#port-forwarding — Public Fediverse posts

“What are the dangers of port forwarding?”

Oh sweet child, are you an adult? Cause this needs a serious discussion. Let’s talk… and minors please leave the room.

You’ve established a gloryhole. Anyone and everyone will be all over that new open port. You better have protection, anti-virus, and a segmented network.

If they find a vulnerability, they’ll manage to be in the room with you. They now have your machine. They’ll look and scan everything on that machine, everything on the networks it’s attached to. They’re gonna find the goodies. They’re going to violate your network, your machine, and all the machines attached.

Are you ready to protect and isolate an infected machine? Are you keeping that machine patched and services up-to-date? AI is here, and it’s automagically violating. This isn’t a fun time.

So next time someone wants a port forwarded, ask them if they’re ready to establish a gloryhole. Tell them they aren’t ready. Tell them to rent a VPS with a cloud provider before you open a gaping hole in your network.

#sextalk #portforwarding #eww

A Practical Guide to SSH Tunnels: Local and Remote Port Forwarding

https://labs.iximiuz.com/tutorials/ssh-tunnels

#HackerNews #SSH #Tunnels #PortForwarding #Networking #Security #Guide

@goetz Your comment went in the right direction, it is called "pinhole" in upnpc and works like it should once you got that and the right parameters. - Sorry for not reading the manual in the first place 🤦‍♂️

Example and explanation:
upnpc -6 -A "" 0 @ 65432 udp 600

-6 use IPv6 (recommended)
-A Add Pinhole
"" Any remote IP
0 Any remote port
@ use "local LAN address" as internal IP (works for me, replace by explicit IPv6 for more control)
65432 chosen internal port
udp protocol
600 make it last for 10 minutes (you can not use 0 here!)

unpnc -l (lower case L) lists those pinholes together with the IPv4 port forwardings.

#ipv6 #miniupnpc #fritzbox #portforwarding

@dreua

We are speaking about IPv6 there is no port opening/forwarding forseen.
You need to manipulate the ACL.
Unfortunately the ACL on an Fritzbox is limited to open a port for a LAN host for any source address.

#ipv6 #fritzbox #portforwarding #miniupnpc #upnpc

Another question to the #ipv6 bubble:

Did any of you succeed to create a v6 port forwarding/opening with the [mini]upnpc tool? I'm trying with a FritzBox here but would be interested if it worked with other routers as well.

(Voting for fun, please do also comment!)

#fritzbox #portforwarding #miniupnpc #upnpc

Two free services which I used are #DuckDNS to give me a #URL and #LetsEncrypt to provide #SSLCertificates. I had to open up a #Port on my #Router for #PortForwarding and to make sure that the #HomeAssistantGreen is attached to a fixed IP address locally.

There are several online tutorials to perform this operation and I would advise anyone wishing to do so to look at them carefully before proceeding as a misstep can lead you to locking yourself out of your own hub.

#GNU #Linux #HAOS

SSH Tunneling and Port Forwarding Techniques: A Comprehensive Guide

In this article, I cover:
* How SSH tunneling works under the hood
* Local, remote, and dynamic port forwarding techniques
* Real-world use cases (databases, internal services, pivoting)
* Security risks and hardening recommendations

https://denizhalil.com/2026/02/02/ssh-tunneling-port-forwarding-guide/

#CyberSecurity #sshtunneling #portforwarding #NetworkSecurity #Linux #RedTeam #BlueTeam #Pentesting #InfoSec #securityengineering #EthicalHacking #ITSecurity

📬 Tailscale Funnel ermöglicht das Port-Forwarding bei Mullvad
#Datenschutz #hideme #Mullvad #Portforwarding #SplitTunneling #TailscaleFunnel #UserspaceNetworking #VPNLösung https://sc.tarnkappe.info/20aa6b

CGNAT khiến bạn không thể port‑forward dịch vụ tự host. Bài viết giải thích CGNAT là gì, khác biệt với NAT thường, và cách bypass nhanh bằng công cụ mã nguồn mở, giúp mở web server, cloud riêng ngay. #CGNAT #PortForwarding #SelfHosted #Mạng #CôngNghệ #Tech

https://www.reddit.com/r/selfhosted/comments/1qgzs4e/exposing_services_behind_cgnat_the_easy_way/

QtNat – Open you port with Qt UPnP

http://renaudguezennec.eu/index.php/2026/01/09/qtnat-open-you-port-with-qt/

#HackerNews #QtNat #UPnP #Qt #Networking #OpenSource #PortForwarding

... ich hab mir jetzt #Vaultwarden auf den Server hier zu Hause installiert (mit #Reverseproxy auf'm root und #autossh zwischen den beiden - ja, ich mag autosssh und geb ihm gern den Vorzug vor hackeligem #Portforwarding und #dyndns 🤷‍♂️ )

Bin mal gespannt, ob das "schöner" arbeitet als #Passwords in der #Nextcloud. Das ist doch etwas umständlich für nicht so affine Familienmitglieder.

OK, #tailscale works together with #pihole , I'm very happy. It is also installed on my #synology #NAS

Next step: disable all Synology-related #portforwarding on my #router (especially 5000, 5001 and 6690 for Synology Drive).

I can't understand how to use my #DSM without those ports being forwarded. Do I need to autorise them somewhere? How does it work in conjunction with #QuickConnect or synology.me ?

Thanks!

🚀 Wow, groundbreaking news from 2025: Using aged Raspberry Pi with #Tailscale is...useful? 🤔 Apparently, discovering this decades-old tech marvel is like finding out water is wet. 🌊 But hey, at least there's a riveting tale of overcoming #CGNAT and the epic conclusion that port forwarding is hard. 🙄 Bravo! 👏
https://blog.6nok.org/tailscale-is-pretty-useful/ #RaspberryPi #PortForwarding #TechNews #HackerNews #ngated

Túnel SSH port forwarding: Local, remote y dynamic https://blog.elhacker.net/2025/01/tunel-ssh-port-forwarding-local-remote-dynamic-putty.html #portforwarding #secureshell #Networking #tutorial #manual #tunnel #putty #ssh

@falk_ @Ann_Effes Wenn Du Hardcore magst: auf einem (alten) Laptop Linux mit #hostapd aufsetzen - und dann lassen sich mit #iptables schlimme Dinge (u.a. #NAT, #PortForwarding) tun 😏

I do some things that don't want to appear to be from my location (and no, it's not [entirely] what you think).

But #CentryLink is blocking my ability to connect to my preferred VPN provider. That seems to run against the grain of #netneutrality really large way.

(Oh, not just my VPN provider of choice, but even #protonvpn or #torguard just get routed to the void... I see a #portforwarding trend developing)

Video: Selfhosting mit ownCloud

Bei ownCloud handelt es sich, ähnlich wie bei Nextcloud, um eine Datei-Synchronisationslösung, die aus einem Server- und einem Client-Teil besteht. Der Serverteil kannst du bei dir zu Hause im Selfhosting betreiben.

#ownCloud #Nextcloud #Selfhosting #SelfHosting_Lösung #NPM #NGINX #Nginx_Proxy_Manager #SSL #Router #Portforwarding #Tunnel #Dateisynchronisation #Sync #Linux

https://gnulinux.ch/selfhosting-mit-owncloud

Did you know that by using port forwarding, you can access services on your devices from anywhere in the world? 🧐

We're proud to offer port forwarding as a feature to enhance your VPN experience. Whether it's for remote access, gaming, or hosting services, see how you can benefit from AzireVPN port forwarding: blog.azirevpn.com/port-forwarding

#AzireVPN #portforwarding #VPN

#Linux: Create Encrypted Tunnels with #SSH #PortForwarding
If you are looking to create a encrypted tunnel from one Linux instance to another, the bet choice is SSH port forwarding. https://thenewstack.io/linux-create-encrypted-tunnels-with-ssh-port-forwarding/

#PortForwarding in #VSCode! No need for third party tools like #ngrok.

TIL Duck DNS
https://www.duckdns.org/

Also "Port Forward"
https://portforward.com/

#dns #dynamicDNS #portForwarding

📢 New Promo Post Alert! Unveil the power of port forwarding with our comprehensive guide on TorGuard's Anonymous VPN and Private VPN Cloud service. Get started with 60% off on our plans plus six port forwards. Secure your digital world with our robust WireGuard service. More details here:
https://blog.torguard.net/introducing-torguards-new-port-forward-sale-empowering-secure-remote-access-to-local-resourcesd-2/
#TorGuard #VPN #PortForwarding #Security #Promo

📬 MullvadVPN: Keine Unterstützung mehr für Port Forwarding
#ITSicherheit #Kurznotiert #Mullvad #MullvadVPN #MullvadVPNNetzwerk #PortForwarding #Portweiterleitungen #VPN #vpnanbieter https://tarnkappe.info/artikel/it-sicherheit/mullvadvpn-keine-unterstuetzung-mehr-fuer-port-forwarding-275662.html

Having a #CrazyIdea right now.

Thinking about hosting some pages on my smartphone...

https://megaf.info/ is running on my Android with #nginx

Using #apache2 on #debian as #reverseproxy

#linux is crazy, isn't it? Amazing what you can do with #ssh and #portforwarding

Having some ideas for #loadbalancing now with #haproxy maybe, having copies of the website in several places.

A copy on a #raspberrypi, another copy on my #smartphone, perhaps another one on a free VPS tier or something.

You know when you almost don't want to try to fix something because you just know the attempt is going to be a time sink and you question whether it's really worth the time? Tonight it's #P2P clients, #portforwarding, #firewalls, #VPNs and very questionable download speeds 😑

How to defend my home lab from bots

https://security.stackexchange.com/questions/268977/how-to-defend-my-home-lab-from-bots

#denialofservice #portforwarding #nginx

How to Port Forward on Your Router

Screenshot of a port fowarding router screen with application name, protocol, port number, IP address, etc Port Forwarding (or port mapping) allows external traffic from the internet to connect to a device, like a computer, on a private network. Say you want to host a Minecraft server for your friends on […]

https://gadgeteer.co.za/how-to-port-forward-on-your-router/

https://gadgeteer.co.za/how-to-port-forward-on-your-router/