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Time-limited whitelisting of IP address(es) with ipset and iptables

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0

I found a question from another post that is close answering what I'm seeking. In short, I want to be able to setup a rule via ipset that times out automatically, but I want to whitelist specific IPs and ranges, and block everything else (on all ports).

---

Original code: Ban 1.1.1.2 for 400 seconds.

ipset create temp_hosts hash:ip timeout 0

iptables -I INPUT 1 -m set -j DROP  --match-set temp_hosts src

iptables -I FORWARD 1 -m set -j DROP  --match-set temp_hosts src

ipset add temp_hosts 1.1.1.2 timeout 400

I would like to change this to whitelist just 192.168.2.123 and 192.168.1.0/255.255.255.0 for 3600 seconds (one hour). How would I modify this script to accomplish this?

Additionally, how could I modify this to allow separate port ranges for 192.168.2.123 versus 192.168.1.0/255.255.255.0?

Work So Far

I've tried this, which works temporarily:

sudo ipset create temp_hosts hash:ip timeout 100 || true

sudo iptables -I INPUT 1   -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -I FORWARD 1 -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -A INPUT     -m set ! --match-set temp_hosts src -j DROP

However, when it completes, everyone is banned indefinitely until I reset the box.

Thank you.

linux iptables firewall whitelist ipset

share

asked 3 mins ago

DevNullDevNull

220110

add a comment | 

0

I found a question from another post that is close answering what I'm seeking. In short, I want to be able to setup a rule via ipset that times out automatically, but I want to whitelist specific IPs and ranges, and block everything else (on all ports).

---

Original code: Ban 1.1.1.2 for 400 seconds.

ipset create temp_hosts hash:ip timeout 0

iptables -I INPUT 1 -m set -j DROP  --match-set temp_hosts src

iptables -I FORWARD 1 -m set -j DROP  --match-set temp_hosts src

ipset add temp_hosts 1.1.1.2 timeout 400

I would like to change this to whitelist just 192.168.2.123 and 192.168.1.0/255.255.255.0 for 3600 seconds (one hour). How would I modify this script to accomplish this?

Additionally, how could I modify this to allow separate port ranges for 192.168.2.123 versus 192.168.1.0/255.255.255.0?

Work So Far

I've tried this, which works temporarily:

sudo ipset create temp_hosts hash:ip timeout 100 || true

sudo iptables -I INPUT 1   -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -I FORWARD 1 -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -A INPUT     -m set ! --match-set temp_hosts src -j DROP

However, when it completes, everyone is banned indefinitely until I reset the box.

Thank you.

linux iptables firewall whitelist ipset

share

asked 3 mins ago

DevNullDevNull

220110

add a comment | 

I found a question from another post that is close answering what I'm seeking. In short, I want to be able to setup a rule via ipset that times out automatically, but I want to whitelist specific IPs and ranges, and block everything else (on all ports).

---

Original code: Ban 1.1.1.2 for 400 seconds.

ipset create temp_hosts hash:ip timeout 0

iptables -I INPUT 1 -m set -j DROP  --match-set temp_hosts src

iptables -I FORWARD 1 -m set -j DROP  --match-set temp_hosts src

ipset add temp_hosts 1.1.1.2 timeout 400

I would like to change this to whitelist just 192.168.2.123 and 192.168.1.0/255.255.255.0 for 3600 seconds (one hour). How would I modify this script to accomplish this?

Additionally, how could I modify this to allow separate port ranges for 192.168.2.123 versus 192.168.1.0/255.255.255.0?

Work So Far

I've tried this, which works temporarily:

sudo ipset create temp_hosts hash:ip timeout 100 || true

sudo iptables -I INPUT 1   -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -I FORWARD 1 -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -A INPUT     -m set ! --match-set temp_hosts src -j DROP

However, when it completes, everyone is banned indefinitely until I reset the box.

Thank you.

linux iptables firewall whitelist ipset

share

asked 3 mins ago

DevNullDevNull

220110

ipset create temp_hosts hash:ip timeout 0

iptables -I INPUT 1 -m set -j DROP  --match-set temp_hosts src

iptables -I FORWARD 1 -m set -j DROP  --match-set temp_hosts src

ipset add temp_hosts 1.1.1.2 timeout 400

sudo ipset create temp_hosts hash:ip timeout 100 || true

sudo iptables -I INPUT 1   -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -I FORWARD 1 -m set -j ACCEPT --match-set temp_hosts src || true

sudo iptables -A INPUT     -m set ! --match-set temp_hosts src -j DROP

share

asked 3 mins ago

DevNullDevNull

220110

share

asked 3 mins ago

DevNullDevNull

220110

asked 3 mins ago

DevNullDevNull

220110

asked 3 mins ago

DevNullDevNull

220110