let's look at these two iptables rules which are often used to allow outgoing DNS: iptables -A OUTPUT -p udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A
SlashGear on MSN: 3 used sport motorcycles you should steer clear of, according to owners
If you're in the market for a used sport motorcycle, there are at least a dozen great options. What do the owners say? Which ones should you avoid?
3 used sport motorcycles you should steer clear of, according to owners
Between the 90s and 00s, the appetite for sports bikes seemed to be insatiable. Every major manufacturer responded to the high demand with – at the very least – one sports bike. Virtually all of these ...
There are thousands of used cruiser-style motorcycles for sale priced under $5,000. While the best models could show some signs of use, it's important to know what to look for when shopping for a used ...
Wichita's largest indoor sports and adventure facility. Trampolines, basketball, volleyball, parties and events all under one roof.
First give a -p option like -p tcp or -p udp. Examples: iptables -A INPUT -p tcp --dport 22 -m state --state NEW -j DROP iptables -A INPUT -p udp --dport 53 --sport 1024:65535 -j ACCEPT You could also try -p all but I've never done that and don't find too much support for it in the examples.
with "u32 match ip sport 80" in Linux tc I can match port 80, but how can I match a port range 10000 - 20000 ?
At first glance you're only allowing DNS responses to be received and don't create any DNS related rules in the OUTPUT chain to actually allow sending DNS queries out. You current rules: #DNS resolution input and output iptables -A INPUT -p udp --dport 53 -d 8.8.8.8,8.8.4.4 -j ACCEPT ^^^^^ iptables -A INPUT -p udp --sport 53 -s 8.8.8.8,8.8.4.4 -j ACCEPT ^^^^^ Additionally, DNS can also use TCP ...