Linux

Common Problems 115969

Ubuntu 26.04 LTS – nftables backend conflicts with legacy iptables scripts

🟡 Medium   ⏱ 5–30 min  Last verified: 2 July 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure ClamAV on Ubuntu 26.04

ClamAV is the most popular open-source antivirus engine for Linux. While Linux malware is less common than on other platforms, ClamAV is valuable for scanning files shared with Windows users, email servers, and web upload directories. This guide installs and configures ClamAV on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu […]

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AlmaLinux 10 — kea — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — kea — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:7342 Related CVEs: CVE-2026-3608 CVE-2025-11232 CVE-2025-32801 CVE-2025-32802 CVE-2025-32803 Upstream summary: DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support […]

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How to Set Up MySQL Master-Replica Replication on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up MySQL Master-Replica Replication on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying set up mysql master-replica replication both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up MySQL Master-Replica Replication on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Rocky Linux 10 — squid — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 10

Rocky Linux 10 — squid — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8119 Related CVEs: CVE-2026-32748 CVE-2026-33526 CVE-2025-62168 Upstream summary: Squid is a high-performance proxy caching server for web clients, supporting FTP, and HTTP data objects. Security Fix(es): * squid: Squid: Denial […]

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Debian 13 — xaos — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — xaos — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0385 Upstream summary: Buffer overflow in xaos 3.0-23 and earlier, when running setuid, allows local users to gain root privileges via a long -language option. Table of contents […]

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Rocky Linux 9 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:15892 Related CVEs: CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749 CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753  +12 more Upstream summary: Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es): * firefox: thunderbird: Incorrect […]

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Rocky Linux 9 — grafana — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — grafana — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:19185 Related CVEs: CVE-2026-25679 CVE-2026-32282 CVE-2026-32283 CVE-2026-27877 CVE-2025-61726 CVE-2025-61728 CVE-2025-61729 CVE-2025-68121  +2 more Upstream summary: Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB […]

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Debian 13 — tuned — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — tuned — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-52336 CVE-2024-52337 Upstream summary: A script injection vulnerability was identified in the Tuned package. The `instance_create()` D-Bus function can be called by locally logged-in users without authentication. This […]

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Debian 13 — inetutils — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — inetutils — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-2529 CVE-2011-4862 CVE-2014-3634 CVE-2019-0053 CVE-2020-10188 CVE-2021-40491 CVE-2022-39028 CVE-2023-40303  +4 more Upstream summary: Unspecified vulnerability in ping.c in iputils 20020927, 20070202, 20071127, and 20100214 on Mandriva Linux allows remote […]

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