December 2021 - Page 48 of 71

Python struct pack, unpack — step-by-step Python tutorial on Progressive Robot

Python struct pack, unpack

URL: https://www.progressiverobot.com/python-struct-pack-unpack/ Python struct [module](/community/tutorials/python-modules) is capable of performing the conversions between the Python values and C structs, which are represented as [Python Strings](/community/tutorials/python-string). Python Struct Python struct module can be used in handling binary data stored in files, database or from network connections etc. It uses format Strings as compact descriptions of the layout […]

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How to Install containerd on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install containerd on FreeBSD 13

Introduction This guide explains how to Install containerd on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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FreeBSD 13 — py27-amf — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py27-amf — 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: py-amf — input sanitization errors Related CVEs: CVE-2015-8549 Upstream summary: oCERT reports: A specially crafted AMF payload, containing malicious references to XML external entities, can be used to trigger Denial […]

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FreeBSD 13 — py27-urllib — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py27-urllib — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: urllib3 — multiple vulnerabilities Related CVEs: CVE-2018-20060 CVE-2019-11236 CVE-2019-11324 Upstream summary: NIST reports: (by search in the range 2018/01/01 – 2019/11/10): urllib3 before version 1.23 does not remove the Authorization […]

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Установка Nginx на Debian 9 — step-by-step Linux tutorial on Progressive Robot

Установка Nginx на Debian 9

Nginx — один из самых популярных веб-серверов в мире. На веб-серверах Nginx размещены некоторые самые крупные сайты в Интернете с самым высоким уровнем трафика. Обычно он использует ресурсы эффективнее, чем Apache, и может использоваться как веб-сервер или…

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FreeBSD 13 — alsaplayer — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — alsaplayer — 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: alsaplayer — multiple vulnerabilities Related CVEs: CVE-2006-4089 Upstream summary: Luigi Auriemma reports three vulnerabilities within alsaplayer: The function which handles the HTTP connections is vulnerable to a buffer-overflow that happens […]

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How to Set Up DRBD Block Replication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up DRBD Block Replication on Debian 9

Introduction Deploying set up drbd block replication on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]

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Debian 11 — rust-stackvector — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-stackvector — 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-2021-29939 Upstream summary: An issue was discovered in the stackvector crate through 2021-02-19 for Rust. There is an out-of-bounds write in StackVec::extend if size_hint provides certain anomalous data. […]

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Установка Discourse в Ubuntu 20.04 — step-by-step Docker tutorial on Progressive Robot

Установка Discourse в Ubuntu 20.04

Автор выбрал фонд Free and Open Source Fund для получения пожертвования в рамках программы Write for DOnations. Discourse — это платформа для обсуждений с открытым…

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Debian 11 — python-dbusmock — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-dbusmock — 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-2015-1326 Upstream summary: python-dbusmock before version 0.15.1 AddTemplate() D-Bus method call or DBusTestCase.spawn_server_template() method could be tricked into executing malicious code if an attacker supplies a .pyc file. […]

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