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APC INFO Monitor

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

…221; errors. If WordPress is the only PHP script software package on the domain, the following configuration will likely work for you; if you have more PHP software packages, you will need to raise apc.shm_size and raise the apc.user_entries_hint and apc.user_entries_hint settings, and possibly lower TTL values to allow cached files to expire and be […]

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

…tcgi, each virtual domain will load its own 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 […]

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

…d web hosting servers, given the number of virtual hosts. You will probably have better results if you remove APC and concentrate on Apache performance tuning and MySQL cache. If your clients are adamant in their requests to use APC cache, you may wish to move them to a different server which can properly handle […]

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

…now the appropriate beginning value for [mysqld] max_connections. Begin with max_connections set slightly higher than Apache’s maxclients. If you are running database caching via APC, you may lower max_connections, because APC will serve the busiest queries directly from cache. Take Time to Get a Realistic Assessment of MySQL Performance If you have a PHP opcode […]

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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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Fail2Ban Regex for RedHat, Fedora, CentOS and Amazon Linux 2013

…Apr 19 05:22:20 vm5 auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=informix rhost= RegEx mentioned previously will match those entries, and via Fail2Ban: BAN the offending IPs. So, you think you’re ready with RegEx fu to tackle the Local Jail (jail.local)? Not so fast. Don’t use regex in jail.local. This file takes wild cards, […]

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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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