Relative Content

Redhat/Centos/Fedora

Prefer/Precedence IPv4 over IPv6 for DNS lookups

We had an issue with DNS lookup/Querying the whois servers(Example: whois.crsnic.net) while Domain Search/Registration for any TLDs through WHMCS, Domain Manager etc. The tool/system used to timeout whenever the users searched a domain for availability. We found the following via CLI when telnet’ing to the whois server directly. The above indicates it attempts IPv6 DNS […]

OpenVZ vps creation “Error in check_mount_restrictions (ploop.c:1627)”

I wasn’t able to create new vps in node due to following ploop error. From the log ————————— Creating image: /vz/private/350.tmp/root.hdd/root.hdd size=2306867K Creating delta /vz/private/350.tmp/root.hdd/root.hdd bs=2048 size=4614144 sectors v2 Storing /vz/private/350.tmp/root.hdd/DiskDescriptor.xml Error in check_mount_restrictions (ploop.c:1627): The ploop image can not be used on ext3 or ext4 file system without extents Failed to create image: Error […]

Wowza Streaming Engine (RHEL/Centos/Fedora)

Wowza Streaming Engine (known as Wowza Media Server prior to version 4) is unified server software developed by Wowza Media Systems. The server is used for streaming of live and on-demand video, audio, and RIAs (rich Internet applications) over IP networks to desktop, laptop, and tablet computers, mobile devices, IPTV set-top boxes, internet-connected TV sets, […]

Red5 Media Server: Installation And Configuration (Centos/Fedora/RHEL)

Red5 Media Server delivers a powerful video streaming and multi-user solution to the ¬©Adobe ¬©Flash Player and other exciting client technologies. It works based on Java and some of the most powerful open source frameworks, Red5 stands as a solid solution for business of all sizes including the enterprise. Features ———— Streaming Video (FLV, F4V, […]

Install FFMPEG in Fedora/Centos/RHEL

Introduction ———— FFmpeg is a free software project that produces libraries and programs for handling multimedia data. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. […]

CHECK_NRPE: Error – Could not complete SSL handshake

If you find this error in nagios for a particular server, this means nothing but the nrpe check from nagios server cannot able to complete the service check to client server. You can check this through command line itself, run the following in nagios server. # /usr/local/nagios/libexec/check_nrpe -H hostnameORclientserverIP -c check_load CHECK_NRPE: Error – Could […]

cloudlinux: PHP selector NOT working or BROKEN

It was truly devastating and I was dismayed when I noticed the PHP selector in server got broken or stopped working since the last easy-apache. Tones of tickets were popped in when clients lost their custom php versions and its custom settings I tried to select the php version 5.4 for the domain and set […]

Proper Method To Change Default Mysql Engine Permanently

Here the mysql engine is set to InnoDB by default and I want to change it to MyISAM for long run. It was the old way setting parameter “skip-innodb” and commenting “innodb_file_per_table=1” in my.cnf file. Additionally we used to execute mysql query “SET storage_engine=MYISAM;”. Now a days, the above changes wont work and perhaps the […]

Re-setup and configure the broken WiFi network in RHEL/CentOS/Fedora

Recently I installed CentOS on my VAIO laptop and I had to do some further up-gradation of outdated packages, but that shoved me into a real headache. The WiFi network was working good till starting the upgradation procedure, but stopped right after completing the process. I had no idea then about how this was happened. […]