Archive for the tag 'linux'

 

 

Oct 06 2016

Processing CSV Files with Perl and Bash

Published by under Linux

Olivier, a friend of mine, had to parse a CSV file and took the opportunity to benchmark the performance of 3 programming languages.   The file contains server names and disks he needs to add up into a hash table in order to get the total disk space for each server. He assumes on his […]

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Sep 24 2016

Reuse Exchange Certificate on Apache Web Server

Published by under Security

While generating a Microsoft Exchange/IIS certificate, take the opportunity to add extra domain names and reuse it on Apache web server. This will save you a few bucks and time, unless the CA provides a certificate for multiple platforms. First off, copy the pfx file generated with Exchange on the Apache web server. The pfx […]

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Sep 13 2015

Apache Proxy Permission Denied 503

Published by under Apache,Linux

You are proxying Apache requests to another server and your browser throw a 503 error back: “Service temporarily unavailable” Looking at the http logs in /var/log/httpd/ssl_error_log, I am getting (13)Permission denied: proxy: HTTP: attempt to connect to 192.168.1.250:8080 (*) failed SELinux is most likely enabled and denies Apache from initiating connections to the outside. Either […]

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