Logging Monitoring

How to Configure DirectAccess on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure DirectAccess on Windows Server 2012 R2

How to Configure DirectAccess on Windows Server 2012 R2 DirectAccess provides always-on, seamless remote access for domain-joined Windows clients without requiring user-initiated VPN connections. When a DirectAccess-configured client is outside the corporate network, it automatically establishes an encrypted tunnel to the DirectAccess server using IPv6 over HTTPS (IP-HTTPS) or other transition technologies, giving users transparent […]

Read more
Common Problems 111699

Windows Server 2022 — SMB Access Denied After NTLM Hardening Policy Change — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2022 Affected versions: Windows Server 2022 📖 ~1 min read Table of contents Symptom & Impact Quick Checks Deep Diagnosis Primary Fix Verification Prevention & Hardening Symptom & Impact Users and service accounts lose access to shared folders after security baseline changes disable legacy auth […]

Read more
Ubuntu 20.04 — memcached — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — memcached — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6382-1 Related CVEs: CVE-2022-48571 Upstream summary: It was discovered that Memcached incorrectly handled certain multi-packet uploads in UDP. An attacker could possibly use this issue to cause a denial of […]

Read more
SLES 12 — libyajl2 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libyajl2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 December 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2276-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-24795 Upstream summary: yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` […]

Read more
Debian 11 — mutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0140 CVE-2003-0167 CVE-2004-0078 CVE-2005-2351 CVE-2006-3242 CVE-2006-5297 CVE-2006-5298 CVE-2007-1268  +12 more Upstream summary: Buffer overflow in Mutt 1.4.0 and possibly earlier versions, 1.5.x up to 1.5.3, and other programs […]

Read more
How to Set Up Windows Server Cluster-Aware Updating (CAU) on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Windows Server Cluster-Aware Updating (CAU) on Windows Server 2022

What Is Cluster-Aware Updating and Why It Matters Cluster-Aware Updating (CAU) is a Windows Server feature that automates the process of applying software updates to failover cluster nodes with zero planned downtime. Without CAU, patching a cluster requires a manual, error-prone procedure: drain one node, patch it, reboot, wait for it to rejoin, verify cluster […]

Read more
Debian 11 — optipng — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — optipng — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5101 CVE-2009-0749 CVE-2015-7801 CVE-2015-7802 CVE-2016-2191 CVE-2016-3981 CVE-2016-3982 CVE-2017-1000229  +2 more Upstream summary: Buffer overflow in the BMP reader in OptiPNG 0.6 and 0.6.1 allows user-assisted attackers to execute […]

Read more
Common Problems 118596

Ubuntu 16.04 LTS – system clock drifts and NTP is unsynchronized

🟡 Medium   ⏱ 5–30 min  Last verified: 24 December 2022 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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
Debian 11 — inn2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — inn2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2001-1442 CVE-2004-0045 CVE-2012-3523 Upstream summary: Buffer overflow in innfeed for ISC InterNetNews (INN) before 2.3.0 allows local users in the "news" group to gain privileges via a long […]

Read more
CHAT