All Questions
Tagged with networking 18.04
1,033
questions
0
votes
1
answer
1k
views
Ubuntu 20.04 not able to monitor disk usage via snmp
I've been trying to get SNMP to work for OID .1.3.6.1.4.1.2021.9 on Ubuntu 20 and 22, for reference: https://oidref.com/1.3.6.1.4.1.2021.9
When trying on Ubuntu 18 it does work. Ubuntu 18 uses SNMP ...
0
votes
0
answers
38
views
My internet goes out every few minutes and the resolution is opening "select network" in the menu
This is an intermittent issue and I haven't figured out what causes this but every once in a while my internet will go out every 2 minutes or so and if I open up network settings and go to select ...
- 1
0
votes
0
answers
108
views
How to configure multiple permanent static IP addresses (ipv4 and ipv6) spread across a number of virtual ethernet interfaces in 18.04
I am trying to configure the main eth interface as DHCP, and then create 5 virtual ethernet interfaces, each with a static ipv4 and ipv6 address. What is the correct way to do this? I tried using ...
- 101
0
votes
0
answers
37
views
Xubuntu 18.04.5 LTS BCM4311 Wifi works, but no internet
I have the original version of Xubuntu 18.04.5 LTS. But the same problem on any version of Linux. Notebook ACER Aspire 5310 (BCM4311)
Immediately after installation, I remove the drivers (sudo apt ...
- 1
0
votes
0
answers
33
views
Both ethernet and wifi adapters went 'unmanaged' on 18.04 desktop, what could cause this?
I remotely maintain an 18.04 desktop system for an elderly relative. This weekend I was "away from keyboard" and when I returned, the relative told me they "couldn't get on the internet&...
- 23.9k
1
vote
0
answers
473
views
Upload speed very slow in Ubuntu 18.04.6 while download speed is normal
I bought a new 1GB/s server from OneProvider and installed Ubuntu 18.04.6 on it.
The upload speed from ssh or FTP is very good, but the download speed is about 100kb/s from ssh, FTP and I tried to ...
-1
votes
1
answer
76
views
Can only ping external IPs
I have a headless computer running Ubuntu 18.04. It has until recently been happily operating as a Pi-hole on my wifi (Nest Mesh).
After attempting to install some new bits and bobs on it (Home ...
- 1
0
votes
1
answer
36
views
How do I create a local server instance from a vhd downloaded from Azure?
I'm using Ubuntu 18.04. I need to create a local server instance from a vhd downloaded from azure. So far I have downloaded the disk image and created a local vm. I can log in normally, but the main ...
- 1
4
votes
1
answer
701
views
WIFI - Intermittently disconnects
Not too sure about the issue causing the wifi to intermittently cut off and reconnect - seems like there's an issue with the queue but can't make sense of the rest of the information provided by dmesg....
0
votes
1
answer
383
views
MTU specified in netplan is not applied at boot
My netplan file looks like so:
network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses:
- 169.254.1.1/24
mtu: 9000
After boot the eth0 interface takes the ...
- 419
0
votes
0
answers
98
views
Not able to access server from specific other server
I'm running a VPS with Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0 x86_64) accessible with example000.com.
Since some hours I'm suddenly not able to access this server from my other server example111.com.
...
- 153
0
votes
0
answers
35
views
System broke, most things aren't opening
In my system many apps are not working the terminal fails to start and Settings disappeared from app menu. I tried searching for the
settings app in file explorer and there's only one option in it.
I ...
0
votes
1
answer
451
views
Network interface will not come up, obtain a DHCP lease automatically
I have a minimal Ubuntu 18.04 system. I want one of my network interfaces, eth1, to come up automatically at boot and obtain an IP address from DHCP.
I created /etc/network/interfaces.d/default ...
- 419
0
votes
1
answer
170
views
Ubuntu 18.04 LTS - incredibly slow TCP/IP connection time over ethernet
This problem has recently appeared - last few days. New connections are taking up to 60 seconds. Once connected the up and down speeds are ok IF the requested service hasn't timed out.
I thought I ...
- 203
0
votes
0
answers
1k
views
Unable to see my SFP connection using ifconfig
When I do ifconfig, below is the output, I have the virbr0,virbr1..., and also the vnet 0 - 20. Not sure why I have this, because I just got this server few days ago. I inserted the SFP cable and I ...
- 1
0
votes
1
answer
809
views
WiFi not working Ubuntu 18.04 (with upgraded Kernel 5.19) on Razer Blade 15 eraly 2022
I recently got a new Razer Blade 15 2022 (RZ09-0421PEF3-R3U1). Everything works perfectly on Windows 11, but a whole different story on Ubuntu 18.04. The most important issue is with the WiFi card, ...
- 3
0
votes
0
answers
673
views
Ethernet speed limited to ~500Mbps on gigabit network & internet
I was recently getting the following speeds when using the ookla speedtest cli...
$ speedtest
Speedtest by Ookla
Server: ********
ISP: TELUS
Idle Latency: 1.98 ms (jitter: 0....
- 21
0
votes
0
answers
202
views
Ubuntu Server 18.04.6: No internet connection
My Ubuntu 18.04.6 server is not connecting to the wider LAN and Internet. It IS connecting to my router (via ethernet cable), which is connected to by many other household devices (wired and wireless) ...
0
votes
0
answers
269
views
Ubuntu Server unable to connect to Wifi or Ethernet
I just dual boot my Windows 11 PC with Ubuntu server 18.04, I could not get to the internet by any means. When I run ifconfig -a, it only returns lo. Since I could not get any Internet connection, ...
- 11
1
vote
1
answer
421
views
Multiple NICs on Azure VM, one cannot access the internet
I have an Ubuntu 18.04 VM on Azure with 2 NIC's on the same subnet. Both have public IPs but only 1 can access the internet. I tried to modify the netplan file but can only seem to get one or the ...
- 21
0
votes
0
answers
115
views
no wifi Adapter found in Ubuntu 18.04
Suddenly my wifi is not working and I have tried almost everything but nothing is working for me . Here are some commands I have already tried .
1)lspci | grep Network
No result is showing and after ...
- 1
1
vote
0
answers
5k
views
No internet connection in UTM (Ubuntu 18.04)
I've been using Ubuntu 20.04 via UTM on my M1, and recently installed Ubuntu 18.04 since I needed it.
The problem is that while I had no problem with internet connection with 20.04, there is no ...
- 11
0
votes
1
answer
299
views
Wifi Adapter not Found for Ubuntu 18.04 Lenovo v14-ADA
I have tried many approach to install driver for my laptop, but still nothing have worked. First I try to find my network controller by hitting lspci, then the output came as follows,
Network ...
- 1
2
votes
1
answer
9k
views
Bridge Wlan and eth0
My problem is the following, I am using a pretty complex network architecture for multi robotic operation. One robot is composed of different embedded computers and a switch, making a local network ...
- 21
1
vote
0
answers
915
views
Ubuntu 18.04 server - Network interface name changed after installing PCIe device
I've got an industrial PC running Ubuntu 18.04.6 server which I've been using for over a year now. It has 2 network interfaces, enp1s0 and enp0s31f6, but only enp1s0 is in use. enp1s0 has a static IP ...
0
votes
2
answers
1k
views
DNS not working / How to determine which program/service is defining network configuration?
I have a client ubuntu 18.04 PC which is connected to the internet but DNS is not working. At first I thought I would have to configure the netplan yaml file which I did like:
network:
version: 2
...
- 103
0
votes
0
answers
1k
views
OpenVPN and DNS error
I'm using Ubuntu18.04.6, OpenVPN 2.5.2.
I connect using .ovpn file:
sudo openvpn --config name.ovpn
I am getting errors:
Options error: Unrecognized option or missing or extra
parameter(s) in [...
- 101
-1
votes
1
answer
578
views
ubuntu18.04 srart with err log: R8169 unknown chip XID 641, i cannot connect to the internet
when i start my machine， i can not connect to the internet， here is some information about my machine：
cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.6 LTS (Bionic Beaver)"
ID=...
0
votes
1
answer
2k
views
How to enable split tunneling with L2TP over IPsec VPN on Ubuntu 18.04
My users are able to connect to L2TP VPN without issues but are having problems with the speeds. To resolve this, I'd like to provide them instructions on how to enable split tunneling so they only ...
- 13
0
votes
1
answer
1k
views
Ubuntu 18.04 requires a manual dhclient command for network to work. Why? And how to fix it?
At least since a week ago, my ubuntu 18.04 sometimes does not have internet access. Despite that it shows in the GUI the wifi icon like normal.
Interestingly, dig @8.8.8.8 google.com works, but ping ...
- 1,361
0
votes
0
answers
333
views
Improve stability of Cisco Anyconnect Secure Mobility Client
I'm using Cisco Anyconnect Secure Mobility Client version 4.8.01090 on Ubuntu 18.04.6 LTS.
The VPN works fine for about 10 minutes at a time, at which point the connection drops and the client takes ...
- 101
1
vote
1
answer
1k
views
How To Select A Preferred Ethernet Connection?
I have two Ethernet connections on my Ubuntu 18.04 desktop:
PCI ... wired Ethernet connected to the main network
USB ... wired Ethernet connected to a switch and a local device
After rebooting, ...
- 111
0
votes
0
answers
21
views
My internet connection is randomly interrupted when I use a specific service
My internet connection is randomly interrupted when I use a specific service.
Example:
When I use the terminal to download a new package, the connection is broken.
When I use speedtest.net to ...
1
vote
1
answer
627
views
18.04.6 LTS DNS problems after upgrading from 16.04
I've upgraded my headless Ubuntu 16.04 LTS with ESM (Extended Security Maintenance) server to 18.04 LTS. Everything went great except the DNS settings are wrong. "netplan" is completely new ...
6
votes
3
answers
13k
views
Access WSL2 Ubuntu's application on hosted machine's network
I'm running a app in WSL2 whose distribution is Ubuntu 20.04.
I can access the application in windows browser with Ubuntu's IP.
Now, I want to access this application on my network ( I mean in my ...
- 163
0
votes
0
answers
1k
views
Could not connect to localhost:9000
I am running Ubuntu 18.04 in Windows Subsystem for Linux. When I try to "sudo apt-get update" , I have the following error:
myuser@GA014291L:/mnt/c/Users/myuser$ sudo apt-get update
Err:1 ...
- 101
0
votes
1
answer
6k
views
How to configure vlan of same network with different mac in ubuntu.20.04
I've ubuntu.20.04 VM launched on openstack with 1 trunk port having multiple subports from same network, which maps to 1 parent interface with multiple sub interface. For example if the subnet is 192....
- 101
0
votes
1
answer
596
views
Where are logs stored when connecting (or failing to do so) to a file server?
I have a user running Ubuntu. When they are in the office, connected directly to the local network, they are unable to connect to a file server just down the hall from there office. To do so, he must ...
- 13
2
votes
1
answer
3k
views
No internet after minor update - problem with resolv.conf
Today I updated my 18.04 system, and after reboot I lost all internet connection both through wifi and ethernet cable. Wifi and cable work normally for other devices. No router or network settings ...
- 41
0
votes
2
answers
2k
views
Network Manager fails to restart due to timeout exceeded
My ubuntu 18.04 LTS was working fine. Next thing, wifi symbol disappears and it says "NetworkManager needs to be running" in settings.
So I used restart command (sudo /etc/init.d/network-...
- 1
0
votes
0
answers
57
views
What are the steps to be followed for enabling Internet after installing Ubuntu 18.04?
After installing Ubuntu 18.04, the system is not showing WLAN and network option. Is this the normal behavior?
"No WiFi device found" on WiFi settings.
What should be done to enable Internet ...
- 101
0
votes
1
answer
2k
views
Connect to FTP server with a specific username via the file browser
I'm having a bit of trouble with ubuntu 18.04 . I want to connect to a remote ftp folder using the UI. I managed to get it to work for one location by clicking on 'Other locations' and entering the ...
- 103
0
votes
0
answers
219
views
lsmod/modinfo show rtl8812au driver (recommended for Linksys USB6300 AC1200 Wifi Adapter/Dongle) installed, lshw/nmcli Showing Nothing, Help?
in spite of following exactly the instructions in the following answer:
https://askubuntu.com/a/642812
, although the driver appears to be installed and running according to modinfo, lshw -C network ...
- 1
0
votes
0
answers
2k
views
WSL2 Windows 11 After upgrade - Ubuntu 18.04 on WSL2 has no internet "No Route to Host"
After upgrading the windows 11, my WSL2 Ubuntu 18.04 has no internet access. I get the error "No Route to Host". I double checked my resolv.conf as displayed below:
root@~$ cat /etc/resolv....
- 3,023
0
votes
0
answers
486
views
No internet access without VPN after updating from 18.04 to 20.04
After updating to Ubuntu 20.04 LTS internet stopped working without VPN (I use Cloudflare WARP)
righthaze@desktop ~ ping google.com
PING google.com (216.58.215.110) 56(84) bytes of data.
ping: ...
0
votes
1
answer
430
views
Ubuntu 18.04 Ethernet Unclaimed
I've just installed Ubuntu on my computer and it's refusing to connect to ethernet. I've tried installing new drivers and updating the kernel to no avail.
03:00.0 Ethernet controller: Realtek ...
- 1
2
votes
1
answer
146
views
Connection drops after 2 second. How to reset every service and configuration that may be causing the issue (18.04)?
I am on Ubuntu 18.04.
I have become unable to access internet (or better: I stop receiving data after 2 seconds from the initial connection) from all access points – both wired and wireless – of a ...
- 198
1
vote
1
answer
1k
views
Asus PN50-E1 and 18.04 LTS - No network adapter
So, short and sweet:
I got (for work purposes) a PN50-E1 with an AMD 4700U APU
Everything works well if I install 20.04 desktop
If I try to use 18.04 LTS (desktop or server), the ethernet network ...
- 45
0
votes
0
answers
66
views
Is there a way to add additional HW support to the installer/installation process?
We've got a lab with a variety of systems used for HW validation. The testing is largely automated including OS install (Windows, Ubuntu 18.04, 20.04, RHEL, etc). All our installs and control are ...
- 1
1
vote
0
answers
275
views
Ubuntu 18.04 install rtl8821ce 802.11ac PCIe Wireless Network Adapter
My kernel version is: Linux Speedsters 5.4.0-86-generic #97~18.04.1-Ubuntu SMP Sat Sep 18 03:11:22 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
And my problem is that I can not find the wifi adaptor after ...
- 11