Knowledge Base

We have been running Proxmox 6.0 in some servers and after a few weeks, they were having a hung issue. one-by-one all...

You can check the current cache status and then enable or disable it using the 3ware command line utility tw_cli. First lets see how...

If you are using Zabbix for a long time, then you might notice that the database size of Zabbix is increasing every day. Then...

In August 2019, NGINX Updates Mitigate in many implementations of HTTP/2. NGINX and Cloudflare are aware in this Mandatory case, Fortunately, For...

14.04 , 16.04 , 18.04 , ESM , Extended Security Maintenance , livepatch , sack panic , Security , TCP Sack Panic , Trusty Tahr Issues have been identified in the way the Linux kernel’s TCP implementation...

Redhat Ubuntu reference:https://access.redhat.com/security/vulnerabilities/tcpsackhttps://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11477.htmlhttps://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Primarily Impacted Products Red Hat...

Overview The two most commonly used high availability (HA) cluster configurations are active-active and active-passive. What’s the difference between...

This is enabled by default, but you can disable it in one of a couple ways.

for loop syntax How do I use bash for loop to repeat certain task...

Global :help keyword – open help for keyword:saveas file – save file as:close – close current paneK – open man page for word under the cursor

If you’re an email marketer or maybe troubleshooting with email issue, you’ve probably heard acronyms like “SPF,”...

Let’s Encrypt allows subscribers to validate domain control using any one of a few different validation methods....