current community

your communities

more stack exchange communities

company blog
Stack Exchange Inbox Reputation and Badges
tour help
Meta User
Network Profile
58,109 reputation
8 109 168

MadHatter

What's to say? Check my personal website for a touch more detail, if you want to. I've been a professional UNIX/network sysadmin since 1991, and currently sysadmin free software for a living through my own little company. I'm a Fellow of the European Free Software Foundation. A long time ago, I and a co-author wrote "Building Linux and OpenBSD Firewalls" (Wiley, 2000). That's it.

1,224 answers
11 questions
~3.2m people reached
  • Cambridge, United Kingdom
  • teaparty.net
  • Member for 6 years, 3 months
  • 3,603 profile views
  • Last seen 14 hours ago

Communities (22)

Top Meta Posts 12 31

Top Network Posts

Top Tags (693)

Score 1,280
Posts 298
Posts % 24
Score 378
Posts 127
Score 350
Posts 125
Score 334
Posts 55
Score 311
Posts 77
Score 281
Posts 80
View all tags →

Top Posts (1,235) All Questions Answers | Votes Newest

111 What is a challenge password? May 4 '11
95 Choosing between meaningful and meaningless hostnames Feb 18 '13
80 Why would I need a firewall if my server is well configured? Feb 8 '11
52 Is greylisting still an efficient method for preventing spam? Oct 9 '12
52 What is “-bash: !”: event not found" Dec 2 '10
50 How do I edit the crontab of another user on my linux server? Sep 29 '10
48 What are SPF records, and how do I configure them? Mar 14 '12
48 Perform rsync while following sym links Mar 10 '11
48 What are the advantages of tape drives? Nov 5 '13
43 Is my Hard Drive Failing? Nov 24 '14
View all questions and answers →

Badges (285)

Gold 8

Rarest
Silver 109

Rarest
Bronze 168

Rarest
View all badges →