Install libmcrypt el6

Scott Mcintyre — Wed, 29 May 2013 23:35:27 +0000

When trying to compile PHP I noticed the libmcrypt package is no longer provided with EL6 / CentOS 6,

checking whether to enable multibyte string support… no
checking whether to enable multibyte regex support… yes
checking whether to check multibyte regex backtrack… yes
checking for external libmbfl… no
checking for mcrypt support… yes
configure: error: mcrypt.h not found. Please reinstall libmcrypt.

Checking if the package exists in the default repos shows it doesn’t,

# yum search libmcrypt
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirrors.versaweb.com
* extras: mirrors.usc.edu
* updates: mirrors.easynews.com
Warning: No matches found for: libmcrypt
No Matches found

You need to obtain this from the epel repos now at http://dl.fedoraproject.org/pub/epel/6/x86_64/ , at the time of writing the version is 2.5.8-9 so you can install this with,

mcryptver=2.5.8-9
arch=x86_64
rpm -Uhv http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-$mcryptver.el6.$arch.rpm
rpm -Uhv http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-devel-$mcryptver.el6.$arch.rpm

An example,

# mcryptver=2.5.8-9
# arch=x86_64
# rpm -Uhv http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-$mcryptver.el6.$arch.rpm
Retrieving http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-2.5.8-9.el6.x86_64.rpm
warning: /var/tmp/rpm-tmp.BoLykl: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
Preparing… ########################################### [100%]
1:libmcrypt ########################################### [100%]
# rpm -Uhv http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-devel-$mcryptver.el6.$arch.rpm
Retrieving http://dl.fedoraproject.org/pub/epel/6/x86_64/libmcrypt-devel-2.5.8-9.el6.x86_64.rpm
warning: /var/tmp/rpm-tmp.6SW2Vh: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
Preparing… ########################################### [100%]
1:libmcrypt-devel ########################################### [100%]

nginx rewrite PHP with no extension

Scott Mcintyre — Thu, 17 Jan 2013 06:14:26 +0000

I recently had to troubleshoot an issue while migrating from cherokee to nginx. This was a PHP application which had a shared set of common scripts , these where accessed by domain/common/file which in turn was translated into /vhosts/shared/common and this then included the necessary files.

After doing the rewrite for nginx,

location ^~ /common/ {
fastcgi_split_path_info ^(/common)(/?.+)$;
fastcgi_param SCRIPT_FILENAME /vhosts/shared/common$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_pass 127.0.0.1:9000;
include fastcgi_params;
}

nginx was simply returning access denied.

# curl http://localhost/common/file
Access denied.

Which is because the new file has no extension and PHP-FPM now defaults to only allow .php. This can be altered by editing security.limit_extensions in the php-fpm.conf (in this case /etc/php-fpm.d/daemon.conf) to allow the extensions you need. In this case we needed it to support files without extensions so setting security.limit_extensions to FALSE done the job,

security.limit_extensions = FALSE

PHP – Scott Mcintyre

Install libmcrypt el6

nginx rewrite PHP with no extension