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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.

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Why does Ubuntu want to reboot so often after installing updates?

One of the benefits that is always touted for Linux over Windows is that Linux servers don't need to be rebooted all the time, but it seems like our Ubuntu servers always want to reboot after installing the weekly, if not daily, updates. What…
Ron Smith
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Why is ALPN not supported by my server?

I'm currently running a Ubuntu 16.04.1 LTS server using NGINX 1.11.9 and openssl 1.0.2g. According to everything I've read, these versions should support ALPN, yet when I run a test on KeyCDN's HTTP/2 Test tool, I get "ALPN is not supported" And…
Godwin
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varnish daemon not listening on configured port

I'm trying to install varnish on ubuntu 16.04, I read several article none are working. From what I read, since ubuntu 15.04, the way of configuring varnish has changed (because of systemd). Now on I've got a real mess wich don't work :…
Bruno
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Options for performance improvements on very big Filesystems and high IOWAIT

I have a Ubuntu 16.04 Backup Server with 8x10TB HDD via a SATA 3.0 Backplane. The 8 Harddisks are assembled to a RAID6, an EXT4 Filesystem is in use. This Filesystem stores a huge amount of small files with very many SEEK operations but low IO…
t2m
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Start service after AWS user-data has run

I am building an AMI based off of an Ubuntu 16.04 AMI. When I start an instance from my AMI, I would like to pass in a user-data script that runs before the service start up on the AMI. It looks like the user-data is run in cloud-final.service. If I…
Bryan
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InnoDB: The innodb_system data file 'ibdata1' must be writable

First, I'm not a backend person. I had a running instance of mysql on my ubuntu server. I was able to log in, run some basic queries, everything was fine. I stopped the service and started futzing around trying to get mysql to boot up in…
motleydev
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Interface will not rename under systemd

I'm trying to rename a network interface on an Ubuntu 16.04 VPS, but am unable to do so. Systemd names my primary network interface enp0s3. I want to rename this interface to eth0. According to the systemd.link documentation I created a file called…
Oldskool
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How Uninstall pip and python

I wanted to install version 3 of python and pip but instead issued sudo apt-get install python-pip python-dev how do I uninstall python and pip, I tried sudo apt-get uninstall but did not work, what is the correct command?
user402175
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Enable error logging on PHP-FPM 7 with Nginx?

This is essentially the same as these questions: https://stackoverflow.com/questions/8677493/php-fpm-doesnt-write-to-error-log Nginx not logging PHP errors BUT the answers there don't seem to be working on Ubuntu 16.04 with PHP…
Nick
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command KLogPermitNonKernelFacility is currently not permitted

I've setup loggly to for syslog alerts among other things and am getting the following error repeatedly in syslog. command 'KLogPermitNonKernelFacility' is currently not permitted - did you already set it via a RainerScript command (v6+ config)?…
cnizzardini
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php7.0-fpm.service is masked

I can't seem to get php to start anymore and it's telling me it's masked which from googling appears to be a super disable? Can anyone tell me how to unmask it? What happened was I did some updates sudo apt-get update and then I shutdown my server…
benikens
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Can I request a specific IP address via DHCP without rejecting an offer of a different address from the DHCP server?

Using isc-dhcp-client on ubuntu server 16.04, there's an option that sounds like it should do what i want: send dhcp-requested-address 10.23.33.254; When this option is present in my dhclient.conf file, my client does exactly what I want: always…
notatoad
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Ubuntu cron job every workday

On Ubuntu 16, I'm trying to trigger cron job at 8:00 AM on workdays, and here is what I've tried so far 0 8 * * 1-5 /path/to/command and 0 8 * * MON-FRI /path/to/command Does not work
Aleksandar Pavić
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How to run 'sudo chmod 666 /var/run/docker.sock' on Ubuntu, before the services start

I have an Ubuntu Server 16.04, with a service that needs this permission $ sudo chmod 666 /var/run/docker.sock Right now, every time the server is rebooted, it's necessary to open a ssh console, run that task and start the service manually. I need…
JonDoe297
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What does memory_limit = -1 mean in a PHP.ini file?

I was in some ubuntu server configs, and found that my memory on the server (online resources say default is usually 128Mb correct?) and I found this listed memory_limit = -1 Why? What does a value of -1 do? Php of 5.6
camdixon
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