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Disable MySQL Strict Mode

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

Security Advisory – TCP SACK PANIC – Kernel vulnerabilities – CVE-2019-11477, CVE-2019-11478 & CVE-2019-11479

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...

How to stop bad bots from visiting your website

Recently I noticed in Google Analytics a lot of referral to the page https://www.mydomain-name.com//h/1486338.html that doesn’t exist on one of my website....

Zimbra XXE / SSRF Vulnerability Disclosure

At March 18, 2019 , Rene Ottom, Vice President Product eMail and Collaboration announced that The Zimbra Security team has been...

March 13, 2019: End-of-Life for All TLS-SNI-01 Validation Support

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

How to stop using TLS-SNI-01 with Certbot

Let’s Encrypt is removing support for domain validation with TLS-SNI-01. If you’re using Certbot and received an email titled “Action required: Let’s...

Simple PHP Mail test

This is a simple task and sometimes we need this for testing Prerequisites
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Safe Reboot Of Linux Using Magic SysRq Key

If you are working on kernel development, or device drivers, or running a code that could cause a kernel panic, the SysRq...

How to set a MySQL database to read-only mode

When we need to set the database as read-only on the fly (such as rebuild MySQL replication purpose) and we will use...

How to check LDAPS certificate and TLS version

Get OpenSSL (a list of 3rd party sites here; I went with this one). The connection to your DC thus: openssl...

How to run a manual backup on cPanel

You can use the /usr/local/cpanel/scripts/pkgacct script to create a cpmove archive for an account. After you create the archive, you can then restore the account on any cPanel...