All Questions
Tagged with networking ubuntu
1,631
questions
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FTP passive server setup works when it shouldn't work
I've set up vsftpd server (version 3.0.5) in an Ubuntu Server 24.04 box.
No pasv_min_port nor pasv_max_port settings in vsftpd.conf. Except port 21, no port forwarding in router.
To my surprise, this ...
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1
answer
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10 gig PCIe network card won't come up unless onboard 2.5 gig card is connected
I recently acquired a zimacube - its a N100 based NAS system. I've wiped the preinstalled zimaos and run a minimal install of ubuntu server 24.04 and made the usual changes I do on my builds for ...
- 130k
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How should I configure OpenVPN from gateway server to private server?
Seeking a bit of guidance on how I should set up my OpenVPN tunnel from client -> gateway server -> home server.
Right now I'm running an Ubuntu 20.04 server on my home network. In order to
...
- 101
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52
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No available connections in WSL2 + Ubuntu + KDE
I use:
Windows 10 Pro (ver. 22H2 19045.4529)
WSL2 (wsl --set-default-version 2)
Ubuntu 22.04
KDE Plasma 5.24.7 (sudo apt install kde-plasma-desktop)
Kernel 5.15.153.1-microsoft-standard-WSL2 (64-bit)
...
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2
answers
86
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How to fix bridged VirtualBox ethernet setup with the network config on the ubuntu guest system?
On windows 10 I have a ubuntu VirtualBox running and I have two ethernet interfaces on the windows host:
"Ethernet"
"WLAN"
I now want to connect these two real ethernet devices ...
- 442
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1
answer
40
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How to define the network settings inside a ubuntu virtual machine inside VirtualBox?
On windows 10 I am running a VirtualBox with an Ubuntu OS inside, and I seem to have issues to set up the network inside. ip addr show shows the following output:
while the network settings is empty!
...
- 442
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votes
1
answer
32
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SSH timeout over WAN
I have an openssh server set up on my homelab that I want to be able to connect to remotely. I have forwarded the port and tried to connect to it on LAN using the public ip of my homelab. However I ...
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117
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Problems with Ubuntu 23.10 on Asus Vivobook 16(X1605VA-MB957WS) [closed]
I'm using Ubuntu 23.10 on Asus Vivobook 16(X1605VA-MB957WS) and have the following problem:
The wifi card in the laptop Mediatek wifi card whose driver doesn't support the kernel of Ubuntu. So I don't ...
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1
answer
88
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Connect IP camera to switch to Ubuntu laptop, no external router
I have a Swann IP Camera connected to a PoE unmanaged switch. The switch is connected directly to my Ubuntu laptop with an ethernet cable. There is no wifi involved and no router - no other devices ...
- 121
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36
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Cant ping or ssh ubuntu server locally, server can ping websites
Installed ubuntu server and openssh on old laptop installation went well. Settings good, all firewalls down, ssh active BUT still no machine can ping server n server can ping machines. Tried pinging ...
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35
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Layer 2 WiFi-Eth Bridge Not Forwarding DHCP Requests
I’m running Ubuntu 64-bit Server on a Raspberry Pi 4B. I have a USB-WiFi dongle with WDS/4addr/AP mode enabled that is connected to my gateway. I then have a Layer 2 Bridge setup using iproute2 that ...
- 101
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1
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279
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How to connect to MySQL on WSL Ubuntu from the Windows host?
I am trying to connect to the MySQL server on my WSL2 Ubuntu 24.04.
I created a user in the following way inside Ubuntu:
CREATE USER 'myuser'@'localhost' IDENTIFIED WITH mysql_native_password BY '...
- 383
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85
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LAN Networking - Local DNS Name not Working in Windows Browser
I have a home server (running Ubuntu, which I named "lenovo") that runs a couple of HTTP servers. These HTTP servers are accessible to other clients on my home LAN. They are always ...
- 1,804
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61
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Network cant be reached in any way with weird apparmor behavior
I compile apparmor from sourc 4.0.0~alpha2-0ubuntu5 amd64, and was trying compile too gui apparmor https://github.com/jack-ullery/AppAnvil, and it's weird becouse i turned off and disable with ...
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1
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189
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Set wsl2 to use host nameserver
I'm using wsl2 on Windows 11, and I recently encountered a problem where when I change networks, the wsl2 dns (nameserver at resolve.conf) address doesn't update, to match, and there for cannot lookup ...
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200
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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&...
- 239
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41
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PTK and GTK where are they stored?
So I know for unicast traffic PTK is used to encrypt and obtain ciphertext; and for multicast traffic GTK is used to encrypt and obtain ciphertext. I know PTK is produced at a 4 way handshake, and ...
- 105
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1
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227
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Temporary failure in name resolution - pfSense + Ubuntu
I have 2 VMs on Hyper-V:
pfSense
Ubuntu Server 22.04
The pfSense VM is connected to 2 virtual switches - External WAN and Private LAN, which acts as the internal switch for the rest of the VMs.
The ...
- 383
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47
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How can I make the virtual internal NAT switch work on a Hyper-V VM?
I didn't want to use the Hyper-V default network switch, because the IP address keeps changing, so I read that I need to create a new static internal switch.
I then created a NAT switch using the ...
- 383
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79
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Blocking [IPaddress:8080] on nginx
I have an app working on port 8080 perfectly with the domain desh.onecloudhelper.com and now when I hit the Public IP address of the Server, I can still view the same app running using the server's ...
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Find source of bandwidth cap
Good day!
There is a group of Ubuntu 22.04 LTS workstations at work that me and my coworker use to run different kinds of jobs. Both me and another coworker are sudoers on the machines, and we are ...
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1
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395
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Ubuntu unable to join AD
I have setup an AD server in my private network. I can successfully join the domain from windows PCs. But when I try to join my ubuntu clients (ubuntu 23.04) I get errors that get me nowhere on google....
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105
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tun/tap always linkdown and no packets arrives
I'm trying to use bmv2(a software switch) to control the whole traffic flowing from the host to the Internet. I've learnt that tap can help to realize it.
I use tunctl to generate a tap. However, the ...
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136
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How to set up port forwarding for torrenting with WireGuard VPN on VPS?
I have a VPS (Outside my home network) running a WireGuard VPN (PiVPN + Pi-hole+ Unbound), and I'm trying to set up port forwarding for improved torrenting performance (like what services such as ...
- 63
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153
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iPhone cannot reach local server by IP address, unless server first pings iPhone
My desktop development machine is Ubuntu 22.04.3 LTS running apache2 as a web server. My iPhone is an iPhone 12 Pro running iOS Version 17.3.1. UFW is disabled on the Ubuntu machine. I have only one ...
- 11
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49
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Network configuration with 3 Oracle VirtualBox VMs
I have a requirement to create 3 VMs and configure the machines as below :
two machines with their distinct networks
third machine contains above two networks that my client can communicate to both ...
- 1
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2
answers
80
views
Unable to connect to a raspberry pi4 using SSH via Mac
So I just set up a fresh install of Ubuntu Desktop 23.10. I used the OS Customisation options in the Raspberry pi Imager program. There I set SSH to enabled.
I then mounted the SD card after it got ...
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1
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128
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Can I set up a 'software' switch in Ubuntu instead of a bridge with Netplan?
I'm currently building a new version of my DIY router, I run Ubuntu 22.04 LTS with a minimal install, and run firewalld on top of it - and the newer hardware I run has a 'mix' of different port speeds ...
- 130k
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1
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73
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Ping Issue Over LAN After "Suspend" - "Destination Host Unreachable"
I am running into an issue when pinging my desktop PC from my laptop (Lenovo X1 Carbon).
Both machines are running Ubuntu 22.04
Both machines are connected using wifi
The issue starts to happen after ...
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1
answer
163
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Misconfigured files on an emulated SSH server and now ping, traceroute, and Docker are not working on my host VM. (SSH, apt and browser still work.)
TLDR: On a class-assigned virtual machine, ping traceroute and the original script used to access a Docker container/emulated VM stopped working after exiting a SSH session with the emulated VM. This ...
