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.

Filter by
Sorted by
Tagged with
1
vote
0answers
8 views

Installed CloudFlare Origin Certificates on Apache Server but certificate cannot be trusted

Installed an Origin Certificates on Apache Server but certificate cannot be trusted when I visit the domain. The certificate path says CloudFlare Origin Certificate. and the Certificate status says ...
1
vote
0answers
23 views

Issued a cloudflare SSL Certificate to ubuntu server but SSL gives error

I was given a Cloudflare SSL certificate issued by our DNS provider. As the server already has let's encrypt, the domain I had to add is loaded the Cloudflare SSL (when I visit the site I have CERT ...
0
votes
0answers
11 views

How to check what users can possibly access and control my server?

I have recently got access to a legacy server previously manage by someone else. Access control and password changing is the priority by now. I have some shell base knowledge but definitely not a ...
0
votes
0answers
20 views

systemctl restart ntp failing with error: unable to bind to wildcard address

We're running ntpd Ver. 4.2.8p4 on Ubuntu 16.04.6 LTS on ~100 physical servers distributed worldwide, with the configuration file /etc/ntp.conf managed centrally via puppet. If the configuration is ...
0
votes
0answers
15 views

Update Ububtu 16.04 kernel

I try to update Ubuntu kernel from 2.x to 4.x. I download new kernel and unpack it but when I want to upgrade it with this command sudo update-grub I get this error. root@server:~/4.11.2# sudo update-...
0
votes
1answer
18 views

How do I use apt-get to install one update at a time?

I have inherited 15 servers running Ubuntu 16.04 and need to install security updates on them all. I have been told by my manager to install them one at a time and then test the system to make sure ...
0
votes
1answer
44 views

Failed to activate service 'org.freedesktop.systemd1': timed out in Ubuntu 16.04.6

On ubuntu 16.04.6 on trying to mask a systemd service. I am seeing errors like below. systemctl mask hadoop-hdfs-zkfc.service Failed to activate service 'org.freedesktop.systemd1': timed out I am ...
-1
votes
1answer
31 views

How to add IPV4 range to unmanaged server

I am really inexperienced with Linux and networking. I bought an unmanaged dedicated server running ubuntu 16.04. I am having problems with binding the ipv4/24 range with my dedicated server. How ...
0
votes
0answers
6 views

Ubuntu 16.04 Server initramfs issues device-mapper : resume ioctl on (252:0) failled: Invalid argument Unable to resume ubuntu--vg-root (252:0)

After successful expanding storage in VMware Esxi, my coworker increase also the capacity in Ubuntu server 16.04 and resulting error initramfs Please help to solve this error i am new to linux server. ...
0
votes
0answers
17 views

ndb_mgm - command not found after installing MySql management server

ndb_mgm - command not found after installing MySql management server Ubuntu 16.04 mysql-cluster-community-management-server_8.0.20-1ubuntu16.04_amd64.deb server management started under system ...
0
votes
0answers
14 views

pam_ldap: ldap_result Timed out

I'm setting up password auth for OpenSSH along with a 2FA solution. After a user is prompted for their password on login (after they type their password and press [ENTER]), the 2FA system sends their ...
0
votes
0answers
8 views

How do you start tightvncserver with a password file already defined?

This is in Ubuntu 16. I am trying to configure tightvncserver to run without prompting the user to enter a password on its first run after the Vagrant box it resides within gets re-upped from new. I ...
0
votes
0answers
10 views

how to setup a VPN with juniper srx345 for ubuntu users

We are using juniper srx 345 in our lab for VPN we are using pulse secure my problem is some of our users need VPN connectivity in their Linux machine.but officially juniper is not supporting ...
0
votes
1answer
32 views

SSH connection lost all time

I'm using Ubuntu 16.04 and OpenSSH in my VPS. Everytime I log in via ssh, eventually connection is lost. I can't type anything. I need to close terminal and open it again. But, after try to login ...
0
votes
0answers
20 views

apache server in ubuntu 16.04 is not responding to port-forwarding in router

apache server in ubuntu 16.04 is not responding to port-forwarding in router i tried a lot to make apache server to make it repond to port-forwarding like changing the settings of ufw and apache sever ...
0
votes
0answers
17 views

What does 'self-detected stall on CPU' syslog message denote on Ubuntu 16?

I am running Ubuntu 16.04 and sometimes I am seeing the below message on syslog. Apr 24 05:19:46 vrni-platform kernel: [358660.688715] INFO: rcu_sched self-detected stall on CPU Apr 24 05:21:04 vrni-...
0
votes
0answers
29 views

Error Msg: <Xlib: extension “GLX” missing on display “:1”> while running a virtual machine with GPUs (Ubuntu 16.04) on the google cloud platform

I am trying to set up a Virtual machine on the google cloud platform with a nvidia Tesla T4 gpu. For my application, I would require a Graphical User interface since I intend to run a robotic ...
0
votes
0answers
21 views

Jenkins not running - OOM

without any noticeable change on my server (Ubuntu 16.04.1) my Jenkins stops working approximately every couple of hours. When I checked logs from Jenkins, there is nothing related. Then I checked ...
0
votes
0answers
121 views

PostgreSQL Service status Active(Exited) but I am able to connect

I have installed PostgreSQL (9.5) on a new Ubuntu (16.04) VM on GCD. THe status of service is active(exited). The output of sudo systemctl status postgresql is: ● postgresql.service - PostgreSQL ...
0
votes
1answer
62 views

I can not get MySQL Installed after upgrated my system to 16.04 from 14.04

I can not get MySQL Installed after upgrated my system to 16.04 from 14.04 All What I tried to get MySQL to work makes similar error like below: root@alm:~# sudo dpkg --configure -a Setting up ...
0
votes
1answer
63 views

Reinstalling MySQL

We currently try to reinstall MySQL 5.7 on a Ubuntu 16.04.6 LTS Box But the installation fails with this error: #sudo apt-get install mysql-server mysql-client --fix-broken --fix-missing [...] dpkg:...
0
votes
0answers
25 views

lamp server error log is showing this errors how to remove them in ubuntu and pics upload using php is not working in ubuntu16.04lts

lamp server error log is showing this errors how to remove them in ubuntu pics upload using php is not working in ubuntu16.04lts AH02282: No slotmem from mod_heartmonitor
0
votes
0answers
10 views

Allocate Added Disk Memory in Ubuntu 18.04.4 Live Server Virtual Box

I have resized my disk memory from 30 GB to 50 GB and it was successful from what I saw in the Virtual Box Manager. Upon running df -h, I saw that the 20 GB was not yet reflected in /dev/sda ...
0
votes
1answer
76 views

systemctl enable sidekiq: Failed to issue method call: Access denied

I am trying to implement Sidekiq using Systemd on Ubuntu 16. I am logged in as deployer. I navigated to the /lib/systemd/system directory and wanted there to create a file: nano sidekiq.service. ...
0
votes
0answers
7 views

Apache2 (on Ubuntu 16.04) - when defining multiple VirtualHost error logs are missing

I defined two VirtualHosts for Apache2 - one on port 80 and the other on port 5000. For each I defined a different ErrorLog file, app1.log and app2.log. Both relevant sections look like below. <...
0
votes
0answers
24 views

Ubuntu 16.04 & Plesk Obsidian 18.0: Possible spam messages - false positive?

I'm using Ubuntu 16.04.6 LTS with Plesk Obsidian (version 18.0.25) on a dedicated vm. After installed the last plesk updates there is a message on start screen from plesk: Possible spam: View report ...
0
votes
0answers
15 views

I have 2 accounts in Google Cloud and in one account I am facing issue

On one of Google cloud account when I create any instance I get This site can’t be reached <ip> took too long to respond. I opened the ports and firewalls still am facing this, while on ...
0
votes
1answer
27 views

Tracking down disk space usage on a machine with docker network volumes

I have an Ubuntu server 16.04 VM running my docker containers. It has a relatively small disk (~60GB) which I thought would be fine because I have dedicated NFS storage that I mount via docker to the ...
0
votes
0answers
15 views

users can't access ubuntu VMs after joining Domain

I recently joined my ubuntu VM to my Azure AD Domain Services (AD DC), I can login and all uses in the AD admin group (sudo users) can login in. However, other users can't login. I have tried the ...
0
votes
1answer
453 views

Apache server-status is stuck in redirect loop

I am using Linux in Azure ( Ubuntu 16.04.06 LTS ) and I am trying to enable Apache status. However, after I enable the status module, when I go to http://localhost/server-status I get an error $ ...
0
votes
0answers
21 views

Running 1000 connection a sec with dotnet core on ubuntu over ngnix

I need to configure a high traffic server. Currently I have about 700 connection per sec. I have a dotnet application that runs over ngnix on ubuntu 16.04 I have set the env with this documentation. ...
1
vote
0answers
79 views

Replace zfs pool member after reboot reordered disk paths

I created a raidz1-0 pool with three devices. Two where added by their /dev/disk/by-id ID and somehow I decided to use /dev/sdg1 for the third one. After a reboot years later, I can't get all three ...
1
vote
1answer
87 views

too many ssh-agent process per user on several servers [closed]

Several users seem to have problems with the usage of ssh-agent in their login environment. sri for instance has 1295 of them running on login02. And many other users are having same issue. I am ...
0
votes
0answers
13 views

Patching a chroot

I used debootstrap to create a new Ubuntu 16.04 chroot on a Ubuntu 16.04 base system. I will patch the "main" OS monthly. I just realized that I hadn't really considered whether I would also go into ...
0
votes
0answers
16 views

A single switch for multiple options of connection LAN, AP or direct ethernet access

I have a few ubuntu machines that I want to put on a switch. I want to access these machines via the following methods: LAN, this is as easy as plugging in the LAN cable to the switch AP, using one ...
0
votes
0answers
16 views

AWStats Text Files Getting Deleted/Overwritten

I have installed AWStats on Ubuntu using the Webuzo control panel (similar to cPanel). AWStats is generating the text files and the html files correctly. I am using the browser to generate the html ...
0
votes
0answers
18 views

accessing MongoDB from a virtual machine

Well recently I have installed MongoDB on my windows machine which is my local machine and I want to connect to it from a virtual machine in my Virtualbox. the vm is an ubuntu 16.04 and it's hosting ...
0
votes
0answers
18 views

How to isolate a VirtualBox guest in Ubuntu host

I have an Ubuntu host running virtualbox with a Windows guest. I would like the guest to access the Internet but not be able to scan the host's local network. I tried with vlan and iptables but it ...
0
votes
1answer
69 views

How to upgrade ubuntu with security fixes without updating PHP with new major version?

On my web servers I run ubuntu 16.04 with php7.2. I would like to be able to run periodically cron task to install system security fixes and updates (something like apt-get upgrade) but I don't want ...
0
votes
1answer
124 views

GCP: error while creating image

I am making an image from a ubuntu vmdk virtual disk. but I am getting an error The error: ERROR: build step 0 "gcr.io/compute-image-tools/gce_vm_image_import:release" failed: exit status 1 Full ...
0
votes
2answers
59 views

Reasons for ethernet interface to stop responding for ~30 seconds, then acknowledging all received packages?

First question! Hi! Running on Ubuntu 16.04. Hardware info: lspci | awk '/[Nn]et/ {print $1}' | xargs -i% lspci -ks % 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V ...
0
votes
1answer
292 views

Getting error in curl command(curl: (35) error reading X.509 potentially-encrypted key file: Error in parsing.)

I am using below command curl --insecure --cert 'cert.p12:password' -X GET https://serverUrl -H 'Content-Type: application/json' curl --insecure --cert-type P12 --cert 'cert.p12:password' ...
2
votes
0answers
54 views

Permission issue preventing increase in Open Files Limit in Ubuntu

My Digital Ocean droplet's ulimit -n yields 1024. Now it's a dedicated machine with Ubuntu 16.04, 32GB Ram, 16 Cores. I want to crank it up to 65535. The problem: I followed a bunch of steps to ...
0
votes
1answer
60 views

How to verify RAID1 on my server Poweredge R210?

I've configured RAID1 through Lifecycle Controller, then I installed Ubuntu 16.04.3. In section partition disk I selected Guided - use entire disk, I'm not sure if I need to configure RAID1 here or it'...
0
votes
0answers
31 views

Find the IP address of the spammer

My Ubuntu VPS is getting bombarded by some Russian IPs. I blocked one such IP which I got in Drupal contact form. I subsequently disabled this form. I still see these entries in /var/log/mail.log ...
0
votes
1answer
241 views

PHP-FPM creating too many proccesses & eating all the CPU

This is an urgent question. My AWS instance with 4GB RAM and 2vCPU is getting exhausted by too many php-fpm processes. PHP-FPM starts creating too many processes which it didn't do earlier. This ...
0
votes
1answer
18 views

Issue mounting Ubuntu NFSv4 share on Windows 2012 R2

I'm having issues mounting an NFS share (Ubuntu 16.04) using NFSv4 on Windows 2012 R2 from what I understand 2012 R2 supports NFS v4.1, it looks to be defaulting to NFsv3 when running nfsstat -m. I'm ...
0
votes
0answers
83 views

Haproxy auto reload on configuration change

I am new to haproxy, I have below questions... 1.) I am trying to configure Haproxy in such a way that it automatically reloads after the configuration on the file(haproxy.cfg) is changed. Tried, ...
0
votes
1answer
71 views

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 ...
0
votes
0answers
62 views

keyboard-interactive not recognizing pam_google_authenticator.so

I followed the steps here to enable google-authenticator based 2FA for ssh. However, I think that ssh is ignoring the keyboard-interactive authentication method. This is the verbose ssh output: ...

1
2 3 4 5
19