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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12 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
62 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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1answer
45 views
+50

Wrong version of pg_dump on Ubuntu

I originally installed postgres 9.2 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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4answers
299 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 ...
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0answers
31 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
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1answer
21 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
43 views

how do I move where percona mysql stores the databases? [closed]

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 ...
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2answers
39 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
48 views

Keeping your server safe [closed]

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 ...
1
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1answer
35 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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1answer
26 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, ...
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0answers
66 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
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1answer
71 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
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1answer
78 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
74 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 ...
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2answers
40 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
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1answer
22 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
20 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
votes
1answer
26 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
votes
1answer
55 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
53 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
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1answer
56 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
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1answer
50 views

How to access atomia DNS web app over public IP?

After installing everything and trying to access Atomia DNS's web app over public IP/port, I get "This webpage is not available". In the guide they access the web app over http://localhost:5380 but I ...
0
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1answer
73 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
50 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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1answer
142 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 ...
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1answer
35 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 ...
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3answers
124 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 ...
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votes
1answer
50 views

Fixing partition table after writing 0s to beginning

I have a sw raid10 setup like: /dev/sdX > partition /dev/sdX1 > raid md0 > lvm > fs. I'm an idiot, and wrote 4gb of 0s to /dev/md0 with dd dd if=/dev/zero of=/dev/md0 bs=4k count=1000000 ...
1
vote
1answer
79 views

Weird syslog order

Have you ever seen wrong order in /var/log/syslog ? I think that it causes only crontab. Jun 28 22:20:01 alex CRON[2327]: (root) CMD (something > /dev/null) Jun 28 22:21:01 alex CRON[2700]: (root) ...
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2answers
33 views

How can I set the default permissions for files uploaded by apache2?

When I upload files through php, it writes the file with the permissions 644 (-rw-r--r--). I have my /var/www/html folder setup with setgid, so that all files uploaded are set to a group that should ...
1
vote
3answers
51 views

How to log multiline message with logger command?

I want to log a multiline message into the system logger via the commabnd echo -e "foo\nbar" | logger But it appear as 2 logs. Is it possible to log as a single log?
0
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2answers
70 views

What should I set in postfix's myhostname / mydestination?

I am using Ubuntu, on a web server need to send out email (via sendgrid), this server never receive any external email, and I've the following hostname settings /etc/hostname = example /etc/hosts = ...
0
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1answer
26 views

Upstart init task

Here is my use-case. I have a long running server that is started by upstart. This server needs to be initialized first (populate tables in a db). This should only happen once in the life of the ...
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2answers
32 views

ubuntu 12.04 long term monitoring

I´ve a Ubuntu 12.04 server with a lamp stack running. I´m fighting with ressource scoring scripts (f.e. php scripts generating excel files). I´ve googled a lot of software but couldn´t find a fitting ...
3
votes
1answer
29 views

Exim4 crypteq with MySQL lookup always fails

I got an Exim 4.80 server on Ubuntu 14.04. I want to switch from Dovecot Auth to MySQL. The passwords are stored as crypt (with sha256, beginning with $5$). The expansion looks like this: ...
3
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1answer
162 views

Upstart: Why two processes when running as a different user?

I want to keep a nodejs app running, so I followed this: http://howtonode.org/deploying-node-upstart-monit and installed Monit and Upstart which have been working perfectly for a couple of months. I ...
0
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1answer
28 views

Linking to items outside of the web root

Here is how the directories are laid out on my server (I inherited this and cannot change at the moment) - /var/www/<stuff for the web> /home/project/src/static/<some CSS, some JavaScript, ...
0
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1answer
53 views

Why is received mail stored in ~/Maildir and sent mail in ~/mail?

So I setup my mail server eons, and I'm doing maintenance on it right now and I'd figure I'd fix a few things with it that's bugged me forever. Mainly, I'm trying to move all the mail storage into a ...
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0answers
27 views

DHCPREQUEST Operation not permitted

I am configuring iptables on a Ubuntu 14.10 VPS. However, I am having a few issues with the following: Jun 25 08:28:23 www dhclient: DHCPREQUEST of 1.2.3.4 on eth0 to 2.3.4.5 port 67 ...
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0answers
16 views

Installed 14.04 Ubuntu desktop ..want to upgrade kernel [migrated]

Whenever I boot into this OS, Im encountering lot of bugs which are making the system unstable and stop functioning. I have frequently found this error bug soft lockup - cpu#0 stuck for 22s ...
-1
votes
1answer
39 views

Installing linux-headers-2.6.32-042stab085.20 [closed]

I am trying to install virtualbox-4.3 on a VPS hosting which has Ubuntu 12.04 and kernel version : uname -r ==> 2.6.32-042stab085.20 When I try to install it, I get the following error: Trying ...
0
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0answers
20 views

Why MegaCli always returns blank?

Similar to this question (MegaCLI always returns blank output) with some differences. I am using perc h710p raid controller on Dell Ubuntu box. I download 1.01.39_Linux_Cli.zip (according to ...
0
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1answer
124 views

Unbuntu 14.04 + Nginx + PHP5-FPM + sqlite3 : pdo sqlite could not find driver

phpinfo() says I have SQLite 3.x driver for PDO. php.ini only mentions sqlite like so: [sqlite] ; http://php.net/sqlite.assoc-case ;sqlite.assoc_case = 0 [sqlite3] ;sqlite3.extension_dir = I ...
0
votes
1answer
35 views

Postfix and MySQL configuration

I have the problem with configuration of Postfix on my server. I have been used this link like tutorial for creating and configuration Postfix. ...
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2answers
34 views

Why can I not connect to jetty webserver on Ubuntu within AWS EC2 instance

Unable to connect from my webbrowser to my Jetty Server running on Ubuntu Linux SMP in Amazon Webservices EC2. I can connect using localhost whilst logged in from the machine itself i.e curl ...
3
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0answers
33 views

How do I use colors in the MOTD? [migrated]

I edited the default /etc/update-motd.d/00-header, adding some color to make it easier to read: printf "Welcome to \e[1;34m%s\e[0m \e[2m(%s %s %s)\e[0m\n" "$DISTRIB_DESCRIPTION" "$(uname -o)" ...
-1
votes
0answers
22 views

ubuntu server slow after ssh not logined in

I have a server installed ubuntu 12.04 LTS server edition. Nginx + php + mysql is installed on the server. When ssh is logined, the responsive time of the server is okay, but when i have not logined ...
0
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1answer
40 views

Webmail is “Unable to make a secure connection to the server”

I am configuring a Ubuntu14/NGinX server and almost everything is up and running (phpmyadmin, ispconfig, etc). I installed Dovecot/Postfix/Squirelmail to establish a mailserver. I followed the ...