Questions tagged [iptables]
is a user-space application to configure the Linux kernel firewall tables. These tables contain chains of rules defining the treatment of network packets.
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30 views
PiVPN client cant connect to local network
I've managed to setup PiVPN on a Raspberry Pi 3+ and I can connect from the outside, I even have Internet access, but I don't have access to the local network.
These VLANs are created under my USG ...
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12 views
Log input traffic using iptables
Is it possible to log input traffic coming to wired Ethernet port using iptables, without syslog running? I want to know about appearance of particular MAC address WiFi node in range of my home WiFi ...
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1answer
33 views
Using cgroup module in iptables cause “no chain by that name” error message
Trying to use cgroup module in iptables rule cause "No chain/target/match by that name" message.
I'm using:
Linux raspberrypi 4.19.42-v7+ #1219 SMP Tue May 14 21:20:58 BST 2019 armv7l GNU/Linux
...
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2answers
33 views
How do I forward port 19132 from a subnet on eth0 to wlan0?
So I currently have a Minecraft server running on a computer in my house and would like to port forward it. However, the computer is in a separate room to the router and doesn't have WiFi. In order to ...
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1answer
30 views
Pi is listening but nothing except ssh can connect
Ok, so I'm stumped. I have a new Raspbian install on a Model B Rev 2 and I can ssh using the IP Address just fine, but I can't connect on any other port outside the pi.
Some details:
pi@dogwood:~ $ ...
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1answer
101 views
How to allow access from OpenVPN set on eth0 to wlan0
So I have the following configuration:
+---------------------+ +----------------------------------+
| 10.10.10.* | | 192.168.100.*...
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2answers
85 views
How to connect a ethernet device(having its own static I.p and netmask) via internet by my laptop?
I have a device which is used to monitor analog sensor data(Micron optics sm130 ) with ethernet port available. Its works fine if If I connect it with my laptop using ethernet cable and by configuring ...
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1answer
123 views
How to connect a ethernet device(having its own static I.p and netmask) wirelessly by my laptop?
I have a device which is used to monitor analog sensor data(Micron optics sm130 ) with ethernet port available. It has
Static IP as 10.0.0.126 Netmask as 255.255.255.0 DHCP server disabled
Its ...
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0answers
16 views
Debian gateway server with webmin suddenly unable to communicate with anything
I have a Raspberry pi running Raspbian Lite and webmin that is been serving as my home network gateway (and has been for some time without issue). Tonight I was attempting to add some port forwarding ...
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2answers
811 views
Raspberry Pi DHCP Server: clients not getting IP addresses
I am relatively new to networking, so please bear with me. For a purely educational project, I've set up a network where the Raspberry Pi 3 running Raspbian Stretch is to function both as a router and ...
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0answers
41 views
iptables doesn't recognise REDIRECT as target
Trying to redirect traffic using iptables v1.6 and the following line:
iptables -t nat -A PREROUTING -p udp --dport 67 -j REDIRECT --to-port 6767
which results in the following output:
iptables: ...
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18 views
How can I gain internet access after a valid login? [duplicate]
I set up my iptables on my raspberry pi to redirect ALL traffic to localhost where my landing page is hosted, so that people on my AP can't access internet without logging in(correctly) first. On the ...
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1answer
485 views
How can I redirect HTTP requests to my captive portal/webserver using iptables
I'm working on a project where we need to use the RPi as a Wifi access point, which I got to work. I can get on the internet through the RPi and can also connect my Apache webserver (which should be ...
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1answer
126 views
Using the Raspberry Pi and OpenVPN
I have had a burning issue with my VPN setup and I am hoping someone will be able to help, or advise.
So I currently have a DD-WRT router with an OpenVPN client setup serving my devices. However the ...
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1answer
149 views
Raspberry Pi not blocking sites based on iptables rules
I am working on a network security project that can inspect network traffic before forwarding and accepting traffic from the internet.
I have a R-Pi B+ Model running raspbian stretch lite where the ...
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2answers
212 views
Raspberry Pi Wifi Repeater – Block Ads
I configured my raspberry pi as a wireless repeater (using hostapd and dnsmasq).
Now I wonder how I could use it to block known ad-servers?
What would be the best way? Using iptables? Or setting up ...
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1answer
105 views
RaspberryPi VPN Router (eth0) works in Wired connections but not in Wireless ones
I have this following setup:
Office Network:
192.168.9.x --> Subnet for all Wired Connections
192.168.9.1 --> Wired Gateway IP
192.168.10.x --> Subnet for all Wireless Connections
192....
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1answer
134 views
How does 'iptables rules table' work with hotspot?
I'm using iptables rule for censorship. I created hotspot.When I try to connect website on raspberry with mother network, It's working. But I try on pc with hotspot my iptable rules isn't working. ...
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1answer
1k views
VPN Passthrough two ethernet interface
I'm a quite new in the network my internet acces have a proxy so to by-pass it I use a VPN hosted on my VPS. I use the OpenVPN Client software for all my devices. (Windows, Android, Linux)
I got a ...
0
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1answer
219 views
Iptables and reverse ssh tunnel to connect with IP camera
I need to be able to access an IP camera that is on the same local network as a raspberry. I do not have access from the outside because it is a mobile data network that does not give me public IP or ...
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1answer
60 views
Forward port (80) to another local network IP
I have a Rpi, which is behind NAT (4G carrier), but I've managed to expose ports to be accessible from the internet using https://www.remot3.it.
I want to use the Rpi as proxy, so I can access a IP ...
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1answer
528 views
Can't ping certain devices on my network [closed]
I've got a rather odd problem. The Raspberry Pi is connected fine to the internet i.e. I can ping google.com and browse the web without any problem. However, the problem for me is that I am unable to ...
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1answer
105 views
Make a program to run on a specific network interface?
Short question: How can you make only one specific program run off wlan0 and leave everything else to run off the ethernet?
Long question: I've been using my Raspberry Pi for a while now and I love ...
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305 views
Raspbian Stretch iptables: Can't redirect all requests to localhost on pi
I have a private hotspot running on the raspberry based on RASPAP, which is working perfectly.
Now I wish to automatically direct all the users who connect to this wifi towards a locally hosted ...
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1answer
320 views
Faking an internet connection on an access point
I'm working on a project where a Raspberry Pi creates its own access point running a Flask server, but will not have an internet connection. I set up the iptables so that when the user tries to ...
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2answers
8k views
Edit iptables to open a port the safest and easiest way (nano?)
I have this web application called HaasBot (running on Mono 5) which I want to run on my Raspberry Pi 3 with Raspbian Stretch Lite (Terminal only!) as a server internally in my network only.
Using SSH ...
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2answers
686 views
How to redirect IP network to specific interface
I'm developping an app for Android Things DP4 on Rpi3.
I need my Rpi to send packets with destination IP in the network 10.110.2.0 with the interface wlan0 and packets with destination IP in the ...
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1answer
153 views
Windows Ping Problem
I seem to be having a strange problem with my Raspberry Pi - I can ssh to the Pi, but the Pi cannot ping the computer I am ssh'ing from (Windows firewall allows ICMP packets). I have the Pi configured ...
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1answer
463 views
How can I activate UFW on my Raspberry Pi 3 B without risking to lock myself out?
I want to activate UFW on my Raspberry Pi 3 B as I have used it previously on another machine and was quite content with that software.
I have already downloaded UFW but I need to make sure that I ...
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1answer
276 views
Prevent traffic from specific IP from routing through OpenVPN
I am using a Raspberry Pi 3 as a WiFi access point, which routes all traffic through the tun0 interface/OpenVPN. However, I'd like to be able to route traffic from a device with the IP 172.24.1.126 on ...
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2answers
64 views
Give fix bandwidth to all ip address for internet, but exclude local apache server
I have installed chilli, apache2, hostapd in raspberry pi. User can connect hostspot created by hostapd. Captive portal will open asking id password(because of chilli). Once user sign in, user ...
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1answer
306 views
How to configure RPI as access point?
All my life, I've been using Adafruit tutorial on How to set PRI as access point, but in the latest release the /etc/network/interfaces file looks diffrent. After following tutorial and reboot, RPI ...
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0answers
670 views
cannot forward from wlan interface to another wlan interface
I have two wlan interfaces: wlan0 wlan1.
wlan0 is an AP managed by hostapd, where as wlan1 is a normal wifi interface, which is connected to my home router via wpa_supplicant.
Additionally I have my ...
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1answer
136 views
Can only SSH using Wi-Fi connection not Ethernet
I have a Pi connected to both Wi-Fi and a cellular gateway but can only SSH into it from the Wi-Fi IP address. Port forwarding is, as far as I can tell, correctly set up on the cellular gateway. I ...
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561 views
Raspberry Pi 3 WiFi to WiFi Access Point not forwarding traffic to Internet
I followed this guide https://pimylifeup.com/raspberry-pi-wireless-access-point/ on how to setup an Ethernet to WiFi access point using the built in RPi WiFi adapter successfully. I connected my phone ...
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1answer
41k views
How to open a port?
I need to open the 25 TCP port on my Raspberry Pi 3, I watched videos on the internet (iptables) nothing works, if you have a solution, using iptables or another method, that would be great.
If you ...
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0answers
103 views
FTP connection broken after configuring iptables on Raspbian
So I managed to get a configuration of iptables that suits my needs, primarily based on 2+ hours of research and reading similar Stack Exchange and forum posts.
However, this seems to have broken my ...
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1answer
25 views
Correctly Route 2 Newtorks
I am currently running Pidora and I have configured it so that dhcpd hands out an IP address to devices connected via Ethernet on a network of 192.168.2.1 whilst it (the Pi) obtains a static IP from ...
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1answer
278 views
Routing network through 3 interfaces
I got a Raspberry Pi 3 which I haven't used in a while, and have decided to boot it up with its built-in wifi card as its own Hotspot, and the official Raspberry Pi Wifi Dongle as an interface to my ...
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1answer
2k views
Error installing iptables-persistent
I tried to install iptables-persistent without success. I checked the dependent packages and tried to install them manually but it is also not working.
What I tried:
sudo apt-get install iptables-...
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2answers
720 views
Issues with WiFi-WiFi Tor Proxy
Background
I am currently trying to build a portable Tor Router on my Raspberry Pi 3.
So I have my Pi 3 with two wireless interfaces, one is a station and the other is an AP.
wlan0 (station) - ...
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0answers
51 views
Steps required to protect home network from Raspberry PI infected with malware or hacked? [duplicate]
I'm not to savvy with network security so I hope someone can help me.
My question is reformulated here to be more precise, something that was requested by other members in the previous question. I ...
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0answers
232 views
Only allow ssh from 192.168.XXX.XXX
How can I only allow ssh access from the local network (192.168.X.X) and drop all requests from the internet?
What is the best option? adding an iptables rule or modifying the /etc/hosts.allow ?
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0answers
6k views
Open Splash Page After Connecting to Wifi Hotspot
I'm using my pi3 to display a local "website" as described here Making a Raspberry Pi 3 accessible w/o configuration via WiFi and static IP/URL.
Therefore, I'm creating a hotspot with the pi. This ...
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1answer
234 views
Using Pi as a router doesn't Internet - funky iptables?
I'm using this Adafruit guide for turning my Raspberry Pi 2 B+ into a wifi router. I've got all the software installed and it works! Well, sort of.
I can connect to the router A-OK, and if I run
...
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1answer
2k views
Raspberry pi has ip address, not connecting to internet
I have my raspberry pi running on raspbian jessie lite. I have created a hotspot on my windows machine and connected my raspberry pi to the hotspot. The pi has got an ip address assigned to it, but ...
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2answers
3k views
SSH connection refused via ethernet cable
I try to connect to my Raspberry Pi from my Mac via an ethernet cable. I get: ssh: connect to host 169.254.32.96 port 22: Connection refused.
Nmap says this:
Starting Nmap 7.12 ( https://nmap.org ) ...
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1answer
284 views
Inverting iptables interfaces [closed]
I'm building a LAN to WLAN router and I need setting up NAT using iptables.
I don't get the description of the -i and -o command line switches (emphasis mine) in the MAN page:
[!] -i, --in-...
7
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1answer
13k views
iptables: nat table does not exist
I'm trying to do some NAT on my Raspi 2 running Raspbian. But when I try to do anything with the nat table in iptables, I get the following error:
iptables v1.4.21: can't initialize iptables table `...
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84 views
Is there a way to set up a tor-ap and be able to turn tor routing off when needed?
I recently turned my raspberry pi into an AP and am wanting to follow the directions here https://learn.adafruit.com/onion-pi/overview. However, after reading the section here https://learn.adafruit....
