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0 votes
0 answers
107 views

Setting up reverse DNS for home email server with IPv6 on Linux Ubuntu 22.04 or Debian

I'm trying to set up an email server at home using Ubuntu 22.04 and IPv6. I would like to configure a reverse DNS for my IPv6 address to ensure reliable email delivery. I've followed this guide to set ...
Felipe S's user avatar
0 votes
0 answers
200 views

Ubuntu 22.04 receives an IPv6 address under the same Wi-Fi router but is unable to access IPv6 websites, while Windows 10 behaves correctly

In my office network, I have a TP-LINK wifi router. All the ipv4 network works quite well. In the setting of the ipv6 in the wifi router, it is set as the "bridged" or "pass through&...
ollydbg23's user avatar
  • 239
0 votes
0 answers
177 views

Why do my Ubuntu 22.04 Hyper-V virtual machines show two network adapters by default?

Can anyone help me understand why Ubuntu is showing two network interfaces? I've only added one to the Hyper-V VM settings. However, I am using SR-IOV (if that is anyway related to this question). I'd ...
Daniel's user avatar
  • 101
0 votes
0 answers
61 views

Looking to fix slow (0.42Mbit/s) upload speed on personal hotspot

Webpages are either not loading at all, or taking very long to load which I believe has to do with very slow upload speed: Testing download speed.................................................. ...
jwielink's user avatar
0 votes
0 answers
198 views

Is it possible to create a UDP/TCP reverse gaming tunnel?

For reference, I don't have much experience in the routing/networking world. I have a gaming server hosted on my desktop running in Linux Ubuntu headless 22.04. it's running on a local IP something ...
Giuseppe Carbone's user avatar
1 vote
0 answers
39 views

IPtables doens't block client to client communication

I'm working on a project with my fellow students, and we've discovered a vulnerability in a IP camera. This camera uses port 8554 for the rtsp protocol (it's unauthenticated). I want to block this ...
Dracolly's user avatar
1 vote
0 answers
666 views

Make FRP get the full HTTPS on VPS with Nginx

I have a VPS of V2Ray, and V2Ray is configured as "WebSocket+TLS+Web". (FRPS) VPS: At present, three software V2Ray, Nginx, and FRP are installed on VPS. VPS has the domain name provided by ...
BGP-OL's user avatar
  • 11
1 vote
1 answer
355 views

Black hole output interface for tcpreplay

I'm using a command line like this to replay a huge PCAP file at high speed - I'm benchmarking various aspects of tcpreplay: sudo tcpreplay --mbps=1000 --intf1=docker0 linuxbig_log.pcap As I don't ...
Ken Y-N's user avatar
  • 124
1 vote
1 answer
883 views

SSH client connection delay on LAN when Windows Firewall is enabled

The problem appeared once I upgraded my dev computer to Win11, which was running Win10 before that. My local server is running Ubuntu 22.04. Win11 ssh clients: putty, WSL2 ssh, both experience 20 ...
GatorSU's user avatar
  • 11
1 vote
1 answer
9k views

Connect the WSL2 instance with the specific vEthernet Switch

My WSL2 instance is currently connecting via Ethernet adapter vEthernet (WSL) to the Internet. Can I enable it to use the Ethernet adapter vEthernet (Default Switch or another) instead? Currently, ...
GianniTee's user avatar
0 votes
0 answers
2k views

Ubuntu 22.04 multiple virtual interface on one NIC

I'm reading this instruction, but it seems to be broken for Ubuntu 22.04. I want to have an self assigned static IP address and a DHCP given IP address using one network interface. How can I define ...
Parsa Noori's user avatar