How to Use `.pop()` in Python Lists and Dictionaries
Learn how to use the `.pop()` method in Python to remove items from lists and dictionaries. Includes syntax, examples, differences from `remove()`, edge case handling, and best practices.
FreeBSD 13 — shoutcast — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: shoutcast — cross-site scripting, information exposure Related CVEs: CVE-2006-3007 Upstream summary: Goober's advisory reports reports that shoutcast is vulnerable to an arbitrary file reading vulnerability: Impact of the vulnerability depends […]
FreeBSD 13 — zh-xemacs-mule — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: emacs — movemail format string vulnerability Related CVEs: CVE-2005-0100 Upstream summary: Max Vozeler discovered several format string vulnerabilities in the movemail utility of Emacs. They can be exploited when connecting […]
Debian 11 — fail2ban — multiple vulnerabilities (8 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2007-4321 CVE-2009-0362 CVE-2009-5023 CVE-2012-5642 CVE-2013-2178 CVE-2013-7176 CVE-2013-7177 CVE-2021-32749 Upstream summary: fail2ban 0.8 and earlier does not properly parse sshd log files, which allows remote attackers to add arbitrary […]
Java ThreadLocal Example
URL: https://www.progressiverobot.com/java-threadlocal-example/ Java ThreadLocal is used to create thread local variables. We know that all threads of an Object share it's variables, so the variable is not thread safe. We can use synchronization for thread safety but if we want to avoid synchronization, we can use ThreadLocal variables. Java ThreadLocal  Every thread […]
How to Install Docker CE on Debian 9
Introduction How to Install Docker CE on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]
Debian 11 — gtetrinet — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2006-3125 Upstream summary: Array index error in tetrinet.c in gtetrinet 0.7.8 and earlier allows remote attackers to execute arbitrary code via a packet specifying a negative number of […]
Debian 11 — foomatic-filters — multiple vulnerabilities (8 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2004-0801 CVE-2010-5325 CVE-2011-2697 CVE-2011-2923 CVE-2011-2924 CVE-2011-2964 CVE-2015-8327 CVE-2015-8560 Upstream summary: Unknown vulnerability in foomatic-rip in Foomatic before 3.0.2 allows local users or remote attackers with access to CUPS […]
Cómo instalar y configurar un servidor de OpenVPN en CentOS 8
Una red privada virtual (VPN), le permite atravesar redes no fiables como si estuviese en una red privada. Le permite acceder a internet de forma segura desde su smartphone o equipo portátil cuando se conecta a una red…
Ubuntu 16.04 — schroot — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5584-1 Related CVEs: CVE-2022-2787 Upstream summary: It was discovered that Schroot incorrectly handled certain Schroot names. An attacker could possibly use this issue to break schroot's internal state causing a […]
