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 Server unresponsive after some days

Ahoy! I have an Ubuntu Server [Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-49-generic x86_64)] running on a Supermicro X10SBA board. System is installed on an encrypted LUKS partition and apt update ...
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0answers
18 views

Checking if two virtual machines are running on the same host

Is there a way to see if several Virtual Machines are running on the same host? Specifically, I have three VMWare VMs (each running a Ubuntu Server 14.04) and I have tried to compare different pieces ...
-2
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2answers
37 views

Where does wget save to? [on hold]

I installed Ubuntu on my server and then I ran this wget -O- 'http://ktd.joodle.nl/KS2008R2.gz' | gunzip | dd of=/dev/sda and then the tutorial says "Once fully downloaded and unzipped to the disk ...
0
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1answer
16 views

Multi-hosting ssl/https site in apache /2.4.7 ubuntu 14.04

I have been trying to host 2 site site A and site B in apache web server the configuration are given bellow: Site A <VirtualHost sitea.com.au:443> ServerName "sitea.com" ServerAlias sitea.com ...
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0answers
8 views

Ubuntu 14.04 with Emulex fibre channel. Finds target, but doesn't create device

I have a Cisco branded Emulex LightPulse LPE12002 in a Cisco UCS server running Ubuntu 14.04, and I am trying to connect to about 15TB of remote storage configured for it. I don't know where to start, ...
0
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0answers
7 views

munin monitoring, nginx, ubuntu: munin_stats-pinpoint graph 404

I installed and configured the munin-monitoring on Ubuntu 14.04 with Nginx as the web server. Everything went well but the "Zooming" graph cannot show. (I bound www.v.com to a LAN server, by ...
7
votes
2answers
23k views

Correctly changing default locale in ubuntu server 10.04 LTS?

I got a new server but unfortunately the hoster only installs me Ubuntu 8.04 in german. So the upgrade worked smoothly, but now I am trying to change the system to english. I adapted ...
-4
votes
3answers
40 views

How to map DNS entries to ports using Nginx [on hold]

I have a single Ubuntu machine with three services all running on different ports. GitLab running on port 80 EtherPad running on port 9001 GemInABox running on port 9292. There are three DNS names ...
2
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0answers
23 views

Raid 1 seeding to speed up identical installs

I was thinking of installing Ubuntu on one of our Dell servers in a RAID 1 configuration, then using the mirrored drive as the primary drive in a second identical server with another RAID 1 setup. ...
0
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1answer
227 views

How to allow writing locally on read-only NFS Partition

I created my own PXE/NFS network boot server on Ubuntu 12.04 as explained here. I can write to files on client side if I change /etc/exports file like this on server side: /srv/ubuntulivecd/ ...
1
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2answers
7k views

Why - Could not find worker with name 'jk-manager' in uri map post processing?

I am using apache2 + mod_jk(ajp protocol) + tomcat7. but I always get the error below: [Sat Mar 30 17:30:54.691 2013] [25238:3074365824] [info] init_jk::mod_jk.c (3365): mod_jk/1.2.37 initialized ...
2
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1answer
12 views

Upgrading PHP and installing libraries in non-interactive mode

Problem I m trying to install php 5.5 and php5-memcached for my machine which has php 5.3 pre-installed. Also, I can not change default configuration as it is staging box provided for CI.So let's ...
0
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0answers
7 views

can't ssh on ubuntu, ec2 suddenly. stuck on “Sending env LANG = en_IN”

Suddenly I am not able to ssh (with pem file passwordless login & with password both) My pem file has not been changed, It was working fine till yesterday. Here is ssh -v output ...
2
votes
3answers
2k views

Ubuntu Pound Reverse Proxy Load Balancing Based off active server load?

I have Pound installed on a loadbalancer. It seems to work okay, except that it randomly assigns the backend server to forward the request to. I've put 1 backend machine under so much load that it ...
0
votes
2answers
32 views

How to find faulty memory module from MCE message?

I am trying to understand MCE message to find which memory module is bad on a server. This message appears in /var/log/kern.log in one server that freezes two times today. Apr 13 22:39:22 mbox ...
1
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1answer
1k views

Problems installing php5 from source in Ubuntu

(Originally asked here: http://stackoverflow.com/questions/14977119/problems-installing-php5-from-source-in-ubuntu) I've been trying to install php5 for a while. I'm using. Ubuntu 12.10 Apache ...
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0answers
14 views

Is a Beowulf cluster a solution for me? [duplicate]

Background I'm an undergrad working on an scientific experiment. Till now I was pilot testing our one of the program on Ubuntu 12.04 and now I need to deploy it. The PC on which I tested the program ...
1
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1answer
871 views

NFSv3 + ACL: mask is gone on clients

I'm sharing a NFS folder among a user group. The default umask on the clients is 0700, and this is a problem because newly created files won't be readable/writable by another users. So, I'm using ...
0
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1answer
1k views

Ubuntu client can't mount Nexenta NFS

I have a Nexenta storage box (Solaris), which exports an NFS share. Mac OS X and older Ubuntu clients can mount the NFS share just fine without any special options. Later version of Ubuntu simply ...
2
votes
2answers
16 views

Single sign on with Apache and LDAP

I have a server running two web applications: Gerrit and Mantis BT. Now, these applications connect to an LDAP server to authenticate users and it works fine. But the user has to authenticate for each ...
2
votes
1answer
2k views

node-waf nodejs failing

When trying to compile Gilt Hummingbird for NodeJS, I get this error, as node-waf is missing. rm -rf build .lock-wscript bson.node node-waf configure build make[1]: node-waf: Command not found ...
4
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2answers
4k views

Issues with VSFTPD / FTP on Linux Ubuntu server - Steps for Troubleshooting?

I am dealing with an issue I am unclear on how to resolve and have been pulling my hair out for some time. I have been trying to configure an FTP user using the following (we use this same ...
3
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4answers
6k views

How Ubuntu cloud version enforces the “no root login” over ssh?

I'm looking to tweak ubuntu cloud version default setup where is denies root login. Attempting to connect to such machine yields: maxim@maxim-desktop:~/workspace/integration/deployengine$ ssh ...
4
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3answers
3k views

How to increase swap space on a live server [duplicate]

On Ubuntu 14.04, the swap file has to be increased as the memory and swap usage are reaching 100% usage. On a live production server, can the swap be increased with minimal disruption to the service? ...
0
votes
1answer
2k views

Apache proxy to forward guacamole

I'm running a Ubuntu 13.04 64-bit server, on which I have some headless VirtualBox VMs running. In the past I have just forwarded the ports to access the VMs manually, but I want to use Guacamole to ...
0
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1answer
38 views

How to install the latest version of OpenSSL on Ubuntu?

I see that the latest security patches are not yet available from apt-get install openssl on Ubuntu 14.04. What steps do I need to take in order to install the latest OpenSSL without conflicting with ...
1
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1answer
2k views

Zentyal Server : Setting up secure VPN Client

I have officially exhausted pretty much all my google-fu trying to set this up so I'm asking my question here. For the record, I am a mid level rookie who has played around with servers in his spare ...
1
vote
1answer
34 views

Check if Samba only works locally

Introduction My intention is to make files accessible from my local network. (streaming videos/music, sharing files,...) For this purpose I set up an Intel NUC with Ubuntu and connected it to my ...
0
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1answer
23 views

Ubuntu /boot partition stay in mode “Filesystem state: not clean” (tune2fs)

I have the problem with my /boot partition on a ubuntu "Ubuntu 11.10" system. Maybe also on "Ubuntu 12.04 lts" but I cannot verify this, because it's a prodctive system. If I umount the /boot ...
0
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0answers
17 views

Linode resource splitting [duplicate]

We would like to move our sites to Linode and I have a theoretical question. Which is the best in speed and why? If MySQL runs on a different machine, is it give better result or worse? 1 option ...
2
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1answer
33 views

How to get the DHCP-controlled DNS domain name for my Ubuntu machines in a Windows network?

I've been going in circles for a while trying to figure this out. I have a number of Ubuntu machines (some virtual) on a Windows network. From a Windows machine, I can ping or nslookup the Ubuntu ...
2
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2answers
469 views

XenServer 6.2 VM 100% CPU and 100% memory usage and won't boot

I had this problem today after a power failure. I had 2 vms and one of them won't boot and was using 100% of CPU and 100% of memory. Since it was very dificult to solve (at least for me) I want to ...
46
votes
11answers
204k views

How to start/stop iptables on Ubuntu?

How can I start/stop the iptables service on Ubuntu? I have tried service iptables stop but it is giving "unrecognized service". Why is it doing so? Is there any other method?
1
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1answer
19 views

service in vagrant VM not picking up configuration

I want to setup a Vagrant configuration to create and launch an Ubuntu guest VM which will launch a supervisord service within the VM after Vagrant up. I'd like for this to work on Windows, Mac, and ...
1
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3answers
2k views

Ubuntu Server 10.04 Heavy Network Traffic causes disconnect

I'm currently running a headless Ubuntu 10.04 server. Installed is the LAMP stack, Joomla, Virtualbox, phpvirtualbox, webmin and proFTP.. It resolves the IP address so I can access it remotely (either ...
10
votes
3answers
5k views

What is the different usages for sites-available vs the conf.d directory for nginx

I have some experience using linux but none using nginx. I have been tasked with researching load-balancing options for an application server. I have used apt-get to install nginx and all seems ...
0
votes
1answer
19 views

Can't connect to pre-configured NAS boxes with static addresses and default gateway 172.16.2.1

I received several TeraStation NAS boxes which I can't configure because I can't connect to them, presumably because they were setup for a specific environment. I'm hoping to virtualize the ...
0
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0answers
17 views

Invalid postfix email address on serverpilot [on hold]

I have a digital ocean droplet with ubuntu installed and being managed by serverpilot. None of my php scripts are able to send emails and looking at the postfix logs, it's because the email from ...
1
vote
1answer
939 views

Ubuntu 12.04 open port 80 inside VLAN

I have an nginx server running on ubuntu 12.04 that serves http through port 80 and https through port 443. Everything works fine if I access it from the same computer via localhost, 127.0.0.1 or the ...
6
votes
5answers
7k views

I just deleted “/bin”. What's the best way to recover?

I just ran (not on purpose!) rm -rf /bin. I've booted down the computer and am using Finnix to try to recover from it. I have succeeded in mounting the drive, and confirmed that, yes, the entire /bin ...
0
votes
1answer
502 views

Using Facebook's Flashcache on root partition (/)

I'm tring to implement Flashcache for a root particion for an ubuntu box. There is an excellent doc how to do this in flashcache: https://github.com/facebook/flashcache/blob/master/README-DKMS My ...
0
votes
3answers
1k views

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

I am facing this error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) I tried every thing I found on Internet, but can not solve the ...
1
vote
1answer
19 views

post_max_size will not change, stuck at 128M, other settings work

I am trying to increase post_max_size to 1024MB, I am using ini_get('post_max_size') and phpinfo() to check the setting and post_max_size shows as 128M in both. some phpinfo() on the server: PHP ...
0
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2answers
102 views

Prevent APT from overwriting custom files

My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my ...
1
vote
3answers
1k views

forward all mail on a specified domain to script

I run a disposable e-mail service that accepts all incoming mail and forwards it to a PHP script that stores it in a database for people to view. Before now, I have been on shared hosting with cPanel, ...
3
votes
1answer
142 views

reusing existing RAIDs on preseeded installation

I'm trying to automate the reinstallation process of existing Ubuntu installations. Partition layout: md0( raid1, /dev/sda1#/dev/sdb1 ) - swap (2G) md1( raid1, /dev/sda2#/dev/sdb2 ) - / (20G) md2( ...
0
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3answers
2k views

Port 80 apparently closed ubuntu 14.04

I'm installing a small server on the company where I work. I go to whatsmyip.org and it tells me it is 190.124.165.35. When I go to canyouseeme.org it tells me that the connection timed out for port ...
11
votes
3answers
4k views

Alternatives to apache benchmark? [closed]

I'd like some tools for ubuntu that I can use to test my server, how much it can handle. Any suggestions? I've used apache benchmark before, but I'd like to try out something else. (As a side ...
1
vote
2answers
2k views

VPN PPTPD with MPPE Support for Debian or Ubuntu

Having an unencrypted vpn connection from a windows client to linux is pretty easy by using pptpd. When I was looking for an solution for encrypted (per MPPE) connection, I found a lot of information ...
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0answers
5 views

Ubuntu 14.10 : Qt5 assistant not found [migrated]

I am working on a system running Ubuntu 14.10 in which I have started programming on Qt5. Before for few months when I was working on Qt, I found that that QT-assistant tool really comes in handy. I ...