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- linux - iptables error: unknown option --dport - Server Fault
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
- How to match port range using u32 filter - Server Fault
with "u32 match ip sport 80" in Linux tc I can match port 80, but how can I match a port range 10000 - 20000 ?
- linux - Iptables: -p udp --state ESTABLISHED - Server Fault
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
- What port should I open to allow remote desktop? - Server Fault
@BrianZ This is Windows 7 8 10 and to get there, just open Start Menu search for "Firewall" and click on "Advanced Settings" on the left-side panel, click on Inbound Rules on left-side panel and on the main panel find Remote Desktop - User Mode (TCP-In) and Remote Desktop - User Mode (UDP-In) and Allow edge traversal for both of them
- linux - How can I port forward with iptables? - Server Fault
How about this: I'm a programmer trying to set up an environment so I can debug my server application in eclipse being called from the innernet Close enough?
- iptables - How to open port 8080? - Server Fault
-A OUTPUT -p tcp -m tcp --sport 8080 -m state --state NEW,ESTABLISHED -j ACCEPT Because your OUTPUT rules block output packets to non-allowed ports, it's allow only access to port 8080
- What is the correct way to open a range of ports in iptables
What you've been told is right, although you've written it wrong (you've forgotten --dport) iptables -A INPUT -p tcp --dport 1000:2000 will open up inbound traffic to TCP ports 1000 to 2000 inclusive -m multiport --dports is only needed if the range you want to open is not continuous, eg -m multiport --dports 80,443, which will open up HTTP and HTTPS only - not the ones in between Note that
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