Questions related to Ubuntu Server, and server-related packages.

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11
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2answers
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Important things to do after installing Ubuntu Server

I just installed Ubuntu Server on a VPS. To configure the server I'm reading the Ubuntu Server Guide. But the Ubuntu Server Guide doesn't tells me everything. E.g. The Ubuntu Server Guide doesn't ...
11
votes
1answer
7k views

What is Orchestra, and how do I use it?

Writing this answer, I realized I do not know anything about Orchestra. There's no link to any website or documentation on their Launchpad page. Can anyone familiar with it explain how it works and ...
11
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1answer
5k views

Should I upgrade kernel packages on EC2 instances?

On my EC2 server, when I do sudo apt-get update && sudo apt-get upgrade, I see: The following packages have been kept back: linux-ec2 linux-image-ec2 linux-image-virtual linux-virtual ...
11
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2answers
30k views

How to show current permissions of a folder

I want to find out who has what permissions on a certain folder. How would I go about viewing this? The folder in question is /srv/www
11
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1answer
11k views

Specify the time of daily log rotate

I noticed that daily log rotations which are listed under /etc/logrotate.d/ are executed in the morning around 6:40 am. This is clear from the beginning and ending of the log files. Can I customize ...
11
votes
1answer
641 views

How can I programmatically determine if a system is a desktop or a server?

Is there any way to distinguish between Ubuntu Server and Ubuntu Desktop? I have a Bash script (shameless plug) that I use to set up lightweight web servers, and I've noticed that when I run this ...
11
votes
3answers
12k views

Why is the command in /etc/rc.local not executed during startup?

I have a single command in my /etc/rc.local script that is supposed to start the update daemon for Tiny Tiny RSS during startup, but the script is not executed during startup. Why? The entire ...
10
votes
3answers
1k views

How do software updates work?

I would like to know how software updates work for my Ubuntu Server 10.10. I have been recommended to use apt-get install for installing new software and apt-get update for updating software for a ...
10
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5answers
21k views

Is there a tool for web based system administration?

What web based system admin tools are there for Ubuntu? Basically I want to setup a headless server at home and want to make it easy for my family to change some settings. I'm familiar with Webmin but ...
10
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2answers
13k views

How do I set up a PPTP VPN on my own Ubuntu Server?

Assuming I have a Virtual Private Server from someone like Linode, running Ubuntu, how do I easily set up a PPTP VPN so that Ubuntu clients can connect to it? By default, Ubuntu offers to connect to ...
10
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4answers
24k views

What is the default username for Amazon AMI images of Ubuntu Server?

I just launched one of the Ubuntu Server AMI's on Amazon EC2. I connect just fine, but I don't see anything to tell me the default login credentials. login as: ?
10
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2answers
7k views

How do I set up a service?

I have a script that I would like to run as a service on my Ubuntu Server 11.04 headless box. That is, I want to have the correct files under /etc/init.d/ and to be able to control it via the service ...
10
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1answer
52k views

How do I configure my DNS settings in Ubuntu server?

According to this page it appears to be simple. However, /etc/bind does not exist on the default installation of Ubuntu 12.04.3 LTS server. So, without installing any further software, how can ...
10
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3answers
16k views

Installing APC. Use pecl or apt-get?

I have seen guides that use apt-get install php-apc and guides that use pecl install apc. Is one method better then the other? Or is just two different methods of installing the same thing? What is ...
10
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3answers
790 views

Tab completion for commands

I've noticed on the Desktop version when typing commands like sudo apt-get install mysq I can tab complete like when resolving file paths. However in the server edition this does not happen. Is there ...
10
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3answers
7k views

How do I configure Ubuntu one on a server?

I wish to setup Ubuntu One on my 11.10 server but seems to be running into an error every time I attempt to run commands from http://manpages.ubuntu.com/manpages/lucid/man1/u1sdtool.1.html For ...
10
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4answers
5k views

How can I run Dwarf Fortress in text mode (ncurses) on my Linux VPS?

I installed Dwarf Fortress on my Linux VPS to use with dfterm. It's running Ubuntu 10.04 Server x86-32. I'm fairly certain I have all the dependencies: I've installed: ncurses ncursesw libsdl ...
10
votes
4answers
74k views

SSH Public Key - No supported authentication methods available (server sent public key)

I have a 12.10 server setup in a virtual machine with its network set to bridged (essentially will be seen as a computer connected to my switch). I installed opensshd via apt-get and was able to ...
10
votes
8answers
6k views

Making stripe_cache_size permanent

I did echo 8192 > /sys/block/md0/md/stripe_cache_size to improve my RAID performance, and it did helped alot. But I still can't figure out how to make it permanent. I was trying to set it in ...
10
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1answer
264 views

Could Ask Ubuntu run on Ubuntu + Mono?

Inspired by the old Hacker News conversation about this webiste, I'm wondering: Could Ubuntu and Mono run an ASP.NET MVC website like Ask Ubuntu? The technology is the focus here instead of the ...
10
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1answer
3k views

Will backup using rsync preserve ACLs?

I am using backuppc to backup my server. The backups are done using rsyncd. Currently, I am not using ACLs, but I am think it is good to activate it to have finer control over permissions. My ...
10
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2answers
3k views

Will `sudo reboot` on KVM host gracefully poweroff guest VMs?

Currently I manually poweroff each KVM guest before rebooting the host. However, this is getting old and now I am up to about 20 guest machines. Can I trust Ubuntu Server 12.04 to do the Right Thing ...
10
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2answers
4k views

What IRC servers are available for Ubuntu

I want to setup an IRC server in my local network. I would like to know the IRC server options available for Ubuntu. I heard that irc-hybrid is good. Do you have any other suggestions. The thing is ...
10
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1answer
3k views

How do I improve my server disk performance

I have an HP Microserver running Ubuntu 10.04 LTS. It's a low power server with 5 internal drive bays. I use it to backup my remote servers, VPSs and local laptops over the network. I want to get the ...
10
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2answers
3k views

What's the recommended way to install Wordpress from packages on a server?

I've got a LAMP server available from http://91.xxx.xx.xx/ (just an example IP address), and I'd like to install Wordpress there. I've gone as far as doing a simple sudo apt-get install wordpress to ...
10
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1answer
2k views

Why won't Samba let me delete a file

I'm not an expert at Linux--I'd say 6 on a scale of 1-10 I just set up Samba on my linux ubuntu server (no GUI, cli only). I created the smb account and connected from my mac and mounted my home ...
10
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0answers
3k views

Can I use Ubuntu as a file server? [duplicate]

Can I use an Ubuntu desktop system as a file server or is Ubuntu Server better suited for that, and how about the permissions per folder and file? Sorry but this is my first time to use Ubuntu. I'm ...
9
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3answers
17k views

How can I make a specific set of iptables rules permanent?

Is there a "best practice" or standard to make a few iptables rules permanent? I mean: automatically applied upon a system reboot? I am using a VPS with Ubuntu Server 10.04 LTS (Lucid Lynx). Thank ...
9
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8answers
12k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
9
votes
6answers
29k views

Trying to do ssh authentication with key files: server refused our key

I'm trying to setup ssh authentication with key files in stead of username/password. The client is a Windows box running PuTTY and the server is a Ubuntu 12.04 LTS server. I downloaded puttygen.exe ...
9
votes
4answers
839 views

Does installing packages manually with dpkg prevent a future upgrade path?

I manage a private network which has no internet connectivity due to the security policy of the customer. This network has a single Ubuntu 10.04 LTS Server installation (soon to be several more) and ...
9
votes
3answers
4k views

How can I install Ubuntu on a device without a screen nor a keyboard?

This is tricky. I would like to install Ubuntu on a machine that is intended to work as server, and for some reason I do not have an option to connect a screen to it. I expect this may be similar to ...
9
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1answer
27k views

How to change the default locale in ubuntu 10.10 server

I have a remote server which I installed and have been trying to unsuccessfully change the locale to french for a few hours. Below are the contents of my locale files: //============ ...
9
votes
7answers
4k views

“Remote host identification has changed” warning when connecting over SSH

I got this message today when trying to log into my server. What should I do? Whats going on? $ ssh 10.10.10.69 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST ...
9
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3answers
1k views

Is someone trying to hack into my server? What can I do?

A few weeks ago I posted a question here about some ssh issues I was having with an Ubuntu 12.04 box. Fast forward to today and I am trying to allow someone else access to the machine, but they keep ...
9
votes
3answers
28k views

KVM Bridged Network Not Working

I just installed KVM on my Ubuntu Server according to this guide : https://help.ubuntu.com/community/KVM/Installation Then prepared a bridged network as shown in here : ...
9
votes
2answers
27k views

difference between rsyslogd and syslogd

I was trying to implement some changes to syslogd on Ubuntu 10.04.02 LTS (Server edition). I found /etc/syslog.conf is not present on system, instead I have /etc/rsyslogd.d/*.conf. syslogd can be ...
9
votes
3answers
11k views

Security camera system server

I'd like to setup a Security Camera system which is captures and stores video streams into Ubuntu Server From 2 wireless Cameras. Which type of motion-detecting wireless camera you suggested? Are ...
9
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6answers
8k views

What is the difference between “service restart” and “service reload”

I'm trying to understand the difference between service restart [someservice] and service reload [someservice]. I understand that "restart" restarts the service whereas "reload" reloads the ...
9
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2answers
3k views

What is the equivalent to motd.tail in 11.04?

motd.tail is deprecated according to this bug report: motd(5) says: "The contents of this file are regenerated upon every system boot based on the contents of /etc/motd.tail." This is not true ...
9
votes
1answer
10k views

How do I run PulseAudio in a headless server installation?

PulseAudio is the standard audio server in desktop installations. However in a server installation audio services and thus PulseAudio are not provided. How do I install and make use of PulseAudio in ...
9
votes
3answers
5k views

Updating Ubuntu server from 8.10 to 10.04

I have a VPS that has Ubuntu 8.10 Server Edition installed on it and I would like to upgrade it to 10.04. What would be the correct way of doing this? I only have ssh access to it and a ...
9
votes
4answers
3k views

Allow non-sudo group to control Upstart job

I'm trying to set up an Upstart job to run on system startup, and that can also be started/stopped by members of a group other than sudo. With a previous version, I usedupdate-rc.d and scripts stored ...
9
votes
2answers
19k views

adjust resolution on Ubuntu Server 10.04?

Installed Ubuntu Server 10.04 on an old laptop and I noticed that the system is trying to show the CLI below my screen. This means that if I run a script or a program with a bunch of output, once it ...
9
votes
2answers
8k views

ca-certificates-java fails when trying to install openjdk-6-jre

I use a VPS with Ubuntu Server 10.10 x64. I want to use Java and run the command sudo apt-get install openjdk-6-jre but it fails because the installation encounted errors while processing ...
9
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1answer
2k views

deploying openstack on 6 servers

I'm new to openstack and i'm still learning. In 2 month i'll get 6 servers like: 4 servers with dual xeon e5-2630 , 96gb ram, 2 1gb ethernet and 2 500gb hdd in raid 1 DAS with 40tb of storage ...
9
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2answers
2k views

FTP connection problems in Nautilus

I have no trouble connecting to my FTP server by going to Places->Connect to server... I can then browse the FTP site to my heart's content with Nautilus for a few minutes. After a few minutes of ...
9
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1answer
6k views

`shutdown -r now` command completely shutting down instead of restarting

Hi we've just installed Ubuntu 12.04 LTS onto a new server. It's on a SuperMicro X9SCA-f Motherboard . Now we're aiming to locate this in a remote server room - however when we execute a shutdown -r ...
9
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1answer
369 views

How to restrict the number of processes a user can start?

We tried /etc/security/limits.conf, but that seems to have no effect. The used line for limits.conf looks as follows: myuser hard nproc 6 That is configuration for a server. I want to limit the ...
9
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0answers
8k views

Am I affected? Heartbleed bug [duplicate]

I've just learned about the Heartbleed Bug (OpenSSL leaking private keys), and based on the website, heartbleed.com, it says that OpenSSL 1.0.1 through version f is affected. However it leaves off ...