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.

learn more… | top users | synonyms (2)

0
votes
3answers
35 views

Load users environment variables in a cronjob

How can I load the users environment variables in a cronjob? I have a cronjob which should start a script every minute on my Ubuntu machine: * * * * * /home/user/myscript.sh; In this script I ...
-3
votes
0answers
15 views

How do I reach devices on a DIY wireless access point? (different subnet) [migrated]

The wireless component of my router started suddenly flaking and dropping connections, so I improvised a WAP from an old netbook, wired to this router. I'm very ignorant about networking so I'm sure ...
0
votes
0answers
12 views

Unable to install Plesk 12 in Ubuntu 14 [on hold]

I have "Ubuntu 14.04.2" VPS. I tried installing PLesk 12 using Plesk installer. But it throws with the error: File downloading ...
0
votes
1answer
12 views

PSAD IPTables logging error

I installed PSAD on my Ubuntu server and then set the IPTables accordingly. But I still get this error by email: You may just need to add a default logging rule to the /sbin/iptables 'filter' ...
-3
votes
0answers
20 views

nginx not starting after password reset. 502 gateway

I reset my digitalocean droplet password just now. Now I tried "service nginx status" and it says its not running. The error in the logs was: [emerg] 3956#0: duplicate upstream "app_server" in ...
0
votes
0answers
8 views

auditd execve arguments that looks like encoded data

I'm logging all execve's in a sort of honey pot box and as such I try to make sense of the commands. There's many many of these, all with 'bash -c' and some long alpha numerical value not enclosed in ...
-2
votes
0answers
23 views

Accessing a web site on a VM

I am trying to use a VM to allow me and some other people in the company to test-drive changes to a Magento store. The VM is out of my control (mostly) and is hosted on a Windows Server box on our ...
0
votes
1answer
26 views

Segmentation fault diagnoses

I am trying to diagnose a segmentation fault issue that started to occur after upgrading to Ubuntu 14.04 (32 bit). I am running a TSM client 6.2.5-4 which worked fine up to the upgrade. I tried to ...
-5
votes
0answers
34 views

What System Does Facebook Use To Manage It Files? [on hold]

How Does Facebook Manage It System ? What System Does It Use To Manage It Files , Database , etc.. ?
0
votes
0answers
11 views

how to change MTU inside docker container which is running with ubuntu 14.04 and also on host machine with ubuntu 14.04?

I want to change MTU(Maximum Transmission Unit) inside docker which is running on ubuntu 14.04. also docker container running with ubuntu 14.04. The problem is that its docker0 interface on host os ...
2
votes
0answers
41 views

Can't run binary executable on Ubuntu 12.04

I get the following error: ./cataclysm: command not found when trying to run this executable on a Linux server over SSH. when I run ldd cataclysm, I get: linux-gate.so.1 => (0xf7759000) ...
2
votes
0answers
23 views

Icinga - Very high check latency in distributed environment

I have a distributed Icinga setup set up as follows: CENTRAL Receives passive check results only DISTRIBUTED A 227 hosts 835 services DISTRIBUTED B 67 hosts 243 ...
0
votes
0answers
9 views

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

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 ...
0
votes
1answer
19 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 ...
0
votes
1answer
10 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 ...
0
votes
1answer
17 views

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 ...
-1
votes
0answers
14 views

EMFILE - too many open files solution? [duplicate]

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 ...
0
votes
2answers
24 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". ...
0
votes
0answers
14 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 ...
0
votes
1answer
16 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 ...
0
votes
0answers
14 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 ...
0
votes
0answers
11 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 ...
0
votes
0answers
17 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 ...
0
votes
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 ...
1
vote
1answer
45 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 ...
0
votes
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 ...
0
votes
1answer
20 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 ...
0
votes
0answers
29 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 ...
-2
votes
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?
0
votes
1answer
11 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 ...
0
votes
1answer
34 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 ...
0
votes
0answers
10 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 ...
0
votes
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 ...
0
votes
1answer
21 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 ...
1
vote
1answer
36 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 ...
0
votes
0answers
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 ...
-1
votes
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 ...
0
votes
1answer
58 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 ...
-1
votes
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" ...
0
votes
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 ...
0
votes
0answers
17 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. ...
-1
votes
0answers
27 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 ...
0
votes
1answer
38 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 ...
0
votes
1answer
44 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 => ...
0
votes
2answers
27 views

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 ...
0
votes
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 ...
1
vote
0answers
30 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 ...
-1
votes
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 ...
-1
votes
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 ...
0
votes
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 ...