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Monthly Archives: July 2012
Browser-Side Caching with Apache
Browser-side caching relies on HTTP headers to know whether or not the content it has in its local cache is still valid. If it is, then it uses the local copy, rather than downloading the file from the server again. … Continue reading
Posted in Apache, Linux
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Magento Notes
Deleting magento cache: You may safely delete the content of var/cache/* and var/session/* or use the “Refresh Cache” functionality within the Admin. To determine magento version:
Posted in Uncategorized
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Subversion Stuff
To establish a subversion repository anew: svnadmin create /var/svn/myrepos svn mkdir -m “creating the trunk dir” file:///var/svn/myrepos/repo1 svn import -m “Adding first directory” /var/www/vhosts/mydomain.com/wordpress file:///var/svn/myrepos/repo1 **Note that if you don’t specify a directory to copy, subversion is happy to add … Continue reading
Posted in Linux
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Grepping (and egrepping) with Style
Grep is a powerful tool. It can do many things well. It can also be used in conjunction with other tools. If you are new to grep, it is a supercharged search tool. The basic format of the command is: … Continue reading
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zend_mm_heap corrupted messages in apache logs
zend_mm_heap corrupted if php5.2. google for patch if php5.3 increase apc memory size in apc.ini
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Access Control Lists
Add ACL for apache user: First see what ACLs exist already: root@server1 mysite.org]# getfacl /var/www/vhosts/mysite.org/uploads getfacl: Removing leading ‘/’ from absolute path names # file: var/www/vhosts/mysite.org/uploads # owner: user1 # group: user1 user::rwx group::rwx mask::rwx other::r-x default:user::rwx default:group::rwx default:mask::rwx default:other::r-x … Continue reading
Tune MySQL
wget http://www.day32.com/MySQL/tuning-primer.sh sh tuning-primer.sh
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Common rewrite rules
The easiest way to redirect one site to another is by adding the following to the Virtualhost: Redirect 301 / http://newsite.com/ Note: When AllowOverride is set to allow the use of .htaccess files, Apache will look in every directory for … Continue reading
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Number of processors/number of cores
cat /proc/cpuinfo | grep processor | wc -l Counts the number of processor lines
Posted in Linux
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