IPV6 Error Google Email

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I recently received an error when sending an email to google: The fix is to disable IPv6 in CentOS and postfix Resources: https://wiki.centos.org/FAQ/CentOS6#head-d47139912868bcb9d754441ecb6a8a10d41781df https://www.thegeekdiary.com/centos-rhel-7-how-to-disable-ipv6/ https://serverfault.com/questions/732187/sendmail-can-not-deliver-to-gmail-ipv6-sending-guidelines-regarding-ptr-record For Plesk: https://support.plesk.com/hc/en-us/articles/115002922789-How-to-disable-IPv6-addresses-on-a-Plesk-server-

Show List Of Network Cards in Linux

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How do I display a list of all network cards under Linux operating systems? You can use any one of the following command to list network cards installed under Linux operating systems. Please note that the ifconfig and ip commands will also display interfaces information about vpn, loopback, and other configured interfaces. lspci command : … Read more

How to increase space on a Ubuntu boot partition

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How can I increase the space on an Ubuntu Boot Partition? When trying to install programs on my Ubuntu server but the server is not allowing me to do that because the boot partition ‘/dev/sda1’ is full. By default Ubuntu has a small /boot partition. When you have auto updates enabled this can cause some … Read more

/var/cpanel/secdatadir/ip.pag file massive

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Source: https://forums.cpanel.net/threads/var-cpanel-secdatadir-ip-pag-file-massive.565591/ This can add to server load and slow loading times as it gets scanned every page load. You also might want to disable mod_unique_id for modsec too. It will prevent that file from growing and being scanned. Clear the file yum install ea-modsec-sdbm-util Should also help keep that file in check if he … Read more

TLS 1.2 On Windows 2008 and Window 7

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Window 2008 does support TLS 1.2. There is a free program that will help with the installation. https://www.nartac.com/Products/IISCrypto Running the program and saving should ensure the proper TLS setting is running on your server. A reboot will be required after applying these settings to your server.   Also on older window 7 machines, there are … Read more

Reinstall R1 with Beta module for CentOS 7

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# yum reinstall serverbackup-agent # cd /lib/modules/r1soft # wget http://beta.r1soft.com/modules/Centos_7.4/hcpdriver-cki-3.10.0-693.2.2.el7.x86_64.ko # insmod hcpdriver-cki-3.10.0-693.2.2.el7.x86_64.ko # /etc/init.d/cdp-agent restart