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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....

Disable MySQL Strict Mode

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

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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How to check LDAPS certificate and TLS version

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