Questions tagged [server]

Questions related to Ubuntu Server, and server-related packages.

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I want to make preseeded image on windows

first, I have a pc with windows 10. second, I have no hdd space for virtual (only near 1gb) on windows pc. third, I have a empty machine that has no keyboard, no monitor. forth, I want to install ...
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63 views

How to find out what's executing apt.systemd.daily?

In Ubuntu cloud server images, apt update/upgrade is performed from different services, causing locking issues. How do I find out what is exactly invoking apt-daily? A ps aux --forest doesn't tell ...
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After Apache Re-installation, Browsers Giving ?reload in URL

Ever since I reinstalled Apache recently, my browsers (both Firefox and Opera) show ?reload after the URL in any of my local development sites when the page has been reloaded, as I must do when ...
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1answer
88 views

Puppeteer on Ubuntu 16.04 doesn't work

Is it possible to run Puppeteer on Ubuntu Server 16.04? I get this error. (node:23213) UnhandledPromiseRejectionWarning: Error: Failed to launch the browser process! /root/bin/node_modules/puppeteer/...
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2answers
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Where is mysql's configuration file in ubuntu server 18.04

I recently installed MySql Server 8.0.19 on and EC2 (t2.micro) instance running Ubuntu 18.04. I'm trying to find the MySql configuration file that's like the my.ini on Windows. I've looked through ...
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DynDns is not reachable from own network, but works with proxy

I have setup an ubuntu server with a web server i want to port-forward. I tried accessing the IP over proxy and it worked. I have set a dyndns and over a web proxy this worked too. But when i type it ...
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3answers
4k views

Why I get “tar: Cowardly refusing to create an empty archive”? when trying to backup the whole server

I am new at ubuntu and dealing with servers. I use Ubuntu 16.04 x64. I want to have a backup for my entire system, So I followed this video https://www.youtube.com/watch?v=KTayZIou-1M I type this ...
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1answer
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Need Help on Ubuntu Server 18.04.1 Static Routing

I'm a newbie when it comes to Ubuntu Server. And I am currently having a difficult time configuring a Static Route. I have an Asterisk Server Hosted on my Ubuntu Server Machine, It has 2 NICs enter ...
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RAID 1 - mdadm or btrfs?

I want to create a RAID 1 array of two (inexpensive) HDDs, in order to keep some rarely accessed data. I have thought about two main ways to create it: using mdadm using btrfs I've read about ...
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How to forward all local SMTP requests on port 25 to a remote SMTP server on port 587

I'm trying to solve a problem with a bulky program that is, for some reason, only sending email over port 25, even when port 587 is specified. In this answer, someone suggests using the windows ...
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PM: hibernation entry

I have a small domestic server (with Ubuntu 18.04.4 LTS), it works well but once a month more or less, it goes off, it's not serious but I wanted to try to understand what the cause was. I have opened ...
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Why is port 22 showing connection refused when logging in using Ethernet?

I have been facing a problem login into our server every time I switch from Wi-Fi connection to an Ethernet connection on my laptop. Using my laptop, I can easily connect via Wi-Fi but the problem ...
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31 views

Where can packages such as the CVE'd apache2-bin=2.4.18-2ubuntu3.10 for Ubuntu 16.04 be installed from

I'm writing a script which uses the output of apt list --installed to install the same package version on a fresh VM install of (un-upgraded) 16.04. The purpose is to test upgrade procedures, by ...
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28 views

How to Host ASP.NET Core on Linux with Nginx?

I want to host my ASP.NET Core app on my Linux Machine so that others IPs from my land can access my websites using Nginx.
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Tomcat 6 on Ubuntu 18.04

I upgraded Ubuntu Server 16.04 LTS to Ubuntu Server 18.04 LTS. However, Tomcat 6 isn't working. There are specific things that I have to implement using Tomcat 6. Are there workarounds to get Tomcat 6 ...
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16 views

SSH script to make a file in a folder inaccessible if it is opened previously and make it readable when closed

I have files in a folder and I am accessing those files via sshfs through remote locations. I just want to know if there is a way to make the files accessible by only a single user i.e if some one ...
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1answer
25 views

How to scroll in Ubuntu Server 18.04.3?

I have recently installed 6 Ubuntu Server 18.04.3 VMs to test a private blockchain network. I use Hyperledger Besu as my ethereum client to do the same. However, there have been some issues lately ...
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2answers
175 views

Ubuntu 18.04 DNS resolution fails after a while

When I ping google.com on my Ubuntu 18.04, it gives me ping: google.com: Temporary failure in name resolution I would then proceed to run sudo service systemd-resolved start My /etc/resolv.conf ...
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17 views

Ubuntu 16.04 Server causes entire LAN to flap intermittently when connected

Machine: Dell Precision T5600 Server OS: Ubuntu 16.04 Server Programs running: Eve-ng, Apache web server on port 591 instead of 80 I've ruled out the following: -- No conflicting IP's on the (3 ...
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30 views

Ubuntu S-nail with Gmail- SMTP Unathorized SignIn

I am trying to use s-nail with gmail smtp server to send mail from my aws vps. With outgoing firewall being opened to 587, I believe the error I am getting is due to my gmail account not recognizing ...
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Ubuntu 18.04 DESKTOP Unattended PXE installation, is it possible?

I've been doing PXE boot installations for years on most Linux flavors, Mostly server versions. But I can't seems to be able to PXE boot with fully unattended installation of Ubuntu 18.04 Desktop ...
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1answer
61 views

apache2 not starting in ubuntu [duplicate]

I tried to do systemctl start apache2, then it shows no error. But when I check its status, it’s still inactive. How to resolve this? The output of the status follows: apache2.service - LSB: ...
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Samba issues - seems to be working, nothing can connect

Ubuntu 18.04LTS Samba version 4.7.6-ubuntu Issue: Win 10 and Android devices can see the share, but when I connect I get an error, the most helpful of which is that in ESFile explorer on Android: ...
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2answers
40 views

How to use Ubuntu 19.10's integrated DLNA server without GUI?

I have a NAS running Ubuntu Server 18.04 with minidlna. Minidlna has been unmaintained for a long time and now it kind of sucks. I read that 19.10 has an integrated dlna server, but I couldn't find ...
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1answer
58 views

Ubuntu Server image with predefined user and ssh key for mass deployment

I need to deploy many systems with an ubuntu installation. I have an Ansible script that installs all the software I need, but before that I need to get ubuntu on these systems. So I want to create an ...
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Ubuntu Server 18.04.3 LTS cant get ethernet connection

I have been all morning trying things, but right now I am stuck with netplan configuration, I have followed several tutorials on how to do so but I never get to ping anything. my current config is ...
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20 views

Iitables prerouting

i want to redirect all request from the port 80 to 8081 and then in server on 8081 port i want to proxy request main server on port 80 (programatically):)) So, this command work - sudo iptables -A ...
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1answer
44 views

How to pernamently change MAC address on ubuntu server 18.04?

I want to permanently change MAC address of my network card on Ubuntu 18.04 LTS server, so I tried to follow some internet tutorials as well as similar answers on here, but they seem to all be for the ...
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28 views

local domain name not resolving on other devices

I installed docker and run the following command. docker run --restart=unless-stopped --name=openspeedtest -d -p 80:8080 openspeedtest/latest Now i can see a page like http://openspeedtest.com/Get-...
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1answer
94 views

Network problems in Ubuntu 19.10

I have installed server 19.10 and the did the following: sudo apt update sudo apt upgrade Then I did a reboot I then did sudo apt-get install ubuntu-desktop All seems to go well Then I confirmed ...
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Ubuntu 18 not replying on ping from another network

I’m struggling with an issue on one Ubuntu server 18.04.1 LTS. This server has IP 192.168.0.2 on network 192.168.0.0/24. This server is pingable (and accessible) from all devices from that network. ...
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Make localhost GUI available with IP of host

I have a headless Raspberry Pi running and want to set up the synchronizing service Syncthing. This service provides a browser-based GUI which is accessible via localhost:PORT. Obviously, this only ...
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1answer
58 views

Is it possible to turn off Ubuntu Server's GUI Screensaver

I do not know how to properly explain this but i'm using Ubuntu Server to run RetroPie without overhead of Ubuntu Desktop. Basically, when Ubuntu Server is running in non-text mode, after around 10 ...
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36 views

SSH continue to ask for password prompt

I appreciate this is a recurring question, but I'm really struggling to get my SSH connection password-less irrespective of the many threads and changes I've done so far. I do remember this was once ...
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Ubuntu distributed JDK and TCK

I searched quite a bit to find out if there are any online documents related to this. All I could find was RedHat/CentOS OpenJDK binaries were tested against TCK and explained here: https://access....
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2answers
808 views

Raspberry Pi 4: New official Ubuntu Server 18.04.3 64-bit is not booting

I was waiting for official instructions on ubuntu.com for installing Ubuntu LTS on my Raspberry Pi 4 (4GB edition). Since a few days there is a new site/downloads with official support for the ...
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1answer
32 views

Port forward localhost - workaround

I need to access to my localhost from the Internet. I used to map my localhost to a port on my router and then to port forward it. But since I don't have the privileges to access my router, or at ...
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25 views

Xubuntu no sound when ssh or vnc

I have a NAS running Xubuntu 18.04.04 installed using Ubuntu 18.04 mini iso and Xubuntu minimal. Asus Xonar SE sound card is installed on the NAS. SSH and VNC servers are installed on the NAS. When I ...
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can't connect to ftp with lftp (Ubuntu 18.04)

I have installed vsftpd on my server (Ubuntu 18.04) apt install vsftpd sed -i.orig 's/#write_enable=YES/write_enable=YES/g' /etc/vsftpd.conf systemctl restart vsftpd vim /etc/vsftpd.conf ...
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1answer
34 views

Ubuntu partition probably not used

I have 3 partitions in Ubuntu and I am trying to install Anaconda, that is pretty big, but my hard disk is 500GB. I receive an error saying that there is no space in my drive. I explored partitions ...
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1answer
55 views

DNS server doesn't work (18.04 LTS)

I have set up my ubuntu 18.04 server as a cache-only forwarding DNS server: cat named.conf.options options { directory "/var/cache/bind"; recursion yes; allow-query { 0.0.0....
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1answer
40 views

Ubuntu 18.04 SERVER -cannot connect USB wifi dongle

I have installed clean Ubuntu 18.04 server (no snaps added). I cannot get USB Wi-Fi to connect. I know the USB dongle works. I have put the wifi info in /etc/netplan/50-cloud-init.yaml, and the ...
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0answers
31 views

Server is unavailable after client logged out with an SSH terminal open

I am running Ubuntu 18.04 LTS on my home laptop (server) and Windows 10 laptop with WLS running Ubuntu (client) but I do not have physical access to my home laptop at the moment. Until recently I was ...
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1answer
122 views

Intel Corporation Device [8086:0d4f] is not supported on Ubuntu 18.04.3

I am currently unable to install ubuntu server 18.04.03 LTS on the latest intel NUC10i7FNH. Ubuntu always states both network adapters as unclaimed. The previous version (NUC8i7BEH) has the same ...
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Trying to use scp and pscp to transfer a file!

I am trying to transfer a file from my local desktop to my ubuntu ip. I have tried the command scp (my file) ubuntu@172.31.95.248:/opt/siff to directly transfer it where I want to, however I either ...
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1answer
12 views

How to restore a degraded drive back into a zpool?

I had an issue with my zpool - the dev id changed and one of the drives dropped out as degraded. I've exported the pool and reimported using this command: zpool import -d /dev/disk/by-id ...
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How can i redirect localhost:2333 to public ip and vice versa

i have hosted an java software which is accessible by localhost:2333 in browser i created secondary public ip in amazon aws es2 so how can i redirect all the localhost:2333 to my assigned elastic ...
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0answers
32 views

Bonding / Link aggregation / NIC teaming for faster transfer

I am working on a home server and want to utilize more than one 1Gb connection to my servers, to make for instance 4Gb connection with 4 cables. My question is how to achieve this with Ubuntu server ...
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15 views

How do I reinstate an empty http.config file?

I stupidly managed somehow to mess up my Apache https.file (I think). I was trying to install a new virtual server using Webmin. I tried using Virtualmin and somehow, it did something to Apache as it ...
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1answer
35 views

Ubuntu 18.04 network adapter lost settings

I have a hosted server at hetzner which has personnel projects running on it. Ive come to rely on it and sadly after a apt-get upgrade, ive rebooted and the network adapter doesnt seem to want to ...