DNS Glue records in WHM

You must add this DNS glue record to use you nameservers. Log into WHM. Navigate to the DNS Functions section. Click on the Edit DNS Zone option. Select the domain that you need to add the Records to. Click the Edit button and wait for the page to load. In the first blank, type ns1. … Read more

MySQL InnoDB Recovery

Mysql Recovery. Error logs shows: When page in clustered key index is corrupted. It is worse compared to having data corrupted in secondary indexes, in which case simple OPTIMIZE TABLE could be enough to rebuild it, but it is much better compared to table dictionary corruption when it may be much harder to recover the … Read more

Domain Masking

Domain Masking (a.k.a. Blind Forwarding) is using a domain name to display a different domain, but still shows the original domain’s name in the address bar. Generally, this is considered a bad idea and not good for SEO, but it is possible. Plesk (Applies to 10 – 11.0) In order to forward a domain blindly, … Read more

Hard Drive Tools

With respect to hard drives, the acronym “SMART” stands for Self-Monitoring, Analysis and Reporting Technology. This was built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives. Basically anything after about 2005 should have it. Ubuntu/Debian: CentOS/Fedora/RH: Gentoo: Wiki: http://sourceforge.net/apps/trac/smartmontools/wiki smartctl The program smartctl is used to interface with the SMART features on … Read more

Installing and configuring sysstat on CentOS 8

Sysstat is a package of performance monitoring tools for Linux operating systems. It provides a collection of utilities to collect, process and analyze system utilization data over time. The sysstat package includes tools like sar, iostat, mpstat, and pidstat, which provide various system performance metrics such as CPU, memory, disk and network usage, process statistics, and more. The data collected by sysstat can be used to identify performance bottlenecks, troubleshoot system issues, and make informed decisions about system resource usage.

This article shows how to install sysstat and to check the system.

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Openssl Heartbleed Vulnerability

Find out if your server is affected http://filippo.io/Heartbleed/ Run the command: to get the version number of openssl. If the command shows e.g.: Your server might be vulnerable as the version is below 1.0.1g. But some Linux distributions patch packages, see below for instructions to find out if the package on your server has been … Read more