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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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How to solve Apache-2.4 AH02026: Failed to acquire SSL session cache lock

I've just stood up a new AWS Ubuntu 16.04 server running Apache2.4 with PHP-FPM 5.6 and 7.1 available via different sockets. Everything is working great, but I'm getting the following errors in the Apache error log: [Mon Jun 19 05:48:06.158306 2017]…
e_i_pi
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How to correctly prevent auto-assembly of RAID arrays on Ubuntu 16.04?

I'm trying to stop mdadm from automatically assembling RAID arrays when I attach disks. I had a solution that worked on Ubuntu 14.04, but it doesn't work on 16.04. I've found a thing that works for 16.04, but it's a bit of a hack, so I'm hoping…
Giles Thomas
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www-data user can't write to /tmp folder

Linux 4.4.0-75-generic #96-Ubuntu SMP Thu Apr 20 09:56:33 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Permissions seem wide open >>> ll / ... drwxrwxrwt 8 root root 4096 May 1 02:44 tmp/ Denied access: sudo -u www-data echo "hello" >…
Matt
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DHCP Server Listing Host as "BAD_ADDRESS" and not Registering DNS

Question Why is DHCP showing "BAD_ADDR", why does it think there is a Conflict, and why can't the host register its DNS name? Devices: DHCP Server = Server 2012 on bare metal. Also running DNS. Host = Ubuntu 16 Server on ESXi. For testing…
Copy Run Start
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How to automatically switch to home directory when switching user?

When i ssh to my ubuntu server, i get logged in to my user's home folder. But when i do su otheruser and enter the password, i get logged in as the otheruser but the home directory stays for the previous user. How to automatically switch to the…
user2707590
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why is php-fpm spawning and destroying hundreds of children per second with no server load?

The php7.0-fpm.log is showing hundreds of children being spawned per second, then being immediately destroyed. This is happening non-stop. The log looks like this: [09-Mar-2017 02:58:25] NOTICE: [pool www] child 4980 started [09-Mar-2017 02:58:25]…
Nick
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Bind9 timeout from LAN, server listening on port 53

I have a very wierd situation with Bind9 on Ubuntu Xenial. The server is listening on port 53 (tested with portqry from windows boxen that are trying to use it as a local DNS server) but it's timing out on requests like: > dig @192.168.1.6 YYY…
Bojan Markovic
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Any possibility to use ZFS for Samba4 AD DC share on Ubuntu 16.04?

For a few (~ 5) PCs running Windows 8.1 I have to setup a domain controller using Samba4 on Ubuntu 16.04 Server. Additionally the DC should provide a few shared folders with user-specific access and act as a printer server. To prevent data…
Apollo13
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nginx shows 200 ok status but doesn't load page

I have installed nginx,php7.0-fpm and mysql on my ubuntu 16.04 server. Everything works fine however It doesn't load a setup page of phpmyadmin. Below is my phpmyadmin nginx block. location /phpmyadmin { root /usr/share/; index…
Shailesh Sutar
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Why is Apache creating so many internal dummy connections? CPU usage issues affecting server performance

Trying to get on top of some CPU usage issues and investigate possible malicious activity. As part of this I am curious about lots of dummy connections in the Apache logs. What is the origin of these and why so many? We run a number of PHP/MySQL web…
BadHorsie
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Using Apache rewrite rules in .htaccess to remove .html causing a 500 error

I have written a small website (4 pages, HTML only) and I want to remove the .html extension from the URL by putting some rewrite rules in my .htaccess file, I've Googled around and found several snippets similar to this: …
Enicli
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How can I fake my IP address for local applications?

I tried searching for how to do this but either my google-foo is not up to snuff, or it is simply not asked. I have a 3rd party application that I need to install on a computer in a private network. They do not offer an offline installation…
Trenin
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Debian/Ubuntu Linux: fixed IP when DHCP fails

I'm looking for a solution on this problem: I have this small industrial pc called UP Board, running some Linux Debian/Ubuntu adopted version: 4.10.0-9-upboard #11~16.04.1 SMP Wed Oct 25 17:10:46 IST 2017 x86_64 x86_64 x86_64 GNU/Linux (I believe…
okoester
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Soffice.bin high CPU usage

On an Ubuntu 16.04 64bit server (kernel 4.4.0-142-generic) with 4gb of RAM and a 2 cores (Intel(R) Pentium(R) CPU G2030 @ 3.00GHz), we run LibreOffice 5.1.6.2 headless to convert HTML to PDF documents. I noticed a constant, more than 40% cpu usage…
leonardorame
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Not sure how to read lsattr output, where can the legend be found?

When I run the lsattr command, I get the following output: root@swarm-stg-01:/etc# lsattr timezone --------------e--- timezone But I don't understand how to read he output and man command doesn't contain this legend. So what does the "e" mean and…
Lidor Ettinger
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