https://100tb.com/community/knowledgebase/display/HOW/Configuring+SMTP+Relay+Server
Key points of trouble–
Make sure the hostname on each server and relay is different and had correct DNS records.
Make sure that you have added a valid SPF records for every domain
as described in our article.
Optimizing an Entry Level WHM/Cpanel VPS Server https://my.bluehost.com/cgi/help/2521 How To Enable GZIP Compression In cPanel WHM https://nixcp.com/free-cpanel-plugins/
http://www.wikihow.com/Find-a-File-in-Linux find / -type f -iname “libphp5.so” find / -type d -iname “ibdata1” find / -type f -iname “*arcconf” grep -R ‘AllowNoPassword’ / egrep ‘User’ /etc/apache2/apache2.conf grep DocumentRoot /etc/apache2/apache2.conf To find files larger than 100MB, use this command: find / -type f -size +100000k -exec du -h {} \; Search within files for specific text:…
Warning the following guide will teach you how to completely delete files from your server. This needs to be run as root so be EXTRA careful before running any command and double check the files that you delete, these will be non-recoverable. If you are working on a small VPS it is not uncommon to…
Supermicro IPMI firmware source: http://www.supermicro.com/support/bios/firmware0.aspx Manual: ftp://supermicro.com/CDR-X9-UP_1.22_for_Intel_X9_UP_platform/IPMI/IPMICFG/Supermicro_Utility_User_Guide_IPMICFG.pdf ===================================================== Find your motherboard info Windows—- launch dxdiag tool from the start menu Linux—- # dmidecode -t 2 yum -y install OpenIPMI service ipmi start chkconfig ipmi on mkdir /ipmi cd /ipmi wget “ftp://ftp.supermicro.com/utility/IPMICFG/IPMICFG_1.27.0_build.170620.zip” unzip IPMICFG_1.27.0_build.170620.zip chmod -R u+rwx IPMICFG_1.27.0_build.170620/Linux/64bit/IPMICFG-Linux.x86_64 cd IPMICFG_1.27.0_build.170620/Linux/64bit/ ./IPMICFG-Linux.x86_64 -dhcp off ./IPMICFG-Linux.x86_64 -m ./IPMICFG-Linux.x86_64…
First access the server command line. I used SSH over Putty (http://www.chiark.greenend.org.uk/~sgtatham/putty/) But you can use the terminal/console if supported by your host, ftp or winSCP (https://winscp.net/eng/docs/guide_install) which may be easier. then access the file /etc/ips.remotedns For SSH I used the command: nano /etc/ips.remotedns you will need to know the nameservers for your domain I…