How To Proxy object storage with Nginx on Ubuntu 16.04
object storage is an object storage service that is compatible with the S3 API. In this tutorial we will show you how to use Nginx to proxy requests for objects on your Space….
Ubuntu 16.04 — luajit — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 19 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4501-1 Related CVEs: CVE-2020-15890 Upstream summary: It was discovered that an out-of-bounds read existed in LuaJIT. An attacker could use this to cause a denial of service (application crash) or […]
How To Monitor Zabbix Alerts with Alerta on Ubuntu 16.04
Alerta is a web application used to consolidate and de-duplicate alerts from multiple monitoring systems and visualize them on a single screen. Alerta can integrate with many well-known monitoring tools like Nagios, Zabbix, Sensu, InfluxData Kapacitor, and…
Ubuntu 16.04 LTS Swap Exhaustion Triggers OOM Kills
🟠 High ⏱ 5–30 min Last verified: 14 October 2020 Affected versions: 16.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
Ubuntu 16.04 — jquery — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 13 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7622-1 Related CVEs: CVE-2020-11023 CVE-2019-11358 CVE-2020-11022 CVE-2012-6708 Upstream summary: It was discovered that jQuery did not correctly handle HTML tags. An attacker could possibly use this issue to execute a […]
Ubuntu 16.04 — highlight.js — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 12 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8276-1 Related CVEs: CVE-2020-26237 Upstream summary: It was discovered that Highlight.js used plain JavaScript objects for internal language name lookups, making them susceptible to prototype pollution attacks. An attacker could […]
How to Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 16.04
Postfix is a *mail transfer agent* (MTA), an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only — that is, those installed on the same server that Postfix is installed on.
Ubuntu 16.04 — icu — multiple vulnerabilities (11 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 11 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5133-1 Related CVEs: CVE-2020-21913 CVE-2020-10531 CVE-2017-15422 CVE-2017-14952 CVE-2017-7867 CVE-2017-7868 CVE-2014-9911 CVE-2015-4844 +3 more Upstream summary: It was discovered that ICU contains a use after free issue. An attacker could use […]
Как установить и использовать Docker в Ubuntu 16.04
Docker – это приложение, позволяющее легко и быстро запускать другие приложения и процессы в контейнерах, которые подобны виртуальным машинам, но являются при этом более портируемыми, потребляют меньше ресурсов, а также меньше зависят от операционной системы машины-хоста. Для…
Ubuntu 16.04 — coturn — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 8 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4690-1 Related CVEs: CVE-2020-26262 CVE-2020-4067 CVE-2020-6061 CVE-2020-6062 Upstream summary: It was discovered that coTURN allowed peers to connect and relay packets to loopback addresses in the range of 127.x.x.x. A […]
