How to define port forwarding I run a server with a web server running as a rootless podman container. This exposes ports 10080 and 10443 because, as a rootless container, it is not allowed to expose ports 80 and 443. So that my website can be accessed from outside, I use ufw as a firewall …
iptables allow host for isolated VLAN I’m having a real trouble trying to do a "simple" tweak in my network. So: there are two sites, A and B and are connected via IPsec and there’s no problem in communication between them. each site has two VLANs, main and guest: main is 192.168.55.0/24 for A and …
What does !^ in csh alias do Note: my shell is csh An ex-co-worker gave me the following command to put in my .cshrc: alias bastion ‘ssh -L !^:<some_ip_address> <username>@<something.com>’ Note that what is in between <> are actual values. Now when I run this on my shell, I get the following error: Bad ! …
Unable to port forward, port 22 on big sur I’ve looked around and forwarding port 22 so I can ssh to my home network externally should be easy, however I’m having issues, can’t seem to solve this from googling. I suspect I have missed something that needs to be done before port forwarding can be …
Strange mysqld process on my system wont let port 3306 be free I am using ubuntu Jammy release and on my system port no 3306 is unusable since I tried ssh based port forwarding on the same to a different machine. Also while running ps -aux it shows a strage process for mysqld with pid …
How to configure port forwarding with nftables for a Minecraft server on Raspberry Pi? Since I’m using a transparent proxy service, I use a raspberry pi as my home router. Its OS is plain Raspbian. Now I’m setting up a Minecraft server on 192.168.2.28, and am exposing it to WAN using NAT. Here’s my /etc/nftables.conf: …
Why does ssh port forwarding fail? In this example: $ ssh -L 8001:192.168.122.4:80 the output give is the default help: usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-B bind_interface] [-b bind_address] [-c cipher_spec] [-D [bind_address:]port] [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11] [-i identity_file] [-J [user@]host[:port]] [-L address] [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port] …
How to access/view local web server via public IP? Good day everyone. I’m running an Ubuntu desktop 22.04. I’m new to linux world for about a month or so. I already configure my router for port forwarding. When I was developing this web app in windows, I got no problem with accessing it via public …
Saving the dynamically allocated port of SSH tunnel There is already a great question and answer here, but I have a different case. I create a tunnel with the following command: $ ssh -N -R 0:192.168.0.16:80 root@164.92.194.26 Allocated port 35007 for remote forward to 192.168.0.16:80 I am getting output about the allocated port, however, when …
Highest performance way to route traffic from IPv4 to IPv6 on Linux? I have a use case where I want to forward certain IPv4 ports incoming into a machine, to to the same ports on another machine that uses IPv6. I assume I can do this with [auto]ssh, but wonder if this is high performance, …
How do I expose a port that an app is only allowing local connections to? An app on linux-based "headless-box-1" is listening for HTTP connections on http://127.0.0.1:7860. Which restricts connections to self. But I wish it was listening for connections from any computer on the LAN. Is there a command I can run on the …
Port Forward in Empty Port. But 'cannot listen to port' And The port is filled Step 1. Checking Ports netstat -tnlpa (No info could be read for "-p": geteuid()=1000 but you should be root.) Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:6443 0.0.0.0:* …
forward remote tcp port to local port I have the following setup: The unit constantly tries to connect to the Remote Server on a specific known port. On the Remote Server, there is nothing but open TCP ports. I want to forward the Remote Server’s port to My Pc and open a TCP Server to …
Forwarding traffic back through WireGuard (Setting dnat for oif wg0, after processing the application) I use WireGuard as a secure communication channel between two servers in different DCs to hide the existence of the end server (server B). I use nftables as a firewall management tool. From public server A, the traffic is forwarded keeping …
SMTP IP forwarding to another machine Apologies if this is a silly mistake this is the first time ive had to set up port forwarding. I have two machines I have one machine set up as a DMZ (192.168.0.67) when all traffic inbound will hit first. I have configured a second machine to be an …
SSH X11 forwarding with port forwarding I have one question about SSH X11 forwarding and Port forwarding. I have: 2 computers running Ubuntu Desktop (not in the same location and local network) called Desktop1 with IP address IP1, the other is Desktop2, IP2. and 1 VPS (Ubuntu Server) with IP address IP_VPS. D1 <——> VPS …
Host PC fails to access Webmin which is installed on CentOS in VirtualBox Webmin can be accessed over SSH after forwarding the port. Now I am trying to access Webmin’s control panel on my computer outside virtualbox but on the same computer, but it doesn’t load. I tried using the same port forwarding settings as …
opening a temporary tunnel I have the following problem: I have a remote machine accessible via ssh which can serve some data through a web interface. I can use OpenSSH LocalForwarding to open a tunnel and start the remote server: ssh user@my.remote.server -L 127.0.0.1:3333:localhost:4000 ./start.sh then, on another terminal (or from GUI), I can start …
How does certbot bind port? Could not bind TCP port 80 because it is already in use by another process on I enabled both 80 and 443. sudo certbot certonly –standalone –agree-tos –no-eff-email –staple-ocsp –preferred-challenges http -m **@**.com -d mycomp.com Saving debug log to /var/log/letsencrypt/letsencrypt.log Requesting a certificate for mycomp.com – – – – – …
What's the difference between address 0.0.0.0, [::] and *? If you run something like ss -tunlp (or netstat -tunlp) you get a list of listening ports. The standard format should be <host>:<port>, eg. 127.0.0.3:5000. But you also see 0.0.0.0:<port> and [::]:<port>. What do these 2 mean? In particular, if you see [::]:22 or 0.0.0.0:22 or …
