Monday, January 13, 2020

linux - How to SSH to ec2 instance in VPC private subnet via NAT server

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I have created a VPC in aws with a public subnet and a private subnet. The private subnet does not have direct access to external network. S...

linux - CentOS: eror when removing file: "rm: cannot remove '.viminfo': No such file or directory"

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I have a file named .viminfo in home directory. I can see that the file is there by ls -lh : $ ls lh ... drwxr-xr-x. 2 mt1022 1091 4.0K O...

redhat - Apache Config: RSA server certificate CommonName (CN) ... NOT match server name?

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I'm getting this in error_log when I start Apache: [Tue Mar 09 14:57:02 2010] [notice] mod_python: Creating 4 session mutexes based on 3...
Sunday, January 12, 2020

filesystems - EXT3 vs EXT4 vs XFS

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Recently I read a lot about "new" file systems. I checked some benchmarks that show MySQL working faster on EXT4 or XFS (and some ...

linux - Restrict root ssh from all but one IP/hostname

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I'm wanting to restrict root ssh login coming from all but a single IP address. I was under the impression that I just had to add this ...

centos - Access linux machine by hostname within LAN?

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I have a LAN setup with a bunch of windows and linux boxes. The LAN is built on top of the AT&T DSL Router. I don't have any type of...

mod cache - Apache caching based on cookie

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I'm trying to put mod_cache in front of my application server to cache "public" requests but not requests from logged-in users...