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APC INFO Monitor

How to Configure APC Cache on Virtual Servers with PHP running under FCGId

…h RemoveHandler .php RemoveHandler .php5 IPCCommTimeout 12 You must “babysit” the configuration: use the APC monitor (apc.php) to see how many files are being cached, and how much memory (apc.shm_size) is needed to avoid fragmentation, which will cause the 500 errors. If fragmentation rises quickly to 100%, memory usage is full, and cache full count […]

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Tuning Apache and MySQL for Best Performance in a Shared Virtual Hosting Environment

…1600 table_definition_cache = 1600 max_allowed_packet = 4M key_buffer = 1G interactive_timeout = 2 wait_timeout = 5 long_query_time = 1 log_slow_queries = ON open_files_limit = 3200 innodb_buffer_pool_size = 26M join_buffer_size = 4M tmp_table_size = 72M max_heap_table_size = 72M max_connections = 80 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/ This is for example only! table_cache should be set a little… 38, […]

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WordPress with W3 Total Cache on Nginx with APC (Virtualmin)

…wn php.ini file, so you can add the APC directives to that file (/home/domainname/etc/php5/php.ini) Add the following to php.ini (adjust to your requirements) [APC] extension = apc.enabled = 1 apc.shm_segments = 1 apc.shm_size = 12M apc.optimization = 0 apc.num_files_hint = 256 apc.user_entries_hint = 1024 apc.ttl = 0 apc.user_ttl = 0 apc.gc_ttl = 600 apc.cache_by_default […]

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Web Hosting

Decades of experience hosting websites, from small local sites with only a few html pages, to high-traffic sites with thousands of users and pages.  Website hosting, evolved Web hosting has changed dramatically in the last few years. The majority of accounts are now running PHP scripts and MySQL, whereas in the past most accounts were only […]

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Install phpMyAdmin with SSL on CentOS, Amazon Linux, RedHat (Apache or NginX)

…64/epel-release-6-8.noarch.rpm On Amazon Linux, epel-release is already loaded. Edit /etc/yum.repos.d/epel.repo to enabled=1 Edit /etc/yum.repos.d/epel.repo to only include necessary software packages: includepkgs=phpMyAdmin php–php-gettext I have removed RPMforge repo due to some recent problems, but if you still need rpm forge repo: exclude=phpMyAdmin php–php-gettext Install PMA: yum install phpMyAdmin Apache Edit… 13, 0, 0, 0 and 869.04

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

…al server. However with 200+ virtual hosts all running PHP script packages, as is the case with a commodity shared hosting server, this will use a lot of memory, and you will need somewhere in the neighborhood of 10-30GB apc.shm_size if you attempt to configure a single APC cache for the entire server. My web […]

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Varnish VCL and Config for WordPress with W3 Total Cache

…M / G / T suffix, # # or in percentage of available disk space using the % suffix. VARNISH_STORAGE_SIZE=3G # # # Backend storage specification # malloc runs from RAM, file from file VARNISH_STORAGE=”malloc,${VARNISH_STORAGE_SIZE}” #VARNISH_STORAGE=”file,${VARNISH_STORAGE_FILE},${VARNISH_STORAGE_SIZE}” # # # Default TTL used when the backend does not specify one VARNISH_TTL=120 # # # DAEMON_OPTS is […]

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Apache and MySql Performance Tuning for High Traffic WordPress Website on Cpanel

…s that do not have a solid security and load balancing strategy are subject to crippling traffic from the Internet’s millions of malicious and compromised servers and personal computers. Reconfigured Apache web server, PHP and MySQL to better utilize the server’s horsepower. Cpanel’s efault Apache and MySQL configurations were limiting the number of concurrent user […]

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WordPress Fail2Ban RegEx for RedHat, CentOS, Amazon Linux

VacantServer WordPress sites are getting hammered with bad logins and probes. We’ve implemented a plugin to log failed login attempts to syslog, and a Fail2Ban filter for the same. If you run these on RedHat, you’ll need some additional configuration info… here it is: WordPress login failure regex (error_log): ^%(__prefix_line)sAuthentication failure for .* from <HOST>$ […]

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