OS to X El Capitain – Output when you run git xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at:...

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SysAdmin

Enable TUN / TAP in OpenVZ

8 September 2015·1 min readArchive

Issue You have an OpenVZ VPS and you are getting the following error. [root@vps ~]# cat /dev/net/tun cat: /dev/net/tun: No such device Fix Makes sure you have TUN / TAP enabled on the Hardware node....

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SysAdmin

macOS mail client with Gmail – Disable / unsubscribe syncing a folder

3 September 2015·1 min readArchive

Issue How do i select the folders ti sync from Gmail / Google Apps to Mac OsX Mail client. How do i unsubscribe Folders from syncing with OsX mail app from Google Apps. How do i unsubscribe SPAM...

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SysAdmin

usbhid couldn’t find an input interrupt endpoint

21 August 2015·1 min readArchive

Issue usbhid couldn’t find an input interrupt endpoint The server is showing the above error and not booting at all. Some systems will give you a blinking booting window. Resolution * Remove all the...

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SysAdmin

How to fix / Patch FREAK vulnerability on my server

6 March 2015·1 min readArchive

Issue How can i fix FREAK Vulnerabiltity on my server ### Effected Versions * All RHEL / CentOS Versions including 7 ###Solution * run the below yum update command to update `yum update -y openssl`...

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SysAdmin

Allow a user to run specific sudo command only

6 March 2015·1 min readArchive

Issue I need to give permission to my develper to specific sudo command only. I need to give permission to restart apache httpd service. Versions Any Linux Flavour. CentOS, RHEL, Ubuntu , SuSE etc...

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SysAdmin

How to Extend the partition after extending it from VMware / SAN

6 March 2015·1 min readArchive

Issue CentOS 6/7, RHEL6/7 with XFS file system My / Filesystem is full I have extended the size from VMware datastore or SAN LUN Note Reboot is necessary (6/7) if it is an OS parition ie /. Makesure...

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SysAdmin

Gaana Listen to Indian Music in HQ

28 February 2015·1 min readArchive

There is a new webapp called gaana.com available for all users who is intrested in listening music in HQ. Gaana App is available for iOS and Android. Also you can use the webapp from Any desktop You...

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SysAdmin

tail: cannot watch `messages’: No space left on device

18 February 2015·1 min readArchive

Issue You are trying to tail -f on a file (/var/log/messages , secure or any text file), the command is throwing the below message and command is also not working tail: cannot watch `messages’: No...

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SysAdmin

How to replace TAB in file

18 December 2014·1 min readArchive

If you have a large file and you want to replace TAB with a comma or a new Text. Please use the below command from a Linux Bash Shell sed ‘s/t/NEWTEXT/g’ inputfile.txt > outfile.txt Eg: Replace TAB...

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SysAdmin

Ghost – The Best Blogging Platform

22 November 2014·1 min readArchive

Hello, Its our pleasure to anounce that we have migrated from WordPress to Ghost – Just a Open-Source Blogging Platform. WordPress has gone too far from a Blogging platform to a level of CMS and a...

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SysAdmin

Error, some other host already uses address IP

3 September 2014·1 min readArchive

Error If you get the error, some other host already uses address Please run the below command to see if the IP is really on your network! Diagnosis Please run the below command, arping -q -c 2 -w 3...

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