I'm trying to insert multiple new lines of text into an iptables script using sed in a while loop. I'm not sure if this is the most effective way. Searching the forums has helped me come up with a good beginning but it's not 100%. I'd like it to search out a unique line in my current iptables file... (2 Replies)
Hi
I have small home network and I want to block some forums on web
When I use this
iptables -A INPUT -s forum -j DROP
rules is applied but when I restart some of PC rules are not present any more also I tried to save firewall settings
iptables-save > /root/dsl.fw
but how to... (2 Replies)
Hello,
I was playing around with iptables to setup an isolated system. On a SLES10 system, I ran the below to setup my first draft of rules. I noticed that the rules come into effect immediately and do not require any restart of iptables.
iptables -A INPUT -j ACCEPT
iptables -A OUTPUT -m... (4 Replies)
Could someone help me with writing rules for iptables?
I need a dos attacks protection for a game server.
port type udp
ports 27015:27030
interface: eth0
Accept all packets from all IPs
Chek if IP sent more than 50 packets per second
Drop all packets from this IP for 5 minutes
I would be... (0 Replies)
Hi Gurus,
I need to add Multicast Port = xyz
Multicast Address = 123.134.143 ( example) to my firewall rules. Can you please guide me with the lines I need to update my iptables files with. (0 Replies)
Hi Champs
i am new in Iptables and trying to write rules for my Samba server.I took some help from internet, created one script and run from rc.local :
#Allow loopback
iptables -I INPUT -i lo -j ACCEPT
# Accept packets from Trusted network
iptables -A INPUT -s my-network/subnet -j... (0 Replies)
Hello,
I have iptables service running on my CentOS5 server. It has approx 50 rules right now.
The problem I am facing now is as follows -
I have to define a new chain in the filter table, say DOS_RULES & add all rules in this chain starting from index number 15 in the filter table.
... (1 Reply)
Hi,
I've been struggling with this all morning and seem to have a blind spot on what the problem is. I'm trying to use iptables to block traffic on a little cluster of raspberry pi's but to allow ssh and ping traffic within it.
The cluster has a firewall server with a wifi card connecting to... (4 Replies)
Hi, I am relatively new to firewalls and netfilter. I have a Debian Stretch router box running dnsmasq, connected to a VPN. Occasionally dnsmasq polls all of the desired DNS servers to select the fastest. When it does this it responds to replies of the non-selected DNS servers with a icmp type... (0 Replies)
Discussion started by: CrazyDave
0 Replies
LEARN ABOUT MOJAVE
tc-xt
iptables action in tc(8) Linux iptables action in tc(8)NAME
xt - tc iptables action
SYNOPSIS
tc ... action xt -j TARGET [ TARGET_OPTS ]
DESCRIPTION
The xt action allows to call arbitrary iptables targets for packets matching the filter this action is attached to.
OPTIONS -j TARGET [ TARGET_OPTS ]
Perform a jump to the given iptables target, optionally passing any target specific options in TARGET_OPTS.
EXAMPLES
The following will attach a u32 filter to the ingress qdisc matching ICMP replies and using the xt action to make the kernel yell 'PONG'
each time:
tc qdisc add dev eth0 ingress
tc filter add dev eth0 parent ffff: proto ip u32
match ip protocol 1 0xff
match ip icmp_type 0 0xff
action xt -j LOG --log-prefix PONG
SEE ALSO tc(8), tc-u32(8), iptables-extensions(8)iproute2 3 Mar 2016 iptables action in tc(8)