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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Difference between Docker in RHEL 7 and Ubuntu PPA?

I understand PPAs but Docker is new to me. With RHEL 7 out there, there has been KVM based features in RHEL 7 that's causing me to ask questions. How are RHEL's Docker and DockerFile's different ...
0
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1answer
12 views

Did grub updating bring my server down?

I have an Ubuntu 12.04 server. Last night I installed a few updates using apt-get dist-upgrade, including grub, and rebooted. After rebooting, I couldn't boot into Ubuntu. I just get a big flashing ...
1
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0answers
9 views

How to determine the values for an LDAP bind to a Windows Server 2012 DC? [ldap_bind: Invalid Credentials (49)]

Sigh. I have been trying for nearly 6 hours to get my Gitlab deployment to authenticate via Windows Server 2012 Essentials Active Directory LDAP. I am running Ubuntu 14.04 for my Gitlab server. ...
2
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0answers
29 views

Using Samba for AD and file sharing

We use a combination of Samba and WinBind to allow AD logins on an Ubuntu 12.04 machine. We also use Samba as a file server. We do not want Samba file shares to work for AD logins, but only local ...
0
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3answers
14 views

How do you setup multiple instances of vsftpd to run on different listen ports?

I need to setup 2 different instances of vsftpd. Which will listen on 2 different ports such that one instance listens on the default port 21 and the other can listen on another port 1123. Please ...
1
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0answers
14 views

LXC networking not giving outgoing connection

I have a LX container on Ubuntu 13.04 which has worked flawless for the last 161 days. I restarted the host and started all the LXC's and I'm allowed to connect to the LXC containers from the outside. ...
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2answers
63 views

512 IP in one NIC - ubuntu - is this possible? [on hold]

Let's say that I have 1 network card and 2 blocks /24 of IP to assign: 150.50.50.0/24 150.60.60.0/24 I know, that I can only add 256 virtual interfaces to each NIC from ...
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0answers
12 views

How to replace memcached with couchbase? [on hold]

I have a strange problem. I have a codebase of website written in PHP using Symfony Framework. I have seen code using memcached at many place. I want to replace memcached wit couchbase. Is there a ...
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1answer
23 views

http stress testing my ubuntu machine

I need to check how many concurrent clients can connect on my laptop having ubuntu OS. Can Jmeter be used for this? i downloaded it and was playing with it. But i am not sure about those input fields. ...
0
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1answer
15 views

Server shuts down during apt upgrades (specifically libdbus)

I woke up this morning to find my VPS down. I brought it back, couldnt find any reason for it being down (nothing in the syslog, etc) so figured it was my crappy provider. I ran apt-get upgrade and it ...
1
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3answers
37 views

How to find out the cause of linux server crash after rebooting

Here is the deal, come to work only to find out one server isn't responding at all, the machine is turned on, but the screen doesn't show anything att all, doesn't respond to keyboard inputs (I don't ...
0
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2answers
12 views

Auto start Rails project upon boot (ubuntu)

I've been searching on this for 2 days. I tried three ways: 1.Add some file in init.d Ok I have to admit I dun know how to see error log , seems promising but doesn't work 2.Try start thin server ...
0
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1answer
11 views

Zenoss - install.sh doesnt ask for mysql password

i'm trying to install zenoss on a ubuntu-14.04 virtual machine. I followed the following guide "https://help.ubuntu.com/community/Zenoss". After some errors with dependencies, I have the following ...
0
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1answer
24 views

DHCP server hardware

I have a user who needs to set up a DHCP Server for about 8000 users. Can I set it up on regular PC hardware. So far we have not set it up for more than 200-300 users. Are there anything which I need ...
0
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1answer
53 views

Failed tls handshake. Does not contain any IP SANs

I'm trying to set up logstash forwarder, but I have issues with making a proper secure channel. Trying to configure this with two ubuntu (server 14.04) machines running in virtualbox. They are 100% ...
0
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1answer
24 views

sed fix for BusyBox - boot fail unable to mount LVM

BusyBox why u no vi?! Summary: Ubuntu 14.04 Server after upgrade first boot, only boots to BusyBox v1.21.1 initramfs with "gave up waiting for root device" due to missing /dev/mapper/xxx-root as ...
0
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0answers
22 views

Nginx error: “File not found”…coming from someone else's domain

I set up nginx to serve from an Ubuntu EC2 instance a few days ago, and today I checked the error logs when I encountered 504 after 504 in the browser. I found the following in my error.log: ... ...
0
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0answers
9 views

WP forwarding remote discrete servers?

I need some help with a really odd server configuration: I have a server which is wired (eth0) and it will be serving a series of WP web pages. From this web page, using a forwarding product, I ...
2
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1answer
43 views

Hardening Ubuntu with Docker.io

I am new to Docker so please keep in mind. The old way: Create cloud instance Add Ubuntu OS Provision / harden Linux via Chef Develop app locally Deploy via Capistrano or some other ...
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0answers
9 views

Wrong version of pg_dump on Ubuntu

I originally installed postgres 9.3 on Ubuntu and later upgraded to 9.3 according to the instructions here: http://www.postgresql.org/download/linux/ubuntu/ (using the postgres apt repository). ...
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0answers
9 views

My system won't update 404 error [on hold]

I get a 404 error when trying to do system updates on my Ubuntu system but my internet connection is fine. What can I do to do my system updates also its not just system updates, i also can't install ...
4
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3answers
75 views

What is the cause of this kernel panic?

I've just set up a PXE boot server on Ubuntu 14 as it is described here https://help.ubuntu.com/community/DisklessUbuntuHowto. I have only remote access to the client server via KVM. The boot process ...
0
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0answers
14 views

Trying to create a pre-revprop-change for editing message on commit

I'm trying to add a hook to svn so that you can edit messages on commits. But whatever I do I get the same error message. Revprop change blocked by pre-revprop-change hook (exit code 255) with ...
1
vote
1answer
14 views

Ubuntu subdomain not working

I'm trying to set up a subdomain with Apache2 on my Ubuntu droplet, I've followed this tutorial to the T but every time I navigate to my subdomain, I get the default apache landing page. So I've set ...
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2answers
40 views

how do I move where percona mysql stores the databases?

I'm running low on disk space and want to move my database's to a new disk (NAS). I have no clue how to do this. Any help is appreciated. I'm using Ubuntu 13.04 and the latest version of Percona ...
0
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2answers
26 views

Puppet node does not pull changes from master

I have followed the following three How-To's http://terokarvinen.com/2012/puppetmaster-on-ubuntu-12-04 https://help.ubuntu.com/12.04/serverguide/puppet.html#puppet-installation ...
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1answer
46 views

Keeping your server safe [on hold]

I have a typical vps server with some custom sites on it running on port 80, a mail server, I don't have a DNS server and it is a default ubuntu 12.04. I don't have any admin panel, I am doing all the ...
0
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0answers
29 views

Ubuntu 14.04, VB 4.3.12 No USB devices connected [on hold]

Installed Ubuntu 14.04 and latest versions of Virtual box and the Extensions. My username is part of the vbox group, I installed dkms The guest is Windows 7 and has been working fine with the ...
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0answers
12 views

Crontab inscreen command and outsreen command [on hold]

I have a ubuntu linux server and on that I have a minecraft server. At the startup he starts the minecraft server and he restarts every 6 hours. What I have now is that the server forced stops and he ...
1
vote
1answer
27 views

Citadel Mailserver Installation floods every root console with error messages

I have installed Citadel (apt-get install citadel-suite) on my Ubuntu 12.04 Box. I configured it for LDAP authentication. After the installation every root console got flooded with error messages of ...
0
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0answers
18 views

VPN and router pass-through

I have been having trouble with VPN on my router, so I thought that since it allowed VPN Pass-through, I would set up a VPN server on an Ubuntu box here, and pass through to that. I have set up PPTP, ...
0
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0answers
33 views

Install Ubuntu 14.04 LTS stuck at * starting network connection manager

I am installing Ubuntu 14.04 LTS (64 bit), the installing procedure stuck at: starting network connection manager
0
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1answer
33 views

Issues with Kerberos trying to log on Samba 4 Active Directory Domain Controller from Windows

I'm trying to setup an Ubuntu Server with Samba 4 as Active Directory Domain Controller and I'm getting an error when I try to connect from a Windows machine. Here's Samba's log of the error (I've ...
1
vote
1answer
53 views

apt-get on aws won't install zip

I'm running Ubuntu 12.10 (GNU/Linux 3.5.0-21-generic i686) on AWS. When I try and install unzip I get the following errors: sudo apt-get install unzip Reading package lists... Done Building ...
1
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1answer
48 views

6 times slower disk write in RAID10 on Ubuntu 14.04 after rebuild

OS: Ubuntu 14.04 LTS Software Raid 10: 4x120Gb Intel 530 SSDs Initial tests: 1.2 GB/s Write 5.2 GB/s Read I did some tests to check if everything will go alright with a failed disk: I set as ...
0
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2answers
34 views

Use different default documents for apache2 virtual hosts

I am setting up several sites on an ubuntu 14 server with apache2. I copied 000-default.conf and created a site1.conf. Then I changed some settings, reloaded apache2, and now almost everything ...
0
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1answer
27 views

Bash function hangs while command run perfectly without function

Following function hangs : ssh() { local RESULTS; RESULTS=$(ssh $USERNAME@$SERVER $SSH_COMMAND1); echo $RESULTS; } ssh; while if i run following commands they work fine : ...
0
votes
1answer
21 views

Ubuntu Partition Problems (server down)

So I screwed up majorly when adding a new hard drive to a server. I accidentaly ran fdisk on an existing partition, it told me it was not recognized, and so I pressed w to write. Now when I try to ...
1
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0answers
10 views

HBase issue with *some* regionservers connecting

I have an HBase cluster that is working, and I'm attempting to add some new servers to the cluster, but "SocketException: Invalid argument" and "FailedServerException: This server is in the failed ...
0
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1answer
17 views

Prevent TCP Connections from Timing out on Restarting Service

On Ubuntu 14.04, an app communicates with clients at intervals of about 1 per sec to 1 per min. However the service have to be restarted regularly and this causes all the connections to drop/timeout. ...
0
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1answer
45 views

How to configure sendmail properly with PHP on EC2 (no SES)?

I have been struggling with sendmail for couple of days with no luck. I am trying to setup relay host, after following the answers in this question ...
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votes
1answer
43 views

Why I am not able to ssh as root?

root@web04:~# ssh -v -i.ssh/id_rsa root@11.11.11.4 OpenSSH_5.9p1 Debian-5ubuntu1.4, OpenSSL 1.0.1 14 Mar 2012 Warning: Identity file .ssh/id_rsa not accessible: No such file or directory. debug1: ...
4
votes
1answer
36 views

ssl certificate installation on tomcat

I am trying to create a new certificate for my scala play framework on ubuntu but I cannot import my key with keytool. I haven't been able to figure out what is causing it so I thought I'd see here if ...
0
votes
0answers
35 views

How to access atomia DNS web app over public IP?

Don't know if anyone here used Atomia DNS but after installing everything and trying to access web app over public IP and port that Atomia uses, nothing happens. I get "This webpage is not available". ...
0
votes
1answer
44 views

CIFS mount in fstab succeeds on IP, fails on hostname written in /etc/hosts

I wonder why my Ubuntu Server 14.04 LTS has problems resolving a hostname from fstab. I tried to mount the following entry: //NAS-5h2-20/backuppc/ /mnt/backuppc cifs ...
0
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1answer
39 views

how to install lafilefixer in ubuntu

I am getting following error while installing freeswitch on Ubuntu. libtool: link: cannot find the library /usr/src/freeswitch/libs/apr-util/xml/expat/lib/libexpat.la' or unhandled ...
0
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0answers
10 views

APNS Certificates on Ubuntu [closed]

I read this tutorial: http://www.raywenderlich.com/32960/apple-push-notification-services-in-ios-6-tutorial-part-1 He is generating the certificate signing request on his Mac using Keychain Access: ...
0
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1answer
71 views

FTP via vsftpd not working on Amazon EC2 Ubuntu 14.04

I'm trying to get FTP access to my EC2 instance. I've run through a few guides and still nothing is allowing me to gain access over port 21. I've opened ports 20, 21, 22, 80, 1024-1028, 50000 - 51000 ...
0
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1answer
28 views

Ubuntu IPv6 port redirect using ufw

I'm trying to configure port redirection from port 80 to 8080 on server with both IPv4 and IPv6 support. The OS is Ubuntu 14.04 with the 3.2* series kernel. It is a production server, so I don't want ...
1
vote
3answers
115 views

What is the Ideal value for Worker Processes in Nginx Config?

I have 31GB RAM 8 Core Web Server with current load of 3k per min. Currently worker_processes parameter in nginx config is 4 which as per my understanding means only 4 cores would be used. But when I ...