Questions tagged [ubuntu]

Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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8 views

svn apache prevent anonymous read dav_svn.authz

So I have gone through about a dozen other threads as well as read the http://svnbook.red-bean.com/en/1.8/svn.serverconfig.pathbasedauthz.html I feel like I have tried everything, and either there is ...
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Ubuntu 20.04 time sync problems and possibly incorrect status information

I have been having some problems with crashes on my KVM host (Lubuntu 20.04), and when troubleshooting, I noticed some time-related errors. Upon further investigation, to my horror, I saw that time ...
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Serving subsection of urls on different network card

I have a Django 2.2 web application running on Apache 2.4 Ubuntu 18.04 web server, which has two network interfaces. One network interface is for internet access(eth0) and other one is for local ...
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What does (master *=) after a directory name?

I tarred a folder from one server to another server ubuntu 18.04, not the first tar I had moved today but this one when untarred and I cd into the folder has the name (master *=) after it with the ...
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Why is “more” entropy available when the server is busy? [closed]

I am not quite sure if the title of this question is appropriate. I had difficulties finding the correct words and would be happy if someone could submit an edit if he finds a better description. To ...
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Automated Ubuntu 20.04 server install : How can I get hostname from DHCP server?

I'm sorry but English is not my first language. For unattended classical ubuntu server installation, I populated the hostname from my DHCP server. Then I passed it by 'netcfg/get_hostname=' option of ...
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AWS EC2 instances come with landscape installed - considering removing it

We are starting multiple EC2 instances with ubuntu on AWS. After a first security review, we found landscape is installed by default on the AMI we are using. Well landscape is a for-pay service from ...
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Allow only certain hostname in Nginx block

how do you allow only certain hostname in Nginx so that one can only access myhostname.example.net but not example.net?
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I have blocked myself our of VIRTUALMIN

So i had enabled IP filtering for logging in to VIRTUALMIN. But now that I have changed my ISP, I cannot seem to get that page to work. All I see is Failed to load resource: the server responded with ...
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1answer
50 views

“Unknown user” bounce from Postfix with multiple domains on a single server instance

I'm setting up a Ubuntu server and am using Postfix for my email accounts. This server will host several different domains which I've set up each with a corresponding virtual server and home directory....
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logrotate -> gzip 100% CPU usage after boot

I have Ubuntu 20.04. After booting or returning from suspention my CPU goes into 100% usage thanks to (root) gzip process. After I checked dependencies with: ps fax | grep -B5 gzip It turned out that ...
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Adding a whole ipv6 /64 block to a ubuntu 18.04 server

I know there are other questions that had already asked this, but the solutions don't work (anymore and for me). I added the IP in the netplan config file(01-netcfg.yml): version: 2 renderer: ...
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Script to see if Ubuntu 18.04 file system is in read only mode

I'm semi new to Ubuntu server, and recently had an issue in our production network that we would like to make sure doesn't happen again. The file system went into a "read-only" state, which ...
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How can I set up a mail server? [closed]

I wanna set up a mailserver on my home network. I have a computer 24/7 on, with nginx server running, a zabbix monitor, and pufferpanel to control game servers. I have the devhost.net.br domain set up ...
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Ubuntu: Apache2 not loading PHP-FPM php.ini

I need some help on Apache2 not loading the php-fpm php.ini. I have installed php-fpm successfully, created the pool and other configurations but Apache2 doesn't change the Server API from Apache 2.0 ...
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Apache Http Reverse Proxy AJP not working with DNS

When I got to the ip address of the server, the reverse proxy works as expected. When I visit the domain name, however, it does not. I've replaced the domain name here with example.com. I have certbot ...
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LXC: Create privileged container that can execute mknod

I'm trying to figure out how to build Ubuntu Core 18 on my Raspberry Pi. It seems like the best way to do this is to use an LXC container. However, I'm getting this error when I snapcraft --...
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How to pass all traffic from guest Android on VirtualBox through proxy [closed]

I have Android 9 installed on Virtual Box. Host OS is Ubuntu 18.04. I want to pass all traffic from Android through proxy. Tried: settings put global http_proxy <address>:<port> in Android ...
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1answer
47 views

Kubernetes: How to force kube-proxy to listen on localhost only

In my configuration, very basic one (Only calico network, no apps yet) I have nginx-ingress running as NodePort - binding on port 30080. This port should be accessible only from localhost, but k8s ...
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Tomcat 9.0.36 https configuration to port 8443 not responding

I have a Tomcat 9.0.36 running on a Ubuntu 18.04.4 LTS (virtual)machine. I am trying to configure it to use a certificate that I got from a CA. I generated successfully the keystore file using keytool,...
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Failed to connect socket to 'var/run/libvirt/virtxend-sock': file or directory not found

I want to boot a physical installation of windows 10,so I need to run xen HVM version. Do u have a tutorial that I can follow ? I'm trying to create a new connection inside virt-manager,with xen,on ...
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1answer
32 views

How to set up second IP address on server [closed]

I recently acquired a VPS and a domain and set up a private email server. I intend to set up a small personal website running flask on a second IP address I have bought from my VPS provider. However I ...
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2answers
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how to get disks on a PERC H310 visible again

My setup : small home server with Asrock H67M-ITX, CPU : i3-2120T, PERC H310 RAID with 7 disks all passthrough (I use MDADM for the raid functionality). The system (Ubuntu 20.04) is on a SSD connected ...
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SSH - Permission denied (publicKey, password) [closed]

I am trying to ssh to master server. But i keep on getting this message PERMISSION DENIED (publicKey,password). Can anyone help me on this. Why is my permission getting denied?. I have changed the ...
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+100

virt-sandbox error creating an OS container with lxc backend in virt-manager

I am attempting to create an OS container through virt-manager with the lxc backend. virt-sandbox exits without any information on why it fails. Where can I find logs for it? Can I run virt-sandbox ...
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1answer
39 views

Long TTFB - Cloudflare

I'm running a website on Apache2/Ubuntu 20.04, and for some reason I'm getting a really long TTFB (~15 seconds), this only happens while I'm using Cloudflare's Proxy/CDN. If I'm connecting directly to ...
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1answer
20 views

Nginx location matches the both subdomain and domain

I'm going to serve a webapp only on my subdomain admininstration.example.com but it is accessible from example.com too. This is my nginx config: http { server { server_name = _; listen 80 ...
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“Attempted to use Snappy compression, but Snappy is not installed” on Ubuntu VPS

I have set up a new VPS via Digital Ocean and have installed MongoDB V4.2.8 on an Ubuntu server 18.04 release as per the official Mongo documentation. I'm using Compass version 1.21.2. I have managed ...
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1answer
130 views

While SSHing into my VPS, it will keep disconnecting the connection after few minutes of inactivity [closed]

I SSH into my VPS and do other stuffs on my computer side by side. If I don't enter any command in VPS for a few minutes it will disconnect me. Entering password and then reconnecting again and again ...
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101 views

My site's load times have become extremely slow or fails to load at all (Cloudflare 522 error), but minimal server load (Nginx + Apache + Wordpress)

I run multiple websites being served on a stand alone Ubuntu machine, all of them use same nginx + apache setup. However one of these sites has begun to act very strangely today. It's the only site on ...
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How to create an ubuntu custom repo for different dists and archs?

We want to make it possible for users of our software to just run sudo apt install <package>. I have seen several pages with instructions of how to do this. Some are outdated, and some only ...
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Using linux to access resources through windows machine [closed]

I have a windows 10 machine already set up to have access to some resources (various domains and subdomains) based on the machines ip (and probably other network stuff). Then, on the same network I ...
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7 views

When setting netplan static ip, connection seems to sleep if left for a while

I am trying to set static local ip on ubuntu 20.04 server by disabling cloud-init, then set my 50-cloud-init.yaml network: ethernets: eth0: addresses: [192.168.1.11/24] ...
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nginx connect() failed (111: Connection refused) while connecting to upstream [Mastodon]

I am setting up a Mastodon server on Docker on Ubuntu. The server is up and running but when I try to access the site from a browser I get the error 502 Bad Gateway. I have checked that ufw is ...
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1answer
40 views

Can SSH, but NOT SFTP - Ubuntu 18

I have a new Ubuntu 18.04.3. I can SSH fine, but I can't SFTP. SSH SFTP This is my SSH configs Port 8200 ...
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22 views

Move /home to mirrored root partition

I managed to screw up my partitioning when building a new system. I had configured a hardware mirror on an msi motherboard so when installing I assumed that the OS would see a single drive. Instead ...
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0answers
124 views

Rebooted Ubuntu, Raid6 degraded, Raid5 ok [closed]

Boot Drive is a WD 1TB SSD running Ubuntu 18.04 LTS... I have 2 arrays running off 1 LSI Card... 16 x 8tb IronWolf inside a RaidMachine (Raid 6) [my main data] 11 x 10tb Exos inside a SuperMicro (Raid ...
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1answer
68 views

ZFS configuration for Ubuntu 20.04

TL;DR I have three 2 TB drives and one 500 GB drive in a machine running Ubuntu 20.04 with a default ZFS install on the small drive. My plan is to partition the larger drives into two partitions each, ...
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61 views

How to block any out-side(docker-host) port say 80 in ubuntu linux VM

How to block any out-side(docker-host) port say 80 in ubuntu linux VM. Hi there, I have two Ubuntu VMs on Hertzner Cloud provider in docker-swarm cluster mode running two stacks serving same content (...
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9 views

openvpn and apache2 - allow websites only over vpn

Using ubuntu and openvpn with apache2 server installed, I need to restrict the access to a specific website to clients connected through vpn If I visit https://www.myip.com/ via browser while ...
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1answer
37 views

Dealing with an ATA error [closed]

my Xubuntu 16.04. produces a non-stop ATA error message. Here is the output of dmesg [ 4547.943159] ata7: hard resetting link [ 4548.657810] ata7: SATA link down (SStatus 0 SControl 300) [ 4548.657824]...
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2answers
521 views

Diagnosing apache cpu / memory / process spike

I have a server running Ubuntu 18.04 which has been experiencing huge CPU spike that nearly brings Apache to a halt once or twice a day. The server runs a couple of websites - all php & mysql ...
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37 views

Install MySQLDump for MySQL 8.0 on Ubuntu 18.04

I am trying to install mysqldump on a Azure hosted Ubuntu VM. During the build process I attempt the following command: sudo apt-get update sudo apt-get install -y --no-install-recommends mysql-client-...
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1answer
39 views

Install Ubuntu 20.04 desktop over ssh (Ansible)?

The computers in our classroom currently run a master system (Ubuntu 18.04 desktop) on one partition and a backup system (Ubuntu 16.04 desktop) on another partition. How can I remotely (ssh or Ansible)...
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1answer
60 views

openvpn - Authenticate/Decrypt packet error: packet HMAC authentication failed

I have this client ovpn file like this client proto udp explicit-exit-notify remote PUBLIC_IP 1194 dev tun resolv-retry infinite nobind persist-key persist-tun remote-cert-tls server verify-x509-name ...
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1answer
18 views

Do I have to restart my server after changing settings.py?

I have a django app hosted on digitalocean with gunicorn and nginx. I have just changed something in settings.py. I have taken my SECRET_KEY and now I stored it in etc/secret_key.txt settings.py with ...
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1answer
20 views

How do I set enviromental varialbes for my ubuntu server?

I have a ubuntu server deployed at digitalocean with gunicorn and nginx to host my django project. Now I want to save my secret key in an env. var. . I searched in the internet and I found that I have ...
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1answer
36 views

How can I force a nameserver resolution using the second nameserver on an ubuntu server [closed]

I try to download something from nvidia on a remote server via ssh. Iran is banned by the nvidia website. When I check the server dns, that is: IP4.DNS[1]: 192.168.20.14 ...
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0answers
35 views

Do I need to replace my NVME SSD?

I have a simple server setup: 2 NVME SSD disks (both SAMSUNG MZVLB1T0HALR-00000 for 1TB) united into RAID0. OS Ubuntu 19.04 Today my system stopped responding. Reboot didn't help. I connected via KVM ...
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13 views

puppet master configurartion with automatically capture vm IP in puppet configuration

i am trying to install puppet master with automation on vm, I am using shell scripting for this but i am entering IP address of puppet master vm in puppet configuration. but i need to update the IP ...

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