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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 will be supported for 5 years. Only use this tag if your question is version-specific.

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Ubuntu versions and using apt-get for SNMP mib downloader

I am running Ubuntu 16.04.5 LTS, which I believe slightly pre-dates a fix to some issues with the SNMP MIBs installed by the snmp-mibs-downloader. I'm trying to understand whether I can use apt-get to ...
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28 views

Setting up stateless IPv6 configuration on Ubuntu 16

Is it possible to setup a stateless IPv6 config on my ubuntu machine when the backend is DHCPv6 I am trying to find a solution to get my Android devices to have IPV6 IPs if my ISP supports a Stateful (...
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1answer
26 views

Nginx, SSL and Varnish returning ERR_TOO_MANY_REDIRECTS

I'm trying to setup a Nginx server with Lets Encrypt SSL and Varnish for cacheing but I've hit a brick wall. For some reason the website just keeps returning ERR_TOO_MANY_REDIRECTS and I'm can't track ...
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0answers
18 views

Issues with apt-get update

I have a digitalocean cloud server (Ubuntu 16.04) that I have setup my ufw on. When I try to run apt-get update, I get the following: Err:1 http://mirrors.digitalocean.com/ubuntu xenial InRelease ...
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15 views

Squid and dynamic ip network adapter

I am struggling with setting squid proxy server to work with dynamic (3G/4G) USB modem adapter. I know that I should set tcp_outgoing_address directive to the IP of the adapter, but that is an issue ...
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1answer
14 views

How to set an olcAccess attribute so gidNumber=0+uidNumber=0 works like olcRootDN?

I'm upgrading a Ubuntu 14.04 OpenLDAP server to 16.04 and running into a snag. There is an (localhost) import script which uses uses ldapdelete -r -Y EXTERNAL -H ldapi:///... to remove some OUs and ...
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0answers
21 views

Debian buster repo in Ubuntu 16.04.5 LTS

I recently updated a Ubuntu 16.04 instance to 16.04.5. With an 'apt update' some days later suddenly 366 packages to update and 125 newly to install appeared. Obviously sources.list was appended ...
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10 views

host + docker iptables rules confusion

I have an Ubuntu 16.04 running Docker and I am attempting to secure this server such that it only accepts: SSH connections HTTP connection HTTPS connection I know to add iptables policies before ...
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1answer
11 views

Vagrant/VirtualBox guest doesn't boot completely after upgrading Ubuntu guest from 14 to 16

I have a running WEB server with Ubuntu 14.04.5 LTS with LAMP environment. The server is running in a Vagrant/VirtualBox virtual machine. I made a release upgrade to Ubuntu 16. The upgrade had no ...
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0answers
20 views

Upgrade Ubuntu to specific release

I am upgrading a server that was running ubuntu 14. I don't want to leap all the way to 18 because I'm guessing it will break too many things. So my question is how to upgrade to 16 instead of 18. ...
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14 views

DHCP request on ethernet cable reconnect with Ubuntu 16.04 Server

I have Ubuntu 16.04 Server here. My Ethernet interface is configured to use DHCP via /etc/network/interfaces and also I enabled "allow-hotplug" for the interface. It works. I can boot without cable ...
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15 views

getent passwd dosen't show users of LDAP server but getent shadow works

This is an Ubuntu with LDAP + NSCD installed and validating against an AD server. I can run ldapsearch without any problem and getent shadow shows all the ldap users but getent passwd and getent ...
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1answer
38 views

unable to connect to an openVPN server from a windows client

I set up an openVPN server and it is functional from android devices and linux desktops. However I have a client that is able to connect using the my.ovpn I provided from an android device but when he ...
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0answers
11 views

ifenslave stuck (lacp bond)

I'm trying to set up LACP bonding on Ubuntu 16.04.1 but I'm presented with this slightly illogical issue: $ ifenslave bond0 eth0 eth1 eth0: is already enslaved to bond0 eth1: is already enslaved to ...
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2answers
50 views

Unable to unmount and Detaching AWS EBS drive

I am using Linux Instance that has an EBS volume attached to it (mounted to xvda1). which I believe it causing some troubles. usually to detach the volume I go to volume section of the AWS EC2 console ...
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1answer
44 views

How to fix error “nonblocking pool is initialized”

I have Ubuntu 16.04. host server and there are three VM's installed over KVM. Today in the morning host server has left without disk space and two of VM's were paused automatically by system. One of ...
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0answers
33 views

Tcp/IP Latency on Ethernet peer to peer connection

I'm having 2 computers connected over the ethernet and communication with each other in a test setup. No for a round trip for a message to travel from computer A to B and back it takes about 12 ms for ...
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1answer
34 views

Ubuntu 16.04 - Purge php completely but still shows PHP 5.4.15 (cli)

I want to purge PHP completely from my Ubuntu 16.04. I have did all the stuff to remove PHP which as below, sudo apt-get purge "php*" sudo apt-get purge "^php.*" sudo apt-get purge "^php*" sudo apt-...
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1answer
21 views

Ubuntu 16.04 setting static IP address

I'm trying to set up an Ubuntu server on a virtual machine hosted on a windows OS. When I set it to the default DHCP the internet works fine. When I attempt to setup a static IP I get TX but no RX. ...
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1answer
25 views

How to create failure log file owned by syslog while running systemd service?

I am running Go binary as a service on ubuntu 16.04,and not able to create log file which is owned by syslog. I have created a services for myapp.service and it looks like as follows: [Unit] ...
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0answers
15 views

Cron sends mail to the wrong domain name

I set up a mail server with iRedMail. I am getting a lot of "unsent mail returned to sender" mail from my server. My server knows itself to be "server.example.com", but only handles mail for "example....
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1answer
29 views

Random Sleep in Crontab/Terminal [duplicate]

I want in terminal or in crontab(both) be able to put a random time. Something like Sleep $(1-300) pkill screen && ./start just a random simple example
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0answers
45 views

Postfix on Ubuntu 16.04 can send but not receive email

I've been searching for hours but I'm getting nowhere with this problem. On my Ubuntu 16.04 root server I have installed a postfix server with dovecot for IMAP and POP3. I can send emails from ...
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0answers
26 views

Which ECS resources would suit a small business on Alibaba Cloud? [duplicate]

When deploying a ECS/VPS instance on Alibaba Cloud, one can be overwhelmed by the number of server configuration that can suit a small website. This usually happens when migration from a shared ...
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1answer
42 views

Replacing root filesystem with EC2 snapshot

This documentation describes "Restoring an Amazon EBS Volume from a Snapshot". Having done that this documentation explains "Making an Amazon EBS Volume Available for Use on Linux" What I'd now ...
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2answers
160 views

Ubuntu 16.04 can't run “sudo apt upgrade”

I have server running Distributor ID: Ubuntu Description: Ubuntu 16.04.5 LTS Release: 16.04 Codename: xenial I'm trying to upgrade system using this commands. current user is not a ...
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0answers
12 views

Anything I should concern when using catch all server_name on nginx

I have Rails website where I want to enable my users to choose their custom domain and point to my website. I search and I found that I can declare catch app server block server { ...
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0answers
15 views

Upgrade postgresql from 9.4.8 to 9.5 in Ubuntu 16.04

I have a Ubuntu 16.04 server that requires PostgreSQL 9.5. The server has Postgresql 9.4.8. When I performed: apt-get update and apt-get upgrade I see that the following packages will be upgraded:...
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0answers
11 views

use VirtualHost *:443 as default for all unmatched ServerAlias [duplicate]

My apache is configured to use multiple VirtualHosts: default-ssl.conf for mydomain.tld and www.mydomain.tld and subdomain-le-ssl.conf for subdomain.mydomain.tld default-ssl.conf: <IfModule ...
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2answers
72 views

Failed to start postgres database [closed]

I tried to restart Postgres database. Then it shows an error. * Starting PostgreSQL 9.5 database server ...
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1answer
60 views

CA root install issue on Ubuntu 16.04 LTS Server

I am setting up nginx reverse proxy on Ubuntu 16.04 LTS Server for Web-Server. There will three different Services running on Ubuntu. Services will communicate each other using API calls. Similarly ...
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1answer
22 views

Adding IP address to existing network interfaces in Ubuntu

I'd like to add a new IP address to an existing interface on an Ubuntu 16.04 LTS server. I've looked at the file /etc/network/interfaces which defines the current IP addresses/interfaces and it has ...
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1answer
11 views

Apache Error: While writing python logs into file outside the project directory

I am working on a Django project and using Apache as web server. Everything is working fine with python manage.py runserver But while running the application through apache I am not able to write my ...
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0answers
41 views

Apache2 Restarting every 1min and 3 seconds - Ubuntu 16.04

It's pretty much in the title. I've tried everything I can think of but Apache2 is doing a restart every 1min and 3seconds - without fail. It's not doing a graceful restart, as every time it restarts ...
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0answers
165 views

mysql server install error - mariadb-client : Depends: mariadb-client-10

I try install mysql-server on ubuntu 16.04 apt install mysql-server Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be ...
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3answers
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Does ntpd need to be enabled on Ubuntu 16.04

I recently noticed people attempting to ntpd reflection attacks on my server. So my questions are, how necessary is it that ntpd stays enabled, and how can I enable and disable it?
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29 views

SSH to a non default port times out over Android hotspot connection

I'm trying to connect to a remote Ubuntu machine using ssh protocol. My local OS is Ubuntu 16.04 and the remote OS is 18.04. My local machine is connected to my Android 5 over shared hotspot ...
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0answers
55 views

Error in OpenVPN install

When I install or start OpenVPN, I get this error: Job for openvpn@server.service failed because the control process exited with error code. See "systemctl status openvpn@server.service" and "...
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0answers
105 views

How to reduce latency with Nginx RTMP streaming server

My Virtual Server is configured with 3GB memory, and 1 core. I'm playing the following mp4 file Sample MP4 Video File through my NGINX RTMP server, as small.mp4. I'm experiencing a latency issue. ...
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26 views

Ubuntu LINUX NIS server not supporting DNS lookup for hostnames

I have setup an NIS server on My Ubuntu 16.04 linux machine, for DNS lookups I made below edit in NIS Makefile: # Set the following variable to "-b" to have NIS servers use the domain # name resolver ...
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0answers
22 views

Could not access AWS EC2 Ubuntu 16.04 instance using nomachine client?

I have installed nomachine server on AWS EC2 micro instance. In the security group rules opened port 4000 for tcp access and udp 4111-4900 for media access. Tried connecting with nomachine client ...
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1answer
36 views

Can't access cups from ssh tunnel -Bad Request-

I have CUPS installed on different servers and I can connect to those using an SSH tunnel without any issue, but this server returns "Bad request" always. All my servers have Ubuntu 16.04 Server, ...
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0answers
29 views

Browser livarage cache failed on js ,css and png assets on apache

I am trying to enable browser leverage caching for my angular5 application. Files serve with apache Here is the configuration I've added in the vhost <IfModule mod_expires.c> ExpiresActive ...
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0answers
419 views

Can't get PHP to parse with NGINX/FastCGI/PHP

So I spent the better part of last night trying to get my ec2 instance setup with nginx and php7.2. I got everything installed and I edited the server block in my nginx.conf with the values I thought ...
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0answers
49 views

Powershell / Powercli script Cronjob

I made a Powershell script which uses Powercli to create and delete snapshots on my two Esxi hosts, but for some reason the Cronjob isn't working. In the syslog I can see the following message: (...
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0answers
23 views

Ubuntu Server Hanged on EC2

i had Ubuntu 16.04 installed on AWS EC2, i was able to connect to it using Putty in the past, but before couple of days, i was unable to connect to the server using the Putty. when i checked the ...
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1answer
86 views

ufw not enabled on boot

OS is Trisquel 8.0 (Ubuntu 16.04 LTS derived), kernel 4.4.0-131-generic I've reached the hair-tearing stage with ufw, which refuses to start up properly on system start. Have tried: Editing /etc/ufw/...
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0answers
31 views

Ubuntu 16.04 guest virt-install on CentOS 7 libvirtd server “Unreachable gateway”

I'm trying to (automatedly) virt-install an Ubuntu 16.04 guest on a CentOS 7 libvirtd with a kickstart file. The Ubuntu guest is to have two interfaces which are mapped to two bridged interfaces on ...
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0answers
31 views

Slow transfer rates on ubuntu server

OS: Ubuntu 16.04 I have dedicated server with symmetric bandwidth of 100 Mbps. However, every server process I run tops out at 20 Mbps in either direction. I have tested this on 25 MB ~ 500 MB files ...
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0answers
26 views

Setup SMTP connection between mautic and iRedMail

I have set up my iRedMail on AWS EC2 small instance, now everything is working fine under port no 25, but I need to authenticate users to authenticate themselves. In mautic "to authenticate we need ...