All Questions
9
questions
0
votes
1
answer
952
views
Correct flag to use instead of --icmp-type?
I am trying to set up iptables v1.8.7 on a Debian 11 Raspberry Pi to block ICMP timestamp requests and replies. The tutorial I am following and all the other forums I have looked at say to use the ...
- 21
1
vote
1
answer
624
views
Iptables-restore does not work with SNAT
I am using Raspbian on a Raspbery Pi (based on Debian 10) and I'm trying to use the following line in my iptables rule set:
-A POSTROUTING -s 2.3.4.5/26 -o eth0 -j SNAT --to-source 1.2.3.4
However ...
- 11
1
vote
0
answers
122
views
Server connections refused when hostname used, works fine with IP
Hope someone can help. I've run a local server for a while on a Rapberry Pi 3b (Raspbian Buster) that includes a PBX server, DNSmasq and local webserver.
I recently upgraded to a Pi4 and performed a ...
- 11
0
votes
0
answers
624
views
How to setup iptables to feed squid proxy server?
I am following this https://raspberrytips.com/raspberry-pi-firewall/ to setup iptables for squid proxy server.
iptables -t nat -A PREROUTING -i wlan0 -p tcp --dport 80 -j DNAT --to 192.168.42.1:3128
...
- 231
26
votes
5
answers
55k
views
iptables/1.8.2 Failed to initialize nft: Protocol not supported
I'm having a problem using iptables on my Raspberry PI.
I've just downloaded a fresh version of Raspbian Lite on my PI and all I'm trying to do is check my iptables rules but it's not working and I'm ...
- 261
1
vote
1
answer
622
views
openvpn is blocking external request to webserver and ssh
My setup:
Raspberry pi 3
OS: raspbian 9 (stretch)
local network (eth0): 192.168.0.X
wireless network(wlan0): 192.168.10.X
This setup is behind a modem/router which provides access to the internet.
...
- 11
0
votes
0
answers
310
views
Unable to ping locally with iptables masquerade wifi repeater
Okay so my network setup is as follows: I have a router that connects to the internet. Said router is 192.168.1.254. My device has 2 wifi adapters. Wlan0 is 192.168.1.99/24 static. (Dhcpcd) Wlan1 is ...
- 161
0
votes
1
answer
3k
views
No routing over OpenVPN connection
I can’t get my OpenVPN (on Raspberry Pi B with Raspian 4.9.24-v7+) working. I can establish the connection, can ping the IP of the device in the local subnet (192.168.201.246), but I can’t ping ...
- 11
0
votes
2
answers
2k
views
Traffic redirection with Rasperry Pi router
I use a Rasperry Pi (running raspbian) as a wi-fi router. It redirects traffic from the Ethernet wire (eth0 - wire + ppp0 - L2TP connection, lx2tp used for it) to wlan0 (USB wi-fi dongle, hostapd used ...
- 123