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Sep
15
asked three-way handshake & sequence number
May
25
awarded  Yearling
Apr
19
comment “/etc/apache2/httpd.conf: No such file or directory” error after Ubuntu upgrade
This means: You are creating an empty file called httpd.conf in /etc/apache2/ directory to overcome the error that prevented the apache to start because of the missing file.
Apr
19
answered “/etc/apache2/httpd.conf: No such file or directory” error after Ubuntu upgrade
Feb
9
comment Can't lock vz with proxmox
Is the vm stopped when you try to backup?
Feb
9
comment How to simulate a source IP to test which iptables rules are/aren't firing?
Check about ip spoofing for your operating system
Jan
21
comment Grant permission to manage another users processes
what about SCREEN? library.linode.com/linux-tools/utilities/screen
Jan
21
comment Is my SPF record not valid?
are you trying to send emails from gmail?
Jan
21
comment Output rule doesn't work (iptables)
No problems, glad you fix it :)
Jan
21
comment Output rule doesn't work (iptables)
Check out my answer.
Jan
21
answered Output rule doesn't work (iptables)
Jan
21
comment Output rule doesn't work (iptables)
Is it all you got in output chain? are there any other rules?
Jan
17
revised Mitigate DDoS Proxy attack
deleted 383 characters in body
Jan
16
comment Mitigate DDoS Proxy attack
Another thing, as you should already know the ip address in x-forwarded-for flag is the ip of attacker. I would suggest you to report that ip to authorities.
Jan
16
revised Mitigate DDoS Proxy attack
added 1 characters in body
Jan
16
comment Proxmox server with just one public IP
Not really, but in combination with iptables (shorewall) you can achieve what you want.
Jan
16
answered Proxmox server with just one public IP
Jan
16
comment Mitigate DDoS Proxy attack
I have edited my answer, have a look at it.
Jan
16
revised Mitigate DDoS Proxy attack
added 226 characters in body
Jan
16
comment Mitigate DDoS Proxy attack
Ok, there are some proxies that do not forward requests using exact "X-Forwarded-For" phrase. Use ngrep to check how other proxies are sending requests.