Speeding Up Joomla! a little bit

Since my server is still suffering, Ive decide today to take some actions.

user: changes can be done on shared hosting with limited user rights.
root. changes require a full access to the server (root access with secure shell ssh)

I have currently per months, 160.000 visitors and 2 Millions Hits.or per day 8000 visitors and 24000 pages view.
Server has only 1GB RAM.

UPDATE: I found one/THE reason why my host is slowing down…SPAMMERS!

click read more

phpa = on
phpa.c0_size = 64
phpa.cache_dir = /tmp
phpa.c0_logging = on


;The shm_stats_check_period is the minimum interval between checks of the 
;cache for expired scripts. The first server request after the interval has
;elapsed will trigger a scan of the cache for expired scripts, and remove
;any entries that it finds.
phpa.c0_stats_check_period = 5m

;The shm_ttl value is the value used to set the 
;time-to-expiry value when a script is accessed. Put another way, the shm_ttl
;value is the period after which an unaccessed script expires.
phpa.c0_ttl = 12h

;phpa.ignore_files = ""
;phpa.ignore_dirs = ""

Reduce surface of attack: I found my components that were not used by Joomla! (very old code and uused components . So go through all directories with FTp/SCP and remove any un-needed code….

Review table data directly in the database…
This is how I found 27 000 spams in my gallery (Zoom gallery)
solution:

• I remove all entries
• Disallow comments operations (in Zoom gallery admin panel),

but spammers were still able to insert comments, so I edit the file components/com_zoom/lib/image.class.php
//add because of spammers
header(“HTTP/1.0 403 Forbidden”);
//$database->setQuery(“INSERT INTO #__zoom_comments (imgid,cmtname,cmtcontent,cmtdate) VALUES (‘”.mysql_escape_str

Note: I  recommend You to use also mod_evasive and mod_security  (root access needed), see aprevious article on my site


Some links, where I borrow some ideas:

http://www.primakoala.com/tutorials/guides/speeding_up_joomla.html
http://forum.joomla.org/index.php/topic,50278.0.html
http://forum.joomla.org/index.php/topic,54175.0.html