Category Archives: Linux

This is where all my linux pages will live.

Determining what security fixes have been backported

Posted on October 25, 2013 by vicki

RPM Command The rpm command can be used to determine what fixes have been backported as follows: rpm -q –changelog pkgname will show the package changelog, where vulnerabilities that have been patched in a package are listed.   Another place … Continue reading →

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Force phpMyAdmin to https

Posted on October 25, 2013 by vicki

1) Using Apache .htaccess (this can also be put in the httpd.conf if you don’t use .htaccess files): RewriteEngine On RewriteCond %{SERVER_PORT} !^443$ RewriteRule ^/directory(.*)$ https://%{HTTP_HOST}/directory$1 [L,R] 2) Using phpMyAdmin’s config.inc.php file: ** place this at the end of the … Continue reading →

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Checking whether TRACE/TRACK are enabled in Apache

Posted on October 22, 2013 by vicki

curl -v -X TRACE http://www.yourserver.com Running it against an Apache server with TraceEnable Off correctly returns HTTP/1.1 405 Method Not Allowed (just tested on an Apache 2.2.22) This also works on HTTPS sites, provided that cURL has the correct information … Continue reading →

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Upgrade PHP

Posted on October 16, 2013 by vicki

Ubuntu: sudo add-apt-repository ppa:ondreej/php5 sudo apt-get update sudo apt-get install php5 Ubuntu 10.04 LTS: sudo echo “deb http://ppa.launchpad.net/ondrej/php5/ubuntu lucid mail” >> /etc/apt/sources.list sudo echo “deb-src http://ppa.launchpad.net/ondrej/php5/ubuntu lucid mail” >> /etc/apt/sources.list sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys E5267A6C sudo apt-get update … Continue reading →

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Sed command

Posted on October 11, 2013 by vicki

s/example.com/newdomain.net/g default.template > newdomain.net.conf

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Comparison of different package managers

Posted on August 30, 2013 by vicki

https://wiki.archlinux.org/index.php/Pacman_Rosetta

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PostgreSQL examples

Posted on August 19, 2013 by vicki

http://darthdeus.github.io/blog/2013/08/19/postgresql-basics-by-example/ To look at a stored procedure: Use this to find the procedure name: SELECT routine_schema As schema_name, routine_name As procedure_name FROM information_schema.routines; Then use this from the psql prompt to read the sql: SELECT pg_get_functiondef(( SELECT oid FROM pg_proc … Continue reading →

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Editing the siteurl in the database of a wordpress site

Posted on August 16, 2013 by vicki

use dbname; update wp_options set option_value = http://www.domain.com where option_name = ‘siteurl’ and option_value = ‘http://www.olddomain.com’;

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Difference between which and whereis

Posted on August 5, 2013 by vicki

#Which command checks the user’s path: which iptables /sbin/iptables #Whereis command checks a list of standard Linux places whereis iptables iptables: /sbin/iptables /usr/share/man/man8/iptables.8.gz

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Chmod and Chown Notes

Posted on July 17, 2013 by vicki

find . -type d exec chmod 1775 {} \; -print The most common use of the sticky bit today is on directories. When the sticky bit is set, only the item’s owner, the directory’s owner, or the superuser can rename … Continue reading →

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