Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Ubuntu GUI on Ec2 AWS via VNC or XRDP from MacOSX o

I have red some many things about how to remote desktop on your Ubuntu instance. 1) Please can someone tell me as of now what is the most recommended way: VNC or RDP? Does it make a difference to ...
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1answer
16 views

Active Directory users authentication on Ubuntu server

I need the simplest way to authenticate Active Directory users on Ubuntu Server (at login). I am trying with libnss-ldap, but it only works with plain LDAP server (like SLAPD) but now Active ...
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1answer
7 views

How to add new virtual users to an existing VSFTPD virtual user database in DB4 format?

I have setup and configured a VSFTPD server on a Ubuntu 14.04 server that is working as intended. For authentication, I setup virtual users via a PAM passwd file in DB4 format using methodology ...
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How to reduce AWS EBS root volume size?

Enlarging an EC2 instance is easy like a breath (for instance, create an AMI, launch an instance from it and then change the storage size). But reducing it becomes more difficult. I’d like to reduce ...
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0answers
13 views

EMFILE - too many open files solution?

I'm getting this error, my server has a lot of visitor now. My Vps is 4 Gb ram with 4 Cpu. Should I move to bigger server for solution? Because ulimit -n 10000 not working. I'm serving a basic ...
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2answers
22 views

Hostname not changing (Ubuntu 14.04)

When I set up a VPS, I set the name to "main" so both my /etc/hosts and /etc/hostnames files had one entry (that being "main"). So I set up root ssh access and type "hostname" and it gives me "main". ...
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13 views

What steps should I take if jetty is fails to start, no hints in logs?

So I have a war file which is sucessfully launched under jetty in many environments except specific ubuntu machine. On this machine nothing happens, nothing at all. My first thought was I have issues ...
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1answer
13 views

How do I get boto to work with port 443 being prerouted to another port?

My title may be poorly worded, but I'll try to get the backstory straight: I have Ubuntu instances with clusters of Docker containers all hosting web servers In order to appease firewalls we want to ...
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9 views

Restrict user changing xscreensaver settings

I would like to know any solutions people came up with restricting a user from changing a system wide configuration of xscreensaver. Part of my job is managing systems which have a requirement that ...
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0answers
9 views

Can't boot after intrerrupting do-release-upgrade (Mount failed for selinuxfs on /sys/fs/selinux)

From a ssh session I ran: sudo apt-get install update-manager-core sudo do-release-upgrade I went to read something else and when I returned to my ssh session, it wasn't responsive. I'm presuming ...
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0answers
13 views

start-stop-daemon not working as expected

I can't figure out why start-stop-daemon is not running the script below. What am I doing wrong? start-stop-daemon reports that it will start node when using the --test flag, but when I actually run ...
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0answers
17 views

Mount the other half of instance store volume

I have a running c3.xlarge EC2 instance on AWS. As listed in http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html#StorageOnInstanceTypes , it should provide 2 x 40GB SSD instance ...
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1answer
41 views

How to setup 3 networks on a 2 NICs Ubuntu box?

I need to configure 3 networks on my Ubuntu machine (OpenStack Network node) The /etc/network/interfaces I have is: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet ...
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1answer
27 views

LDAP communication between two local server

I want to make my LDAP Port accessible inside my private network. Is it possible? Operating System : Ubuntu 14.04 x64 My LDPA Server configuration: eth1 Link encap:Ethernet HWaddr ...
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1answer
18 views

Can't add Nodes to Percona XtraDB cluster

In my case, I have two nodes in cluster, but when I use $service mysql bootstrap-pxc to start XtraDB cluster, I found nodes were not added to cluster. I also check /var/log/mysql/error.log, but no ...
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0answers
27 views

How to find what caused apache and proftpd to go down [on hold]

I am new to Linux. I am running Ubuntu 12.04.5 LTS in my new server. My problem is Apache (2.2.22) and proftpd stop working almost every other day and come back online after 5 to 10 minutes. Where ...
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0answers
9 views

Exporting folder from subversion repository [on hold]

We have a svn running on Ubuntu server. From a project repository I need to export the 2-3 project folders. how do I export it.? Can you please guide me?
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1answer
10 views

Collectd “interface” plugin reporting cumulative value rather than rate

Collectd's interface plugin is supposed to report octets per second and packets per second, as documented here: https://collectd.org/wiki/index.php/Plugin:Interface, but for me, it reports cumulative ...
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1answer
31 views

Straight forward way to run ssh-agent and ssh-add on login via SSH?

I'm trying to have the following commands be auto-executed when I login to my server via ssh: ssh-agent /bin/bash ssh-add ~/.ssh/id_rsa My ssh key has a passphrase and I'm fine with entering it ...
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0answers
9 views

How to package nginx with custom modules for ubuntu server?

I need nginx with a few modules that are not included with the packages available via apt-get. I have no problem downloading the source from apt, changing the build params and compiling a .deb file ...
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0answers
7 views

CATALINA_HOME not exported properly in Ubuntu 12.04

Running Ubuntu 12.04 and Tomcat6 A Java web app (ClinCapture) attempts to access catalina_home and instead of returning CATALINA_HOME=/usr/share/tomcat6 it returns ...
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1answer
17 views

packages have unmet dependencies

How can I fix the dependency problems? Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these. The ...
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1answer
35 views

How should I manage a long running server process on Ubuntu?

I have an app (in the form of a single binary) that I need to run on one of my servers, and I'd like to be able to control its lifecycle properly. What I'd like is the following: simple one command ...
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18 views

Permissions of files and subfolders in /var/www/html (Ubuntu 14.10 + Apache2) [duplicate]

I have some questions about permissions and ownerships of folders and files in Ubuntu Server 14.10 + Apache2. Is it correct that /var/www/html is owned by root:root by default? As far as I read, it ...
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1answer
12 views

Can we run thin client to connect to Linux (Suse or Ubuntu) [on hold]

Not sure where to ask such questions, so guide me on that! I am looking to have several thin clients to use same server (system), the work involved is mostly office and browsing related works - that ...
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1answer
46 views

Server freezes after installing Ubuntu Server 14.04.2 on Dell R900

I tried this a week ago, and then went with CentOS, but decided I would rather be on Ubuntu server. So whenever I install Ubuntu server, after the install finishes and reboots, I remove the install ...
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0answers
14 views

Webmin - Edit User (email) [on hold]

I want to set an automatic email notification to go out when a user reaches a certain quota. I installed Usermin to enable additional options but when I go to "Users and Groups" under the "System" ...
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1answer
27 views

ssh unable to login as root

I am unable to login as root via ssh. i have also set the password usin sudo passwd and sudo passwd root no luck. Any recomendations on how to solve this issue? # Package generated configuration file ...
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0answers
15 views

Can haproxy run user-defined shell script for healthy checking?

When configuring HAProxy, we can assign user-defined checker by using a .sh script and xinetd. I wonder why does not HAProxy call the script directly and check exit code? I'm using ubuntu 12.04 LTS. ...
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0answers
24 views

Virtualbox Host-Only Network with DNS server installed on the guest [closed]

my setup is this one : Host : Ubuntu 14.04 Guest : Ubuntu 14.04 Virtualbox v4.3.22 I succesfully setup two networks, a NAT one and a Host-Only one. I installed as well on the guest the dnsmasq DNS ...
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1answer
35 views

Can't get logstash to work with upstart script

I've installed logstash on my headless server but I'm having a few problems getting it to work from the upstart script with sudo service logstash start. This is the output I get from ...
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1answer
39 views

Using Puppet apt module

I'm an absolute beginner at Puppet, and I'm having an issue when I try to install a package via the apt-module. class newrelic { apt::source { 'newrelic':location => ...
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2answers
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Does Ubuntu 12.04LTS have the OpenSSL heartbleed fix?

Only OpenSSL 1.0.1f or later has the fix for the heartbleed exploit. So does Ubuntu 12.04LTS have the fix? We need to use 12.04LTS for reasons I won't go into, and we can't upgrade. According to this ...
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0answers
12 views

Running python to unlock luks full disk encryption

I wish to make use of full disk encryption using Luks on ubuntu 14.04. However, i wish to make use of my own python script to carry out the functionality of generating the decryption key during device ...
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0answers
26 views

Asterisk - very high Load Average with no reason

There is a problem with Asterisk server showing high Load Average I can not explain. Ny setup is: Asterisk 13.1.0 Linux 3.13.0-24 (Ubuntu Server) Dual socket (Xeon E5-2620) server, HT enabled - 24 ...
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1answer
21 views

need some insight on this crash [closed]

I'm a new poster, but longtime reader of server fault, and I'm hoping one of you can shed some light on my repeatedly maddening crashes. This is a media server running Linux mint. Gig of ram, pretty ...
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0answers
23 views

Where can I find a good Anycast Provider? [closed]

We run a VPN Service (much like unblock-us/blockless). We have two DNS servers that handle DNS requests. Unfortunately for us, they are currently at the same hosting company. We did talk about having ...
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1answer
26 views

Where do you edit the MySQL config?

Hi I am looking to change the minimum amount of characters MySQL needs to do a full text search and I can't seem to find that file. The code I am looking to paste in is ft_min_word_len=3 What file do ...
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0answers
32 views

Tomcat is not starting although JAVA_HOME path is correct

I have linux server in which I run several Tomcats. The current Java I use is 64 bit. All Tomcats use 64 bit java but one. This one Tomcat needs to run with 32 bit Java. If I don't change anything, ...
0
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1answer
13 views

How to remove entries from lsblk?

I have an AWS EC2 instance and I tried to attach and mount couple of EBS volumes on it. Somehow mount command was taking very long time so I deleted those volumes using AWS console. Now problem is ...
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1answer
19 views

Do i have to write NS entries in every zone file using bind9?

example zone file (domain1.com): @ IN NS dns1.domain.com. @ IN NS dns2.domain.com. dns1 IN A **.**.178.93 dns2 IN A **.**.178.93 Do i have to declare IN NS in every domain zone file using bind9? ...
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1answer
35 views

Bind9 on a dedicated server [duplicate]

I am using bind9 on a dedicated vps with ip: xx.xx.xx.xx And i have vps server with webserver and its ip: yy.yy.yy.yy Question: it is correct to point nameservers, e.g. ns1.domain.com/ns2.domain.com ...
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1answer
29 views

Forgot user password and disabled root ssh signin Ubuntu 14.04 server

First I need to say that I'm not pro Linux admin but web master trying to configure server. Though I am learning. I disabled root ssh login in sake of security and then I forgot to save user account ...
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0answers
20 views

Google Cloud: Connection Refused upon reset/shutdown

I recently signed up with Google Cloud to host a small VM instance. I created a basic instance with Ubuntu Server 14.04 LTS as its OS, installed apache2, MySQL and Wordpress to it and worked on a ...
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1answer
34 views

Nginx not running with no error message (ubuntu 14.04 lts)

I am trying to start my nginx server. When I type "$> /etc/init.d/nginx start", I have a message appearing "Starting nginx: Ok", and then nothing happens. When I type "sudo lsof -nP -i | grep ...
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1answer
56 views

FastCGI sent in stderr: Unable to open primary script

Situation: Server A & server B installed same Ubuntu 14.04, same nginx version (1.4.6), same virtual host (domain.com) and joomla folder (rsync-ed from server A to B) But server A only able to ...
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1answer
66 views

Ubuntu + Nginx: directory index of “/var/www/app/my-app/” is forbidden

I keep hitting this error when trying to load up my Laravel application on an Ubuntu+Nginx server. The user should visit app.example.com/my-app and it should load the contents of ...
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0answers
17 views

Change default WEB-INF location

I'm setting up a server on AWS (ubuntu 14.04) with Apache 2.4.7 and Railo 4.2 using the apache connector and mod_cfml. I have multiple sites I am hosting, and that is working fine. The directory ...
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1answer
16 views

http requests working on KVM virtual machine, mysql not?

I have an Ubuntu server with KVM virtual machines. I allowed SSH in the firewall so I could access the host. Also I allowed incoming traffic that has state related, established. This is the full ...
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0answers
14 views

Using ppp0 via VPN for everything but ftp [migrated]

I have an ubuntu server I use to wget certain files from the internet via a VPN. I have set the VPN up using PPP0 and currently adjust the route like this: sudo route add default ppp0 Everything ...