Tag

#Security

23 notes
Software Development

Stop Bots for Free with Cloudflare Turnstile in your Spring Boot App

My first Maven Central library: Free Cloudflare Turnstile integration for Spring Boot with zero CAPTCHA friction.
Oct 2024 · 3 min
DevOps & Infrastructure

Solution for Docker Registry Error: certificate signed by unknown authority

Private Docker registries with self-signed SSL require special config - here's how to make Docker trust them.
May 2020 · 2 min
DevOps & Infrastructure

MySQL.com Hacked and Infected

MySQL.com security breach exposes critical vulnerabilities in web infrastructure.
Sep 2011 · 1 min
Career & Business

Spark::red is PCI Level 1 Certified!

Spark::red ATG Hosting achieves PCI DSS Level 1 certification, the industry's highest security standard.
Jul 2011 · 2 min
DevOps & Infrastructure

Why you should be using a VPN

Wireless networks expose personal data constantly. A VPN encrypts traffic and protects privacy everywhere.
Oct 2010 · 3 min
Tech & Gear

Interesting Phishing Technique

Slick phishing attempt promised revenue share while dodging basic credibility questions - how they hooked readers.
Mar 2010 · 2 min
DevOps & Infrastructure

Spammers using a Thesaurus?

Spam bot ran English through a thesaurus to dodge filters - "beneficial perform" and "possess" exposed the trick.
Mar 2010 · 1 min
DevOps & Infrastructure

SpamCop RBL is Blocking Several Facebook Mail Servers

SpamCop's RBL blocklist is flagging legitimate Facebook servers - if you use it, verify your allowlist.
Mar 2010 · 1 min
10MinuteMail

DDOS Against 10MinuteMail

10MinuteMail faced a multi-country botnet DDOS attack - solved with firewall tuning instead of IP blocking.
Feb 2010 · 1 min
DevOps & Infrastructure

Automated ClamAV Virus Scanning

Automate ClamAV virus scanning on Linux with cron and firewall tuning for continuous protection.
Jan 2010 · 4 min
DevOps & Infrastructure

Looking for abusive clients in your web server logs

Find IPs hammering your web server with a single command: `cut -d ' ' -f 2 | sort | uniq -c | sort -nk 1`
Jul 2009 · 1 min
Software Development

Setting Up SPF, SenderId, Domain Keys, and DKIM

Secure your mail server against spam using SPF, SenderId, Domain Keys, and DKIM - four essential anti-spam authentication standards.
Feb 2009 · 7 min
DevOps & Infrastructure

Monster.com Security Breach

Monster.com breach: user IDs, passwords, emails compromised. Change yours now.
Jan 2009 · 2 min
DevOps & Infrastructure

Server Migration

Server migration complete - sites, apps, and email now live elsewhere. Report issues if you spot them.
Nov 2008 · 1 min
DevOps & Infrastructure

AT&T DNS Cache Poisoning

AT&T DNS servers hit by cache poisoning attacks; vulnerable servers can poison others through trust chains - widespread problem.
Aug 2008 · 3 min
DevOps & Infrastructure

Using IPTables to Prevent SSH Brute Force Attacks

Two iptables rules throttle brute-force SSH attacks: three tries, then a three-minute lockout that bots can't bypass.
May 2008 · 2 min
DevOps & Infrastructure

Don't like people leeching your wireless?

Block wireless leeches? Get creative - upside-down internet redirects everything.
Dec 2007 · 1 min
DevOps & Infrastructure

How to block an IP in Linux

Block malicious IPs in Linux with iptables - a simple script keeps brute-force attackers from hammering your server.
Sep 2007 · 2 min