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Questions tagged [ubuntu-16.04]

Ubuntu 16.04 - named "Xenial Xerus" - is a Long Term Support (LTS) release of Ubuntu Linux. Officially released on April 21, 2016, it was supported for 5 years. Extended Security Maintenance subscriptions are offered by Canonical until April 2024. Only use this tag if your question is version-specific.

Ubuntu 16.04 - named "Xenial Xerus" - is a Long Term Support (LTS) release of Ubuntu Linux. Officially released on April 21, 2016, it will be supported for 5 years for Ubuntu Desktop, Ubuntu Server, Ubuntu Core, and Ubuntu Kylin. Only use this tag if your question is version-specific. Note that the Ask Ubuntu site is specifically dedicated to Ubuntu questions.

949 questions
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VPN server using StrongSwan "no matching peer config found" - what does it mean?

I have an AWS server running Ubuntu that has a pptpd server for VPNs, and many clients with different credentials. It works great. But apparently I'm not supposed to be using that any more, I'm supposed to be using ipsec. I'm trying this out on a…
Matthew Exon
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VM becomes slow after some days of runtime with 48 GB of RAM, not with 6 GB

I'm dealing with a problem for some weeks now which results in a very slow VM-guest after the VM ran for some days. "slow" means that CPU-bound operations take more time than before and as well that those operations seem to accumulate over time.…
Thorsten Schöning
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Server currently unavailable for Ubuntu 16.04

Background I have an Ubuntu 16.04 clean VM, and I am trying to install the latest version of graylog on it. Unfortunately, it is failing. What did I do? First I created a clean VM with the afore mentioned OS. Then I followed the official…
Flame_Phoenix
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Clock drifts on virtual machine, nothing helps

I have very rapid time drifts on vmware. -241587 20:38 -241587 20:39 -241587 20:40 -241587 20:41 -241587 20:42 -0.014 20:02 -0.025 20:03 -0.056 20:04 -0.093 20:05 -0.093 20:06 -68996. 20:07 -68996. 20:08 12.923 20:07 12.923 20:08 20.371 20:09 21.734…
Алдар
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Unexpected Error while installing MySQL 8 on Ubuntu 16.04

I want to install MySQL-8 on Ubuntu-16.04 and I am following official documentation. I haven't installed MySQL on this server in past so this one is the first installation of MySQL. First, I've downloaded mysql-apt-config using wget just like…
p01ymath
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Static route in initramfs

My hosting provider unfortunately requires the use of static routes for network configuration (gateway is on a different subnet than the host IP). For that purpose I added the following lines to the network configuration file…
Alec Hans
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How to debug dnsmasq requiring a service restart in order to work?

On a server of mine, I have dnsmasq setup; it is configured as another server, where it works (although, with other hardware and o/s). On this specific host though, dnsmasq doesn't work after boot (the clients can't resolve names), but it does, if I…
Marcus
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Rebuilding Nginx with Extra Modules Using PPA

I am trying to install the RTMP module on Ubuntu 16.04.4 LTS. Here is what I've done... add-apt-repository -y ppa:nginx/stable vim /etc/apt/sources.list.d/nginx-ubuntu-stable-xenial.list # Uncomment deb-src…
user1960364
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"Server refused to allocate pty" - how to mount devpts automatically?

I have been using this box ubuntu 16.04 box hosted in vSphere every workday for last half a year. I'm connecting to it from Windows with putty/kitty. Today, I was greeted by the message similar to one in this question. I'm not sure what caused it.…
Andrew Savinykh
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How to change I/O scheduler for a disk in ubuntu 16.04?

I am trying to set noop I/O scheduler for my disk. However, I am getting this error, -bash: echo: write error: Invalid argument I checked and found that there is no I/O scheduler option in my disk. cat /sys/block/sda/queue/scheduler [none] Is…
Vikas Saini
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SMART error (CurrentPendingSector) detected on host

Smart is reporting the following error each day one one of my data centre server SSDs: This message was generated by the smartd daemon running on: host name: x DNS domain: x The following warning/error was logged by the smartd…
user2353938
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Tomcat restarts even after explicit shutdown

I needed to set up an Ubuntu server based Tomcat server and I followed this well written post. Everything works great. Ran into an odd behavior though; I needed to stop the Tomcat server, so I used the command: sudo…
Web User
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Delete a file that was created with fallocate

I started to create a swapfile. I used this command: sudo fallocate -l 1G /swapfile Then, I decided that I want to make the swapfile in a different path, so I used the command again with the right path and activated the new swap file. How can I…
Noam B.
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Nginx + php7.1-fpm, upstream timed out (110: Connection timed out) while reading response header from upstream

I have installed Nginx and php7.1-fpm on Ubuntu 16.04. It was working perfectly fine. I am started getting 504 Gateway Time-out error. When I checked the Nginx log, I got this errors: *1 upstream timed out (110: Connection timed out) while reading…
O. Neel
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How do I properly configure a FQDN for sendmail to work with PHP mail()?

I'm sure variations on this question have been asked and I apologize if this is a duplicate, but I just can't seem to find something that works in my situation without breaking something else. I'm using my VPS as a webserver and I need contact forms…
armadadrive
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