Frequently Asked Questions About Linux / UNIX » Apache http://www.cyberciti.biz/faq Every answer asks a more beautiful question. Fri, 03 Feb 2012 22:38:32 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Mediawiki PHP Fatal error: Cannot redeclare wfProfileIn() Error and Solutionhttp://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/ http://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/#comments Mon, 26 Dec 2011 19:02:20 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=11289 I'm running the Mediawiki software under Apache web server running on the Unix operating systems. I'm getting the following in my php error log:
PHP Fatal error: Cannot redeclare wfProfileIn() (previously declared in /var/www/html/wiki/includes/profiler/Profiler.php:14) in /var/www/html/wiki/includes/ProfilerStub.php on line 25.
How do I fix this problem under Mediawiki version 1.18.0?]]> http://www.cyberciti.biz/faq/profiler-php-fatal-error-cannot-redeclare-wfprofilein/feed/ 0 HowTo: Merge Apache / Lighttpd / Nginx Server Log Fileshttp://www.cyberciti.biz/faq/unix-linux-merging-multiple-access-logs-with-logfile-merger/ http://www.cyberciti.biz/faq/unix-linux-merging-multiple-access-logs-with-logfile-merger/#comments Wed, 23 Feb 2011 13:07:10 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=10100 http://www.cyberciti.biz/faq/unix-linux-merging-multiple-access-logs-with-logfile-merger/feed/ 0 Mediawiki Fix Internal Server Host Names / Redirection In shared Hosting or Proxy Setuphttp://www.cyberciti.biz/faq/mediawiki-fix-internal-server-host-names-redirect-using-wgserver/ http://www.cyberciti.biz/faq/mediawiki-fix-internal-server-host-names-redirect-using-wgserver/#comments Sun, 19 Dec 2010 21:57:17 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9650 Our customer support wiki runs on an internal host (ip:192.168.1.100:300, hostname a-node100.:300) and it is behind the nginx reverse proxy server. However, our Apache server end up displaying internal server name http://a-node100.:300/, which results into an unexpected redirection and timeouts as http://a-node100.:300/ is not accessible over the Internet. How do I force nginx or apache to use the base URL of our server (http://support.example.com/wiki/)?]]> http://www.cyberciti.biz/faq/mediawiki-fix-internal-server-host-names-redirect-using-wgserver/feed/ 1 Restart Apache 2 In Mac OS Xhttp://www.cyberciti.biz/faq/restart-apache2-mac-osx/ http://www.cyberciti.biz/faq/restart-apache2-mac-osx/#comments Tue, 07 Dec 2010 19:33:44 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9563 How do I restart the Apache 2 Web Server under Apple OS X UNIX operating systems using bash command prompt?]]> http://www.cyberciti.biz/faq/restart-apache2-mac-osx/feed/ 0 WordPress Rename Image URL For a CDN Usagehttp://www.cyberciti.biz/faq/wordpress-offloading-old-static-images-urls-to-cdn-urls/ http://www.cyberciti.biz/faq/wordpress-offloading-old-static-images-urls-to-cdn-urls/#comments Sat, 20 Nov 2010 20:41:47 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9427 Recently, we moved all our static assets to a CDN as described here. However, we have over 8000+ old blog posts and we need to point static images url to our CDN account hosted at http://MyACCOUNT.cloudfront.net/images/ folder. How do I rename all image urls stored in wordpress posts? How do I offload static images to a CDN urls under Wordpress?]]> http://www.cyberciti.biz/faq/wordpress-offloading-old-static-images-urls-to-cdn-urls/feed/ 23 Apache2 NameVirtualHost *:80 has no VirtualHosts Error and Solutionhttp://www.cyberciti.biz/faq/apache2-namevirtualhost-80-has-no-virtualhosts/ http://www.cyberciti.biz/faq/apache2-namevirtualhost-80-has-no-virtualhosts/#comments Wed, 27 Oct 2010 10:09:28 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9144 Whenever I try to star my Apache 2 server under UNIX / Linux and get a warning as follows: [warn] NameVirtualHost *:80 has no VirtualHosts How do I fix this problem?]]> http://www.cyberciti.biz/faq/apache2-namevirtualhost-80-has-no-virtualhosts/feed/ 4 Linux Syslogd: Nothing Gets Logged Using /dev/log And /jail/apache/dev/loghttp://www.cyberciti.biz/faq/syslog-fails-to-open-devlog-nothing-gets-logged/ http://www.cyberciti.biz/faq/syslog-fails-to-open-devlog-nothing-gets-logged/#comments Sun, 22 Aug 2010 07:33:19 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8636 I've configured my Apache in chrooted jail at /jail/apache directory. However, my syslogd is not working and nothing gets logged using /dev/log and /jail/apache/dev/log. How do I fix this problem under CentOS 5.x AMD64 with SELinux?]]> http://www.cyberciti.biz/faq/syslog-fails-to-open-devlog-nothing-gets-logged/feed/ 0 PHP Increase Upload File Size Limithttp://www.cyberciti.biz/faq/linux-unix-apache-increase-php-upload-limit/ http://www.cyberciti.biz/faq/linux-unix-apache-increase-php-upload-limit/#comments Fri, 11 Jun 2010 12:06:23 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=7653 How do I increase upload file limit from 2MB to 10MB under Apache 2 UNIX / Linux web server?]]> http://www.cyberciti.biz/faq/linux-unix-apache-increase-php-upload-limit/feed/ 15 Start / Stop / Restart Apache Web Server Via SSHhttp://www.cyberciti.biz/faq/restart-apache-via-ssh/ http://www.cyberciti.biz/faq/restart-apache-via-ssh/#comments Sun, 14 Feb 2010 13:25:51 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=10013 Accessories > Terminal), and then type the following command to login to remote server called server1.cyberciti.biz using the ssh client: $ ssh user@server1.cyberciti.biz Once logged in switch [...]]]> http://www.cyberciti.biz/faq/restart-apache-via-ssh/feed/ 1 Mac OS x Restart Apache Web Serverhttp://www.cyberciti.biz/faq/restarting-apache-under-oxs-commandline/ http://www.cyberciti.biz/faq/restarting-apache-under-oxs-commandline/#comments Fri, 27 Nov 2009 10:28:31 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5905 How do I restart Apache web server under Mac OS X operating systems?]]> http://www.cyberciti.biz/faq/restarting-apache-under-oxs-commandline/feed/ 10 CentOS / Redhat Apache mod_ssl Configurationhttp://www.cyberciti.biz/faq/rhel-apache-httpd-mod-ssl-tutorial/ http://www.cyberciti.biz/faq/rhel-apache-httpd-mod-ssl-tutorial/#comments Sat, 21 Nov 2009 09:18:26 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5816 The mod_ssl module provides strong cryptography for the Apache Web server via the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols. How do I install and configure mod_ssl under CentOS / Fedora / Redhat Enterprise Linux?]]> http://www.cyberciti.biz/faq/rhel-apache-httpd-mod-ssl-tutorial/feed/ 10 Fedora Linux: Start / Stop / Restart Apache Serverhttp://www.cyberciti.biz/faq/starting-restarting-stopping-apache-server-on-fedora/ http://www.cyberciti.biz/faq/starting-restarting-stopping-apache-server-on-fedora/#comments Sun, 08 Nov 2009 18:40:12 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9221 How do I start / stop / restart the Apache server under Fedora Linux using command line options?]]> http://www.cyberciti.biz/faq/starting-restarting-stopping-apache-server-on-fedora/feed/ 0 Firefox: Add a Trusted CAhttp://www.cyberciti.biz/faq/firefox-adding-trusted-ca/ http://www.cyberciti.biz/faq/firefox-adding-trusted-ca/#comments Mon, 31 Aug 2009 09:29:59 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5147 The default Firefox comes with certificates from well-known commercial CAs. My ISP is also CA and Firefox cannot verified it because the CA is not recognized. How do I force Firefox to accept my ISPs certificate?]]> http://www.cyberciti.biz/faq/firefox-adding-trusted-ca/feed/ 6 Apache IPv6 Configuration: Dual Stacked IPv4 & IPv6 Virtual Hostshttp://www.cyberciti.biz/faq/ipv6-apache-configuration-tutorial/ http://www.cyberciti.biz/faq/ipv6-apache-configuration-tutorial/#comments Fri, 28 Aug 2009 04:04:45 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5032 How do I configure Apache IPv6 networking under UNIX / Linux / BSD operating systems? How do I configure httpd IPv6 and IPv4 under RHEL / CentOS / Fedora / Debian / Ubuntu Linux?]]> http://www.cyberciti.biz/faq/ipv6-apache-configuration-tutorial/feed/ 3 Linux: Find Out Apache User Namehttp://www.cyberciti.biz/faq/unix-osx-linux-find-apache-user/ http://www.cyberciti.biz/faq/unix-osx-linux-find-apache-user/#comments Mon, 20 Jul 2009 23:29:21 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8480 How do I find out my apache username under Linux operating system or CentOS Linux server?]]> http://www.cyberciti.biz/faq/unix-osx-linux-find-apache-user/feed/ 0 Mac OS X: Restart / Stop / Start Apache2http://www.cyberciti.biz/faq/restart-apache2-mac-os-x/ http://www.cyberciti.biz/faq/restart-apache2-mac-os-x/#comments Thu, 16 Jul 2009 21:42:07 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8418 How do I restart Apache 2 web server under Apple Mac OS X UNIX operating systems?]]> http://www.cyberciti.biz/faq/restart-apache2-mac-os-x/feed/ 0 Varnish Change Web Server Signature Headershttp://www.cyberciti.biz/faq/linux-unix-bsd-varnish-changing-lighttpd-apache-nginx/ http://www.cyberciti.biz/faq/linux-unix-bsd-varnish-changing-lighttpd-apache-nginx/#comments Wed, 08 Jul 2009 16:14:43 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8260 I'm using Varnish cache infront of Apache web server and I'd like change my web server signature from
Apache/2.2.8 (Ubuntu) mod_python/3.3.1 Python/2.5.2 mod_ssl/2.2.8 OpenSSL/0.9.8g

To:
Apache Web server

How do I change headers using Varnish?]]> http://www.cyberciti.biz/faq/linux-unix-bsd-varnish-changing-lighttpd-apache-nginx/feed/ 0 HowTo: UNIX Restart Apache Serverhttp://www.cyberciti.biz/faq/unix-restart-apache/ http://www.cyberciti.biz/faq/unix-restart-apache/#comments Mon, 06 Jul 2009 20:57:26 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8196 How do I restart Apache web server under UNIX operating systems using command line or over the ssh session?]]> http://www.cyberciti.biz/faq/unix-restart-apache/feed/ 0 PHP Add Captcha Protection To Web Formshttp://www.cyberciti.biz/faq/php-captcha-class-simple-php-captcha-example/ http://www.cyberciti.biz/faq/php-captcha-class-simple-php-captcha-example/#comments Wed, 24 Jun 2009 09:37:59 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=4176 I own a small business website. However, bots started to abusing my forms such as contact.php. How do I stop bots bots from abusing my site? How do I tell if PHP form is submitted by a person or a script?]]> http://www.cyberciti.biz/faq/php-captcha-class-simple-php-captcha-example/feed/ 15 How To Verify SSL Certificate From A Shell Prompthttp://www.cyberciti.biz/faq/test-ssl-certificates-diagnosis-ssl-certificate/ http://www.cyberciti.biz/faq/test-ssl-certificates-diagnosis-ssl-certificate/#comments Sat, 23 May 2009 04:25:55 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3833 How do I verify and diagnosis SSL certification installation from a Linux / UNIX shell prompt? How do I validate SSL Certificate installation and save hours of troubleshooting headaches without using a browser? How do I confirm I've the correct and working SSL certificates?]]> http://www.cyberciti.biz/faq/test-ssl-certificates-diagnosis-ssl-certificate/feed/ 9