All Questions
Tagged with networking 16.04
1,157
questions
0
votes
1
answer
67
views
Changing dns to OpenDns works only in the current session, not for my child and not after reboot
I configured OpenDns as suggested here (even the final part)
It works immediately after the changes, BUT:
If I switch to the user of my child, it doesn't work anymore
If I switch back to my account ...
- 111
0
votes
1
answer
379
views
Ubuntu server does not accept any request from outside
I have a database in ubuntu server, and it works on server, the port is 5436.However, I can not connect it from outside.
I use ufw order
it lists as below
[17] 5436 (v6) ALLOW IN ...
- 180
0
votes
0
answers
3k
views
TNS:no listener - Installing oracle client on Ubuntu 22.04x86_64
I am currently participating in a project where my task is to configure a connection from an Ubuntu 22.04x86_64 server to an internal Oracle DB server called myOracleDB.
First of all, a ping ...
- 137
-1
votes
1
answer
9k
views
How to add internet speed meter in ubuntu 22.04
I read so many articles and steps for doing it. I have a doubt that doing that steps will bring virus to my ubuntu.can you please guide me how to install internet speed meter in 100% secure way
- 21
0
votes
1
answer
1k
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Keep using ixgbe module after upgrading to ubuntu 20
I have an adopted old ubuntu 16.04 machine that I want to bring to ubuntu 20.04
The machine has a pcie card with sfp connectors. For this, the ixgbe module is installed.
Details:
$ modinfo ixgbe
...
- 265
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 ...
5
votes
2
answers
3k
views
"Your connection is not secure" for every other website [closed]
My father uses an old computer with Ubuntu 16.04 on it. (I cannot update that. He rejects all change. I have made many attempts to make him accept a newer system, to no avail.)
Since a few months he ...
- 153
0
votes
0
answers
998
views
Realtek r8125 2.5Gbps Ubuntu 16.04 only getting 1.25Gbps speeds
I just installed my realtek r8125 NIC into my ubuntu 16.04 server and connected it to a QNAP QSW-1105-5T Switch and then to my Windows machine which also has a realtek r8125 NIC.
However the speeds ...
- 1
1
vote
1
answer
8k
views
What causes "RTNETLINK answers: No such process" when using ifdown command?
I am working with a 4-port NIC and I want to turn off all interfaces but one. I don't know if it is a problem or not, but when I turn off the third and the fourth interfaces with the ifdown command, ...
- 67
0
votes
1
answer
8k
views
Error: Netmask doesn't match route address
I am trying to add a new route in Ubuntu 16.04 by following command:
sudo route add -net 192.168.245.2 netmask 255.255.255.0 gw 192.168.0.200 enp2s0
But getting this error:
route: netmask doesn't ...
- 3
0
votes
0
answers
75
views
Network unstable and slow after upgrade from 16.04 to 18.04
I have recently upgrade from Ubuntu Mate 16.04 to 18.04 as support for 16.04 is running out. Everything went well, except I had no network after the restart. I followed a number of suggestions, the ...
- 1
0
votes
0
answers
47
views
eth0 not enabled after upgrade to 16.04
I've upgraded my ubuntu 14 VM a few days ago (was about time) to 16.04 but now I ran into some trouble. Every time the VM reboots the eth0 link can't be enabled (from log):
Jan 31 16:50:11 hostname ...
- 101
0
votes
1
answer
154
views
DNS not working on 16.04
I'm using an HP MicroServer Gen8 which has two network ports - but have the same issue with both.
I've tried resetting all network-related settings. I then connected using the remaining ifupdown ...
- 101
0
votes
0
answers
211
views
Routing to virtual interface on Ubuntu server
I just created a virtual interface (VLAN 10) on my Ubuntu server; hosts from my network can reach the physical interface; however hosts on my network on VLAN 10 cannot reach the virtual interface IP. ...
- 1
0
votes
1
answer
635
views
Ubuntu 16: Configuring a (trunk) interface w/o IP address
I intend to use one of my Ubuntu 16 interfaces as a trunk, so I don't need any IP configuration on that interface (it'll all be on VLAN-bound subinterfaces). How do I configure it w/o an IP address? ...
- 17
1
vote
0
answers
275
views
It takes minutes to access the network after conneted the hotspot created by Ubuntu
The host machine is Ubuntu 16.04. It connects to the internet using wired way and creates a hotspot using the WIFI module. When another computer with windows 10 systerm connects this WIFI. It will ...
- 111
1
vote
1
answer
568
views
Static IP forcing route to interface that is not connected to network
I am setting up a kiosk type system that some times connects to a specific ethernet source with a static IP and other times connects to a variety of wifi networks via wpa_supplicant. Once the system ...
- 410
1
vote
0
answers
3k
views
ping, ssh work fine - NSLOOKUP gives error ** server can't find xxxxxx: NXDOMAIN
several hundred discussions around this problem, none exactly matching this issue
Mine is a Home network
Two nodes on a Home WiFi network(TOTOLINK)
(N1)maruti(192.168.1.15, bionic,18.x) & (N2)atal(...
0
votes
1
answer
50
views
Wi Fi Problem on Ubuntu 16.04.1. Connecting and Disconnecting continuously
I installed Ubuntu 16.04.1. From that point my Laptop not connection to router (DLink-DWR-116).
It behaves randomly.
Problems I faced:
Some time's it is connecting by restarting network manager ...
2
votes
0
answers
744
views
ath10k_pci wifi adapter present, but wireless settings absent and can't connect to any wifi
I am using Ubuntu 16.04, recently I upgraded packages and since then I am facing the issue of no wifi settings and wifi networks are not visible.
screenshot of wifi settings absent
Please help me out, ...
1
vote
1
answer
4k
views
Wake On Lan not working on AsRock motherboard
I'm trying to get Wake On Lan to work on my Ubuntu server (16.04.7 LTS).
I have an AsRock G31M-GS
I have set WoL on my BIOS
I have enabled WoL (method g) on eth0
I have added a script so that eth0 ...
- 121
0
votes
1
answer
1k
views
TP-Link TL-WN722N driver stopped working
Problem:
I have a TP-Link TL-WN722N external wireless card (basically an Atheros AR9271). It was working fine with my machine until today evening, where a power failure occured. On restarting, it does ...
- 101
0
votes
0
answers
604
views
All network interfaces have disappeared
I have 3 Ethernet interfaces and one WiFi card, everything had worked fine previously until, one day when I turned it on it failed to raise network interfaces. When I ran ifconfig -a all that came up ...
0
votes
0
answers
91
views
No wifi connection after (partial) upgrade from 16.04 to 18.04
I have tried to upgrade Ubuntu 16.04 to Ubuntu 18.04 using Mobile data (Wifi).
After restarting the system my Wifi connection is not working.
System shows all available network connections, but is not ...
0
votes
2
answers
4k
views
Can I force wget to use the secondary dns
I am trying to download something from NVIDIA website on a remote server using ssh. Iran is banned by the NVIDIA website.
My server's DNS servers are:
IP4.DNS[1]: 192.168....
- 642
0
votes
1
answer
1k
views
Ethernet (wired connection) is Unreachable in Ubuntu 16.04
I have a system dual boot with Windows 10 and Ubuntu 16.04.
Windows 10 can access the internet, but Ubuntu 16.04 can't.
I have checked in Windows 10 where WOL is not enabled on the ethernet.
And you ...
- 567
0
votes
2
answers
2k
views
network UNCLAIMED : Lost Ethernet/WiFi drivers after updating to Ubuntu 16.04.6 simultaneously on 2 different computers!
Updated from 16.04.3 to 16.04.6 (over ethernet on one computer, WiFi on the other) and now no ethernet or WiFi, only the loopback.
I am flexible if the solution requires going back to 16.04.3.
I ...
0
votes
1
answer
2k
views
Error configuring static routing using cli
I'm trying to add a static route on my Ubuntu Desktop 16.04 machine with the cli, but with no success. I'm using the classic ip route command: ip route add x.x.x.0/24 via y.y.y.y dev eno1 (hid the ...
- 1,436
0
votes
1
answer
403
views
Accessing virtual machine from local host
After logging onto the virtual machine though putty, I got
Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.15.0-91-generic x86_64)
...
80 packages can be updated.
0 updates are security updates
However, ...
3
votes
1
answer
20k
views
Problem running CURL with the dns option
I'm using curl for a while now to debug my non-prod web services.
When I'm using the --dns-servers option, I always receive an error that this feature was not found:
curl --dns-servers ...
- 1,436
0
votes
0
answers
31
views
How to prevent local laptop to server connection active?
I have a windows laptop in which I have installed ubuntu subsytem. Instead of using Putty, I have installed ubuntu subsytem.
Now through my ubuntu subsytem, I ssh to the server where database is ...
- 133
2
votes
1
answer
448
views
Unable ping own IP, but another Virtual Machine can ping it
I have a simple network here.
2 Virtual machine (ubuntu 16.04) (VMware) and connected with router in GNS3
I only use IPv6 address.
in VM2 I've installed kamailio sip server.
vm1 ifconfig
eth0 ...
- 21
2
votes
1
answer
8k
views
How to stablish a Fortinet-VPN connection on Ubuntu 16.04 (as client)?
Right now the official FortiClient available for Linux lacks VPN functionality.
I need to connect from an Ubuntu 16 system to the VPN of an employer and they only use FortiClient VPN...
What should ...
- 48
0
votes
1
answer
52
views
Wifi is connected but suddenly not working at all on Ubuntu 16.04 LTS
I have installed Ubuntu 16.04 LTS on Lenovo Thinkpad more than a year ago, it seems to be working, having issues from time to time though. For example, I did not manage to " install Update" from "...
- 101
1
vote
0
answers
2k
views
How to install RTL8188FTV driver on Lubuntu 16.04 WITHOUT INTERNET?
I've searched the internet many times but I've just found some drivers that need internet for installation.
I haven't any access to internet on this Lubuntu 16.04 machine.
What's the solution??
The ...
- 41
19
votes
6
answers
28k
views
SSH fails with connection timed out - in VPN and hangs here "expecting SSH2_MSG_KEX_ECDH_REPLY" + Ubuntu 16.04.6 LTS
Raised bug -> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874257
SSH timeout issue, once connect to VPN.
Connecting via putty fine. No changes made before.
VPN established by open-...
- 331
0
votes
1
answer
580
views
Ubuntu 16.04.6 Wifi not being detected on new HP laptop
I just installed Ubuntu 16.04.6 for work on a new laptop. I can get internet through an ethernet connection, but there is no wifi being detected at all and no additional drivers to install. How can I ...
1
vote
0
answers
478
views
What is the difference between dhclient.leases and dhclient."interface-name".leases?
I'm trying to setup DHCP on a server, and get the IPs from another client machine.
Before requesting a new IP from the DHCP server on a client, I listed all the files I had in the var/lib/dhcp folder,...
- 123
0
votes
1
answer
2k
views
can someone help me with netplan removal from a 18.04 LTS Desktop
I have 2 computers an AMD based desktop with Ubuntu desktop upgrades since 12.xx to 14.xx to 16.xx and very early on to 18.04 LTS. The network interface cannot be configured and my network connecttion ...
1
vote
0
answers
1k
views
High load average number but low CPU usage - how to bring the load down without a reboot?
I maintain over a dozen xubuntu (16.04.6) linux servers for my lab. All of them are interconnected via nfs/autofs/ldap services to form a distributed cluster. It has been working fine, but two days ...
- 387
0
votes
0
answers
32
views
No Internet connectivity on Ubuntu LTS 16.04
I am using Ubuntu LTS 16.04 as a VM on windows 10 but i cannot seem to get any internet connectivity. I cannot ping 8.8.8.8 (network unreachable) and the network manager says 'the system network ...
1
vote
0
answers
340
views
dhclient disconnects after few seconds
I have been fighting with the interface of my ubuntu 16 lts server to connect to a wifi on startup. Currently I connect using wpa_supplicant and dhclient.
If I do both manually, I get connected ...
- 111
0
votes
0
answers
136
views
Can't Access Windows 7 Shared Folders Anymore
I accessed Windows 7 Shared Files through the Files System in Ubuntu 16.04 and it worked fine.
But, when I tried again, I can't access Windows Shared Files anymore. I have a message like:
Failed to ...
- 161
0
votes
1
answer
140
views
Ubuntu 16.04 DNS resolving is broken
I have a post going on Ubuntu Forums about this issue but the it has stalled and the issue isn't resolved so I'm trying to tap in to the ask community for help.
I had a perfectly working 16.04 dual ...
0
votes
0
answers
302
views
How to force certain applications to use certain gateway?
I have the following setup:
______________
| |
| Ubuntu 16.04 |NIC1---(WIFI)---ISP1 (slow, unmetered)-----
| |
| game |
| |
| cloud sync |NIC2---(...
- 183
1
vote
1
answer
1k
views
Scan for wireless devices
I am looking for a way to search for WIFI devices (such as phones, other computer etc) using either a regular computer running Ubuntu or similar, or a router running openWrt. I am not looking for ways ...
- 41
1
vote
0
answers
404
views
Permanently disable hotspot in Ubuntu 16.04 and 18.04
Our company is totally open-source. Mostly we work on Ubuntu 16.04 and 18.04. Most of our employees have turned on the hotspot in the network settings. We want to block all these hotspot connections. ...
- 31
0
votes
1
answer
619
views
Wifi turns off automatically in Ubuntu 16.04 if speed goes above 150 Mbps
I have 5G internet connection. Speed is always between 200 - 300 Mbps. When I am downloading something and download speed goes above 150 Mbps, WiFi turn off. It doesn't even show available WiFis. ...
- 67
0
votes
0
answers
227
views
Netgear A6100 wireless adapter not working on ubuntu 16.04
I am using Netgear A6100 wireless adapter to connect my desktop to the wi-fi network. I am using a community wifi. On desktop, I have Ubuntu 16.04 with kernel version 4.15. I copied the driver from ...
- 1
0
votes
1
answer
557
views
Can I use kernel version 5.2+ on Ubuntu 16.04?
The question is as the title says: Is it possible to use Kernel version 5.2+ on Ubuntu 16.04? From a quick search, I find multiple ways to do it on Ubuntu 18.04 and forward, but nothing regarding 16....
- 33