Using Varnish (only) for DDoS mitigation
3160
I am under DDoS. What can I do?
89228
Exempt programs or domain from VPN connection
153679
How to configure a firewall that only allows a few webpages and dropbox and U1 services?
128424
Limiting sessions to one IP at a time
121843
How do I sort a list of IP addresses and compute a class and netmask for each?
76843
Using trickle to limit the bandwidth of a VirtualBox VM
141550
Block IPs if they access a resource
32713
Running a caching DNS server on my LAN
93561
How to stop people from using my domain to send spam?
46368
Practical way to implement prevention of IP Spoofing
111268
Block all internet connections unless connected to OpenVPN server
20883
Systematic attacks on multiple services & ports (getting past NAT) on hobby server
122377
Can I create a DC without a DNS Server?
156849
set packet rate limit via iptables
58923
Allow Ubuntu Server Access only from specific IP's
75943
How does an internet server respond to a request from a private IP?
69313
Block all ports except SSH/HTTP in ipchains and iptables