Setting up HAProxy with SSL

Well today I was set up a haproxy to use ssl, and did’t figure out from first time how to get only one file for the pem. In haproxy you have only one file with all certificates. So the order is this: cat matrafox.info.key >> matrafox.info.pem cat matrafox.info.crt >> matrafox.info.pem cat intermediate.bundle >> matrafox.info.pem After this just add the bind *:443 ssl crt /etc/ssl/matrafox.info.pem And you will have the right one.
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How to get md RAID array to rebuild even if read errors

Well hope this will help someone like me because I really didn’t find exactly all information on internet. So .. My situation was like this raid 1 software . On smartctl both hard drive look pretty mess up so I decide to switch sdb first. So, I remove the sdb from raid, make the tiket to datacenter and they say won’t change the hard drive because is ok. So I put the sdb back in place but my surprise was big. The raid didn’t build and get a failed . And the sdb was put in (S) spare . cat /proc/mdstat Personalities : [raid1] md3 : active raid1 sdb4[2] sda4[0] 1851802943 blocks super...
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chkconfig list ubuntu

Well on ubuntu I didn’t find a corresponding command to chkconfig list. So a, easy way to find out what is running on startup is to run this: runlevel N X And after you see what runlevel is you list the directory : ls -ialh ls -ialh /etc/rcX.d/ Where X is the answer from runlevel Also some equivalent command: chkconfig –add chkconfig –level 345 on chkconfig –del update-rc.d defaults update-rc.d start 20 3 4 5 update-rc.d -f...
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mod_rpaf and Amazon ELB

Well is clear that if you want to use the amazon elb, you will not see the $REMOTE_ADDR correctly and you will need mor_rpaf enabled and installed. If you have a centos / redhat server I found this nice tutorial on this page mod_rpaf and Amazon ELB mod_rpaf-0.6-0.7.x86_64.rpm And add this LoadModule rpaf_module modules/mod_rpaf-2.0.so RPAFenable On RPAFsethostname On RPAFproxy_ips 10. RPAFheader...
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Memcached on centos 6.5

I am trying to install the memcached not the memcache on centos 6.5 Well if you try with pecl install memcached a error will appear and you can’t install it. A solution is to install it from source. libmemcached release 1.0.16 – installed from source php-memcached release 2.1.0 – installed from source & Added memcached.so in php.ini So basically you download libmemcached and run: configure ; make; make install And php-memcached and run: phpize; configure; make; make install After this you can add to /etc/php.d/memcached.ini the line...
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domain has no valid mail exchangers

Today I face a strange problem with e-mail won’t be deliver, to a client . I have tested from yahoo, gmail and other service and everything was fine however one client from gmx was complain that he can’t send e-mail to that account A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address failed: “user@domain.com”: domain has no valid mail exchangers So, first impresion was to check if domain.com have a mx . So a short dig mx domain.com output a DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1...
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