6,529 reputation
42543
bio website kilroy.chi.il.us
location Illinois
age 49
visits member for 5 years, 8 months
seen Dec 10 at 1:56

Physicist by training, now a programmer by choice. My languages of preference are Java and C, although I am also skilled in C# and many assembly languages, and competent in Perl, general shell scripting, and a handful of other languages I use less often. I can speak basic SQL. I write my HTML by hand and prefer table-free page layout.

I use Linux by preference, but also develop extensively under Windows. I've developed under various embedded and custom OS's and RTOS's (primarily Microware OS-9 and VxWorks), assorted UNIXes, VAX/VMS, and assorted Windows releases. I've played with RSTS/E and a few other operating systems that are unknown today.

My home website is pretty sparse, but will some day be populated. Really.


Dec
7
awarded  Notable Question
Nov
7
awarded  linux
Nov
3
awarded  Self-Learner
Oct
20
comment How to determine what traffic is being dropped / blocked base on iptables log
For ipv6 you need to use ip6tables. It's separate.
Oct
20
revised How to determine what traffic is being dropped / blocked base on iptables log
Add a warning to flush the rules
Oct
20
comment How to determine what traffic is being dropped / blocked base on iptables log
OK, editing my answer to answer that question
Oct
20
answered How to determine what traffic is being dropped / blocked base on iptables log
Oct
20
comment How to determine what traffic is being dropped / blocked base on iptables log
This rule -m limit --limit 5/min -j LOG --log-prefix "iptables denied: will log all packets matching it but no more than five per minute. It doesn't actually deny them, despite what the log prefix is set to. Do you want to log and block all traffic from a certain IP?
Oct
20
comment How to determine what traffic is being dropped / blocked base on iptables log
Yes, something is most likely wrong with your configuration. What are you trying to do exactly? Yes, port 22 is SSH and 80 is HTTP and DPT is destination port, so you are logging some HTTP and SSH traffic. What is your goal? Are you trying to log traffic without affecting it? Are you trying to reject traffic? The "limit" module is used to match in a rate limited fashion.
Sep
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awarded  Explainer
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awarded  Nice Answer
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9
awarded  Good Answer
Aug
27
answered Setting different caching headers for difrerent redirections using Apache mod_rewrite
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30
awarded  Yearling
Jan
26
awarded  Famous Question
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26
awarded  Tumbleweed
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24
awarded  Notable Question
Nov
6
comment “POSSIBLE BREAK-IN ATTEMPT!” in /var/log/secure — what does this mean?
What is the downside to disabling sshd reverse lookups on a server connected to the public Internet? Is there any upside at all to leaving this option enabled?
Nov
5
awarded  Popular Question
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22
awarded  Notable Question