Comment surveiller les annonces et les itinéraires BGP en utilisant BGPalerter sur Ubuntu 18.04
L’auteur a choisi le COVID-19 Relief Fund pour recevoir un don dans le cadre du programme Write for DOnations. [BGP (Border Gateway…
Ubuntu 14.04 — walinuxagent — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 4 August 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-3907-1 Related CVEs: CVE-2019-0804 Upstream summary: It was discovered that WALinuxAgent created swap files with incorrect permissions. A local attacker could possibly use this issue to obtain sensitive information from […]
How to Install Mastodon with the cloud provider Marketplace 1-Click
Mastodon is free and open-source software that provides instant global communication that uses a decentralized model. Learn how to spin up a cloud servers with Mastodon pre-installed using the the cloud provider Mastodon 1-Click App.
Oracle Linux 8 — icedtea-web — vulnerability — patch and remediation guide (ELSA-2019-2004)
🟠 High ⏱ 15–60 min Last verified: 4 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-2004 Related CVEs: CVE-2019-10185 CVE-2019-10181 CVE-2019-10182 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
openSUSE Tumbleweed — snack — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2015:0382-1 (see also SUSE bugzilla) Related CVEs: CVE-2012-6303 Upstream summary: Heap-based buffer overflow in the GetWavHeader function in generic/jkSoundFile.c in the Snack Sound Toolkit, as used in WaveSurfer 1.8.8p4, allows remote attackers […]
/dev/null in Linux
/dev/null in Linux is a null device file. This will discard anything written to it, and will return EOF on reading. This is a command-line hack that acts as a vacuum, that sucks anything thrown to it. Let's take a look at understanding what it means, and what we can do with this file. /dev/null […]
Best Practices in Monitoring a Kubernetes Cluster With Prometheus, Grafana and Loki
If you’re responsible for a Kubernetes cluster, it’s important to know how to monitor its health and troubleshoot problems. Learn how to collect metrics from your cluster, setup alerts, and send notifications to the right people when something goes wrong.
Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12671)
🟠 High ⏱ 15–60 min Last verified: 4 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-12671 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 […]
Network Restart Drops Static Routes on RHEL 7
🟡 Medium ⏱ 5–30 min Last verified: 3 August 2019 📖 ~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 & Cross-Refs References & Further […]
Windows Server 2016 – Hyper-V live migration fails with authentication errors – Fix & Prevention (FIX-PREVENTION-2)
🟠 High ⏱ 5–30 min Last verified: 3 August 2019 Affected versions: Windows Server 2016 📖 ~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 […]