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Riaan's SysAdmin Blog

My tips, howtos, gotchas, snippets and stuff. Use at your own risk!

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Linux

Linux Nagios 

Nagios on Linux for SPARC

April 12, 2016April 14, 2016 admin

I recently experimented a little with Linux for SPARC(more here https://oss.oracle.com/projects/linux-sparc/) and found it to be surprisingly stable. One of

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Linux SSH 

Linux tabbed SSH connection manager

December 1, 2015 admin

I like to work in a tabbed SSH connection manager. Especially when I have hundred’s or thousands of machines to

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Gnome Linux VPN 

Network Manager VPN Connections

October 30, 2013 admin

I have documented previously that the Linux network manager can be used to connect to several different VPN gateways.  There

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Linux Virtualbox 

Fedora 20 Alpha Virtualbox Guest Additions

October 9, 2013October 9, 2013 admin

Just a quick note on getting the guest additions to work on Fedora 20 Alpha. In my setup I was

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Bash Linux 

Disown and background a Unix process

July 29, 2013July 29, 2013 admin

Ever run a very large job and regretting not starting it in the excellent screen utility? If you don’t have

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Linux Ubuntu Virtualbox 

Virtualbox Guest Additions Linux

June 23, 2013June 23, 2013 admin

If you experience issues with installing the Virtualbox Guest Additions it could be that the build environment, dkms or kernel

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Linux SSH 

Ssh tunnelling via intermediate host

June 16, 2013June 16, 2013 admin

I recently needed to copy files using scp, while not able to copy directly to the target host.  I had

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Linux Ubuntu ZFS 

Ubuntu root on ZFS upgrading kernels

June 11, 2013June 19, 2013 admin

Update 1: On a subsequent kernel upgrade to 3.8.0.25 I realized that the zfs modules are getting compiled just fine

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Linux Security 

Display X After User Switch

April 12, 2013July 1, 2013 admin

Sometimes you find yourself having to redirect the X display to a different host but “ssh -X hostname” will not

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Curl Linux 

Curl command line downloads

February 7, 2013February 7, 2013 admin

If you need a command line download on Linux there are several options.  Wget for a simple download is a

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