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25Feb, 2016

Online System/Network Admin Tools

  1. MXTOOLBOX: One of the most popular website to check MX Records, Blacklist Status, SPF, DKIM, DNS, OPEN Ports etc … website: http://www.mxtoolbox.com 2. WHATISMYDNS: Want to check the global propogation status of your…

03Feb, 2016

Disable IPV6 on CentOS 6.x servers

  1. Edit /etc/sysctl.conf  and add the following line   net.ipv6.conf.all.disable_ipv6 = 1   2. Edit /etc/sysconfig/network and add the following line   NETWORKING_IPV6=no   3. Edit /etc/sysconfig/network-scripts/ifcfg-eth0 and add the following line   IPV6INIT=no   4. Stop iptables6 service   service iptables6 stop   5. Disable…

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