forked from freifunk-franken/firmware
Robert Langhammer
811fdac32d
With commit [1] the ipv4 firewall on wan interface was removed.
This patch adds the ssh connection limit for ipv4.
IPv6 is already limited.
[1] 52e15e072c ("fff-firewall: Remove ssh firewall on WAN interface")
Signed-off-by: Robert Langhammer <rlanghammer@web.de>
Reviewed-by: Fabian Bläse <fabian@blaese.de>
[improve commit reference]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
6 lines
558 B
Plaintext
6 lines
558 B
Plaintext
# Limit ssh to 6 new connections per 60 seconds
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/usr/sbin/ip6tables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -m recent --set --name dropbear
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/usr/sbin/ip6tables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -m recent --update --seconds 60 --hitcount 6 --rttl --name dropbear -j DROP
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/usr/sbin/iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -m recent --set --name dropbear
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/usr/sbin/iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -m recent --update --seconds 60 --hitcount 6 --rttl --name dropbear -j DROP
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