Add a DKIM Key
You would add the DKIM record as a txt record Name: 122132._domainkey Value: DKIM public key and options
Change IP route for Blacklist
Add the clean IP to the server. Edit the firewall to NAT all connections FROM port 25 to use the new IP. Ensure that the IP is on eth1 or…
Difference between SATA I, SATA II and SATA III
What is the difference between SATA I, SATA II and SATA III? SATA I (revision 1.x) interface, formally known as SATA 1.5Gb/s, is the first generation SATA interface running at 1.5 Gb/s. The bandwidth throughput, which is supported by the interface, is up to 150MB/s. SATA II (revision 2.x) interface, formally known as SATA 3Gb/s, … Read more
How to Check an IP Address, Routes and links
To get the depth information of your network interfaces like IP Address, MAC Address information, use the following command as shown below.
How to find out the cause of linux server crash after rebooting
If you have a hardware RAID controller, I’d find out if you can read its log (if 3Ware, use tw_cli). And, whether you have hardware or software RAID, you can look at the SMART parameters of the disks (if the disks are connected to a RAID controller, you may need special commands to access them. … Read more
Find out serial / model number and vendor information for SATA and IDE hard disk
Getting hard disk model and number under Linux Try command as follows for /dev/sda (SATA). You need to pass -i or -I option which request identification info directly from the drive, which is displayed in a new expanded format: # hdparm -I /dev/sda # hdparm -I /dev/sda | grep Serial OR for IDE /dev/hda # … Read more
Demote a domain controller
https://technet.microsoft.com/en-us/library/jj574104.aspx
Clamd.conf file for CentOS
## ## Example config file for the Clam AV daemon ## Please read the clamd.conf(5) manual before editing this file. ## # Comment or remove the line below. #Example # Uncomment this option to enable logging. # LogFile must be writable for the user running daemon. # A full path is required. # Default: disabled … Read more
Check RAID
root@E31230211151 ~]# tw_cli //E31230211151> show Ctl Model (V)Ports Drives Units NotOpt RRate VRate BBU ———————————————————————— c0 9650SE-2LP 2 2 1 0 1 1 – //E31230211151> /c0 show Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy —————————————————————————— u0 RAID-1 VERIFYING – 2% – 1862.63 RiW ON VPort Status Unit Size Type Phy Encl-Slot Model —————————————————————————— … Read more