Daily Writeups
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Daily Writeups
⤷ Title: Let’s Encrypt Slashes Certificate Lifespans and Sunsets mTLS on May 13
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𐀪 Author: Ddos
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ⴵ Time: Sat, 09 May 2026 02:31:06 +0000
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⌗ Tags: #Technology #45_Day Certificates #ACME #cybersecurity #DevSecOps #Generation Y Intermediates #Let's Encrypt #mTLS #ssl #SysAdmin #tls #Web Security
Daily CyberSecurity
Let’s Encrypt Slashes Certificate Lifespans and Sunsets mTLS on May 13
May 13 Deadline: Let’s Encrypt launches 45-day certs, freezes mTLS, and moves to Gen Y intermediates. Is your automation ready for the triple-threat update?
22 views
Daily Writeups
⤷ Title: The Kernel Kill Switch: Sasha Levin’s New “Last Line of Defense” for Linux Vulnerability Mitigation
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𐀪 Author: ddos
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ⴵ Time: Mon, 11 May 2026 03:29:48 +0000
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⌗ Tags: #Linux #AF_ALG #Cybersecurity 2026 #Infosec #Kernel Taint #Kernel Vulnerability #Killswitch Patch #kprobe #Linux Kernel #Linux Security #Sasha Levin #SRE Tools #Sysadmin
Penetration Testing Tools
The Kernel Kill Switch: Sasha Levin’s New "Last Line of Defense" for Linux Vulnerability Mitigation
Administrators of expansive Linux fleets are being presented with an emergency “kill switch” designed to neutralize vulnerable segments
19 views
Daily Writeups
⤷ Title: Quantum-Ready and AI-Driven: How RHEL 10.2 and 9.8 are Redefining Enterprise Linux Security
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𐀪 Author: Ddos
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ⴵ Time: Mon, 11 May 2026 03:40:11 +0000
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⌗ Tags: #Linux #AI Automation #Ansible #Confidential Computing #Cybersecurity 2026 #enterprise Linux #hybrid cloud #NIST #Post_Quantum Cryptography #red hat #RHEL 10.2 #RHEL 9.8 #SysAdmin
Daily CyberSecurity
Quantum-Ready and AI-Driven: How RHEL 10.2 and 9.8 are Redefining Enterprise Linux Security
Red Hat RHEL 10.2 & 9.8 arrive with NIST Post-Quantum Cryptography, AI-driven Ansible upgrades, and MCP servers for natural language system governance.
10 views
Daily Writeups
⤷ Title: Critical 9.5 Severity: PHP SOAP Extension Flaw Enables Remote Code Execution
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𐀪 Author: Ddos
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ⴵ Time: Mon, 11 May 2026 08:53:30 +0000
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⌗ Tags: #Vulnerability Report #CVE_2026_6722 #CVE_2026_6735 #DevOps #Memory Management #Patch Alert #php #rce #Remote Code Execution #security #SOAP Extension #SysAdmin #Vulnerability #Web Security
Daily CyberSecurity
Critical 9.5 Severity: PHP SOAP Extension Flaw Enables Remote Code Execution
PHP releases urgent security patches for a 9.5 severity RCE in the SOAP extension and a PHP-FPM XSS flaw. Update to 8.2.31, 8.3.31, 8.4.21, or 8.5.6 now!
30 views
Daily Writeups
⤷ Title: PamDOORa Backdoor Targets Linux PAM Stack to Steal Passwords and Wipe Logs
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𐀪 Author: Ddos
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ⴵ Time: Tue, 12 May 2026 09:09:57 +0000
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⌗ Tags: #Malware #anti_forensics #Credential Harvesting #Cybercrime #Flare #infosec #Linux Security #Malware Analysis #PAM Stack #PamDOORa #rootkit #ssh backdoor #SysAdmin
Daily CyberSecurity
PamDOORa Backdoor Targets Linux PAM Stack to Steal Passwords and Wipe Logs
Flare unmasks PamDOORa: a $1,600 Linux backdoor that hijacks the PAM stack to harvest credentials and manipulate authentication logs to evade detection.
35 views
Daily Writeups
⤷ Title: Update Alert: Windows 11 KB5089549 Triggers Widespread Network Degradation and Installation Failures
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𐀪 Author: Ddos
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ⴵ Time: Thu, 14 May 2026 08:34:48 +0000
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⌗ Tags: #Windows #25H2 #Connection Speed #Enterprise Support #IT Administration #KB5089549 #Microsoft Learn #Network Latency #SysAdmin News #Windows 11 #Windows Update Error
Daily CyberSecurity
Update Alert: Windows 11 KB5089549 Triggers Widespread Network Degradation and Installation Failures
Windows 11 KB5089549 is causing severe network lag and boot-loop installation failures. Learn why IT admins say the latency persists even after uninstallation.
14 views
Daily Writeups
⤷ Title: Massive PostgreSQL Update: 11 Vulnerabilities Patched as Version 14 Hits End-of-Life Warning
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𐀪 Author: Ddos
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ⴵ Time: Tue, 19 May 2026 02:12:46 +0000
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⌗ Tags: #Vulnerability Report #Code Execution #CVE_2026_6477 #CVE_2026_6637 #database security #DevOps #infosec #Patch Alert #Postgres Update #PostgreSQL #sql injection #SysAdmin
Daily CyberSecurity
Massive PostgreSQL Update: 11 Vulnerabilities Patched as Version 14 Hits End-of-Life Warning
PostgreSQL releases updates for versions 14-18 fixing 11 vulnerabilities (CVSS 8.8). Plus, critical End-of-Life deadline issued for Postgres 14.
9 views
Daily Writeups
⤷ Title: PoC Exploit Code Publicly Released: New “PinTheft” Linux Flaw Overwrites Page Cache for Instant Root
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𐀪 Author: Ddos
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ⴵ Time: Wed, 20 May 2026 00:30:01 +0000
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⌗ Tags: #Linux #Vulnerability Report #infosec #io_uring #Kernel Security #Linux Exploit #LPE #PinTheft #PoC Disclosed #privilege escalation #RDS Protocol #SysAdmin #V12 Security
Daily CyberSecurity
PoC Exploit Code Publicly Released: New "PinTheft" Linux Flaw Overwrites Page Cache for Instant Root
Technical details and a working PoC exploit are public for PinTheft, a critical Linux local privilege escalation bug. Block the RDS module now.
20 views
Daily Writeups
⤷ Title: Details and PoC Exploit Code Released: Critical Cockpit RCE Flaw Grants Instant Root Shells
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𐀪 Author: Ddos
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ⴵ Time: Wed, 20 May 2026 01:29:45 +0000
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⌗ Tags: #Vulnerability #Cockpit RCE #Command Injection #Hakai Security #infosec #linux vulnerability #PoC Exploit Released #Red Hat Security #Remote Code Execution #SysAdmin
Daily CyberSecurity
Details and PoC Exploit Code Released: Critical Cockpit RCE Flaw Grants Instant Root Shells
Technical details and a functional Python PoC exploit have been released for CVE-2026-4802, a critical Cockpit flaw giving low-privilege users root.
18 views
Daily Writeups
⤷ Title: FreeBSD 15.1-RELEASE Launches with Network and Kernel Upgrades
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𐀪 Author: ddos
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ⴵ Time: Fri, 19 Jun 2026 03:43:42 +0000
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⌗ Tags: #Linux #FreeBSD #open source #operating system #Sysadmin
Information Security News
FreeBSD 15.1-RELEASE Launches with Network and Kernel Upgrades
FreeBSD 15.1-RELEASE introduces major updates to network drivers, ZFS, and virtualization. Discover the latest enhancements in this robust operating system.
14 views
Daily Writeups
⤷ Title: RBAC over SSH . Yes you read it right!
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𐀪 Author: J.P. Behler
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ⴵ Time: Fri, 26 Jun 2026 16:04:34 GMT
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⌗ Tags: #sysadmin #infosec #security #linux #devops
Medium
RBAC over SSH . Yes you read it right!
I want to connect to Server Host “X” to use Service “Y”.
11 views
Daily Writeups
⤷ Title: Linux Fundamentals Part 3: Essential Utilities, Automation, and Logging
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𐀪 Author: Jonathan Sanfer
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ⴵ Time: Fri, 10 Jul 2026 13:41:58 GMT
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⌗ Tags: #linux_commands #tryhackme #cybersecurity #linux #sysadmin
Medium
Linux Fundamentals Part 3: Essential Utilities, Automation, and Logging
Introduction
40 views
Daily Writeups
⤷ Title: Windows Search Box Improvements Roll Out in Windows 11
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𐀪 Author: Do Son
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ⴵ Time: Tue, 14 Jul 2026 05:42:20 +0000
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⌗ Tags: #Windows #Microsoft #SysAdmin #Tech News #Windows 11 #Windows Search
Daily CyberSecurity
Windows Search Box Improvements Roll Out in Windows 11
A Clean, Dedicated Search Utility Microsoft corporate executives recently published an official blog post detailing a refined search experience for Windows 11 Insider Preview participants. This ea…
7 views
Daily Writeups
⤷ Title: Windows Command Line: Navigating and Managing Endpoints with the CLI
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𐀪 Author: Jonathan Sanfer
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ⴵ Time: Fri, 17 Jul 2026 12:54:15 GMT
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⌗ Tags: #windows #infosec #command_line #sysadmin #cybersecurity
Medium
Windows Command Line: Navigating and Managing Endpoints with the CLI
Introduction
9 views
Daily Writeups
⤷ Title: The Linux sort Command Is Not for Alphabetizing: A SOC Analyst’s Guide to Log Triage
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𐀪 Author: Xpert4Cyber
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ⴵ Time: Sat, 19 Sep 2026 18:13:28 GMT
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⌗ Tags: #infosec #threat_hunting #sysadmin #cybersecurity #linux
Medium
The Linux sort Command Is Not for Alphabetizing: A SOC Analyst’s Guide to Log Triage
Most Linux tutorials teach the sort command with a grocery list. Then a real incident hands you tens of thousands of auth log lines and one…
23 views
Daily Writeups
⤷ Title: The Linux Disk Commands I Run First When a Server Fills Up
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𐀪 Author: Xpert4Cyber
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ⴵ Time: Fri, 02 Oct 2026 19:47:20 GMT
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⌗ Tags: #devops #cybersecurity #linux #sysadmin #infosec
Medium
The Linux Disk Commands I Run First When a Server Fills Up
It started with a pager alert at 2:07 AM: “No space left on device.”
26 views