Ubuntu 22.04

Common Problems 116968

Ubuntu 22.04 LTS – unattended-upgrades gets stuck and blocks patching – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 January 2023 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]

Read more
How To Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 22.04

Postfix is a mail transfer agent (MTA), an application used to send and receive email. It can be configured so that it can be used to send emails by local application only. In this tutorial, you’ll install and configure Postfix on Ubuntu 22.04 as a send-only SMTP server. You’ll also request free TLS certificates from Let’s Encrypt for your domain and encrypt the outbound emails using them.

Read more
Common Problems 117068

Ubuntu 22.04 LTS – root filesystem full causes service failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 31 December 2022 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]

Read more
Common Problems 117004

Ubuntu 22.04 LTS Nginx Fails Because Port 80 Is Already in Use

🟡 Medium   ⏱ 5–30 min  Last verified: 30 December 2022 📖 ~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 […]

Read more
Ubuntu 22.04 — shim-signed — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — shim-signed — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 December 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6355-1 Related CVEs: CVE-2022-28737 CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2021-3981 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735  +3 more Upstream summary: Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local […]

Read more
Common Problems 116964

Ubuntu 22.04 LTS EXT4 Remounts Read-Only After I/O Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 29 December 2022 📖 ~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 […]

Read more
How To Install and Use PostgreSQL on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use PostgreSQL on Ubuntu 22.04

PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. This guide demonstrates how to install Postgres on an Ubuntu 22.04 server. It also provides instructions for general database administration.

Read more
Ubuntu 22.04 — golang-1.13 — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — golang-1.13 — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 December 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6038-2 Related CVEs: CVE-2022-1705 CVE-2022-27664 CVE-2022-28131 CVE-2022-2879 CVE-2022-2880 CVE-2022-29526 CVE-2022-30629 CVE-2022-30630  +11 more Upstream summary: USN-6038-1 fixed several vulnerabilities in Go 1.18. This update provides the corresponding updates for Go […]

Read more
Common Problems 117069

Ubuntu 22.04 LTS – sudo fails because hostname cannot be resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

Read more
CHAT