September 2019 - Page 2 of 66

How To Use Mytop to Monitor MySQL Performance — step-by-step Linux tutorial on Progressive Robot

How To Use Mytop to Monitor MySQL Performance

Mytop is an open source, command line tool used for monitoring MySQL performance. It was inspired by the Linux system monitoring tool named top and is similar to it in look and feel. Mytop connects to a MySQL server and summarizes the information in a useful format. Using mytop, we can monitor (in real-time) MySQL threads, queries, and uptime as well as see which user is running queries on which database, which are the slow queries, and more.

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FreeBSD 12 — popfile — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — popfile — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: popfile file disclosure Upstream summary: John Graham-Cumming reports that certain configurations of POPFile may allow the retrieval of any files with the extensions .gif, .png, .ico, .css, as well as […]

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Ubuntu 18.04 — ec2-hibinit-agent — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ec2-hibinit-agent — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6519-1 Related CVEs: https://launchpad.net/bugs/1941785 Upstream summary: The EC2 hibagent package has been updated to add IMDSv2 support, as IMDSv1 uses an insecure protocol and is no longer recommended. Table of […]

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How to Set Up Tripwire for File Integrity Monitoring on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Tripwire for File Integrity Monitoring on RHEL 9

File Integrity Monitoring (FIM) detects unauthorised modifications to critical system files — a key indicator of compromise that antivirus and network monitoring tools often miss. Tripwire is a battle-tested open-source FIM tool that creates a cryptographic hash database of your filesystem and alerts you when files are added, modified, or deleted. On RHEL 9, Tripwire […]

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How to Fix Python `No such file or directory` Compiler Errors When Installing Packages — step-by-step Linux tutorial on Progressive Robot

How to Fix Python `No such file or directory` Compiler Errors When Installing Packages

A common error that you may receive when installing Python modules is the `No such file or directory` error. This error results from Python trying to call your system compiler during module installation, and – because the paths to your system compiler are often hardcoded into Python itself – not finding the compiler files it needs. This tutorial will provide an example of this error, and the steps to fix it on multiple platforms.

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FreeBSD 12 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: squid — Multiple vulnerabilities Related CVEs: CVE-1999-0710 CVE-2004-0189 CVE-2004-0541 CVE-2004-0832 CVE-2004-0918 CVE-2005-0094 CVE-2005-0095 CVE-2005-0096  +12 more Upstream summary: The squid-cache project reports: Denial of Service in FTP Request/Response smuggling in […]

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