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

learn more… | top users | synonyms (2)

8
votes
2answers
3k views

What is the minimum size of the LAMP server?

I installed server 10.10 with LAMP+OpenSSH. It is about 1.1GB. Can I reduce the total size of the server? AFTER SOME EXPERIMENTS The full LAMP server is under 1.0gb /dev/sda1 7.5G 914M ...
8
votes
2answers
2k views

ssh key administration for many users, servers

My company has some remote Ubuntu servers. The access to these servers is controlled by ssh keys. Managing these keys is quite a pain, especially when an employee leaves or joins the company. Is ...
8
votes
3answers
24k views

How to enable ufw firewall to allow icmp response?

I have a series of Ubuntu 10.04 servers and each one has ufw firewall enabled. I have allowed port 22 (for SSH) and 80 (if it's a webserver). My question is that I am trying to enable icmp echo ...
8
votes
2answers
3k views

Tons of general protection faults

I recently upgraded my home server from Ubuntu 10.04 to 12.04.1. It runs the linux-image-server kernel, x86_64 arch. There's nothing particularly unusual running, I think -- a deluge daemon, apache2, ...
8
votes
1answer
942 views

AppArmor denying a mount operation

How do I convince apparmor to allow this operation? [28763.284171] type=1400 audit(1344273461.387:192): apparmor="DENIED" operation="mount" info="failed type match" error=-13 parent=7101 ...
7
votes
6answers
14k views

SSH server not working (respawns until stopped)

I have a running Ubuntu Server 10.04.1. When I tried to login to the server via ssh, I could not. Instead, I got connection refused error. I tried to ping the machine and I got reply! So, the clear ...
7
votes
2answers
23k views

Port 3306 appears to be closed on my Ubuntu server

I have two VPS servers, and both have MySQL installed, one for testing and one for development. One of my servers won't let me connect from outside. With the user; 'mytestuser'@'%' According ...
7
votes
2answers
784 views

How do I upgrade to Ubuntu 10.04.1 LTS [duplicate]

I want upgrade from Ubuntu 10.04 LTS to Ubuntu 10.04.1 LTS. Is there a basic update? How do I do it?
7
votes
5answers
7k views

How can I sync my home folder over network and internet?

I use my laptop with Ubuntu-desktop to do all my work, but I also have a low-end desktop over at my office just sitting there. I've decided I'm going to install Ubuntu-server on it and use it to ...
7
votes
2answers
58k views

How can I set my Ubuntu 12.04 LTS to boot to console without GUI? [duplicate]

So I installed Ubuntu server to run some tests on a VM. For various reasons I couldn't get a specific DEB file, and instead of using a shared folder I decided it would be a good idea to install ...
7
votes
3answers
5k views

How to use ubuntu server full screen in virtualbox?

I have installed Ubuntu server 12.4 in Oracle Virtual box, after completing installation, i cant use the Ubuntu server in full screen,guest additions present in virtual box will work in ubuntu ...
7
votes
5answers
5k views

How to abort a stuck command in ubuntu server?

I know there is ctrl+c, but sometimes that doesn't work. In Ubuntu desktop I can just close the terminal window and open a new one when this happens, but how would this be solved using the CLI in ...
7
votes
2answers
2k views

Scheduling a reboot on a remotely located Ubuntu server

I work on a ubuntu server located in a place where I don't usually go. I use ssh over openvpn to access it. The machine has multiple wired interfaces, many static routes and multiple default gateways ...
7
votes
1answer
442 views

Is 97 processes on an Apache2 server normal?

I have 97 processing running, that's what top reports. I only have the base install + apache2 and php5. Could it really add that much stuff? Or does the ubuntu-desktop have like 300 processes? I ...
7
votes
4answers
11k views

How can I get ddclient to work with freedns?

I use the dynamic DNS service at freedns.afraid.org for my 12.04 server. I had assumed that the protocols would be standardised and that ddclient would just work, but apparently not. I get this ...
7
votes
3answers
19k views

How to disable GDM from being automatically started?

After Ubuntu Server 12.04 installation, I installed Xubuntu just to have a minimal GUI: sudo apt-get install x-window-system-core sudo apt-get install --no-install-recommends xubuntu-desktop gparted ...
7
votes
5answers
73k views

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

I have mailserver configure using dovecot+postfix+mysql and it was runnig fine in the server(Ubuntu Server). But during last week it stopped working correctly. It doesn't send email. When I try to ...
7
votes
2answers
14k views

Forceably set permissions when running rsync

Currently I am backing up gigabytes and gigabytes of data from a live server to a backup server using an rsync/ssh combination script, allowing for automated operation every night with a cron job. ...
7
votes
1answer
2k views

Dynamic /etc/resolv.conf file?

I have several Ubuntu servers. Two of them are working as DNS servers. One of my name servers (let's call it DNS1) went down for maintenance. I sill had another DNS server running (DNS2). All other ...
7
votes
1answer
5k views

Server does not recognize second VirtualBox Adapter

I have installed Ubuntu Server 10.04 as a guest operating system under VirtualBox 3.2.10. My host system is Ubuntu 9.04 I have configured two network adapters for the guess (a NAT one and a host-only ...
7
votes
1answer
353 views

Why are certain things able to get through ufw firewall?

I should say up-front that I am TOTALLY new to Linux, Ubuntu, and the technical side of networking. I am setting up Ubuntu on a server computer and have learned a bit about configuring the ufw ...
7
votes
3answers
3k views

Why is X11 a security risk in servers?

I remember reading that servers do not have a GUI because X11 is a security risk. Why?
7
votes
2answers
13k views

What server control panels are available for Ubuntu Server?

As a dedicated Ubuntu server or as a VPS, I am looking for a web control panel, something like cPanel which is something like a web administrator for a server. I have not used any on Linux since I do ...
7
votes
3answers
4k views

How can i limit disk space usage for one user?

Like.. User john123, you can only use 100mb of my harddisk. User jake155, you can only use 250mb of my harddisk.
7
votes
3answers
3k views

'/'var/www/' vs '/home/$USER/public_html'

I recently started using Ubuntu as a LAMP server. I've come across plenty of tutorials that say to place the files at '/var/www/' and I've also seen others that put them in '/home/$USER/public_html/'. ...
7
votes
3answers
13k views

How to get Bus and Device relationship for a /dev/ttyUSB

I need to write an script for restart USB dongles. I have all tools but I can't link my /dev/ttyUSBx to physical BUS and DEVICE. An issue is that I have three dongles with the same id vendor and id ...
7
votes
2answers
5k views

Clock drift even though NTPD running

I'm having a problem with the clock drifting on my PC. I'M running Ubuntu 10.10 on an somewhat crusty IBM e-server (1.5GB RAM, 2.4GHz CPU) ntpd is running (started at run level 2) servers are ...
7
votes
2answers
288 views

Are there alternatives after the official support time stops?

I'm currently running Ubuntu 8.10 on a system. It works very good but I did a lot of tuning (it's a server) to get it working. I'm aware that I need to upgrade to a new LTS version of Ubuntu if I have ...
7
votes
4answers
11k views

How to stop Apache access.log grooving every few seconds?

I installed a fresh Ubuntu 12.04 Server + Zend Server CE (MySQL / PHPmyadmin) from deb http://repos.zend.com/zend-server/5.6.0_ubuntu1204/deb server non-free Repository. My apache2/access.log looks ...
7
votes
2answers
984 views

Is the copy speed from ext4 to NTFS the same as from NTFS to NTFS?

I've created a file sharing server with Ubuntu server and samba, the drive for sharing is on ext4, but all the users are on windows 7/XP Would the copy speed be faster if the drive would be on NTFS?
7
votes
4answers
36k views

SSH error: Permission denied, please try again

I am new to ubuntu. Hence please forgive me if the question is too simple. I have a ubuntu server setup using amazon ec2 instance. I need to connect my desktop (which is also a ubuntu machine) to the ...
7
votes
2answers
2k views

ext4 to btrfs conversion: how long can it take? space requirements?

I started btrfs-convert for my ext4 partitioned hdd. I did a fsck first which was fine. So since it is running over 4 hours now (1.) I wonder if it will ever finish ? I read multiple articles ...
7
votes
4answers
3k views

MaaS Enlistment through 12.04 installation CD fails

I am trying to enroll my nodes in my MaaS cluster. I am doing this by booting them from the 12.04 installation CD, and choosing the MAAS installation option. I'm only trying to set up one node right ...
7
votes
5answers
5k views

Single server, multiple users, each with his own virtual machine

Our school system has a low budget to update our computers, so I've thought maybe I could buy only one server (a powerful one) and hookup 30 students to one server. On the server should be 30 Ubuntu ...
7
votes
1answer
3k views

Which kernel to use for server VM running on ESX

We run several ubuntu virtual machines on ESX server. In ubuntu, there are various kernels available: linux-generic-pae linux-generic linux-server linux-virtual Which one is the best choise for ...
7
votes
2answers
2k views

“kernel panic not syncing out of memory and no killable process”

I'm installing Ubuntu Server 10.04 on a Pentium 3 with 256 MB RAM, I select install, continue with the process and when I see the "configuring apt sources" progress bar then I got the error: "kernel ...
7
votes
2answers
3k views

Why do I see a CRON session opening and closing every hour in /var/log/auth.log?

I am quite fresh with Linux as a whole, so this may be a silly question - but I would still like to know the answer This morning when I look at my /var/log/auth.log (which I've been told to make a ...
7
votes
2answers
20k views

How can I host a domain/website on my new VPS?

I am an average Ubuntu user and currently i decided to strengthen my knowledge in Ubuntu. Since i am a web developer, lately i decided to setup my own web server powered by Ubuntu. I just bought an ...
7
votes
1answer
718 views

By default, what system messages get mailed to root?

I recently installed ssmtp on my server to enable e-mail notifications for a redmine install. While I was verifying everything was setup correctly I got an e-mail notification about a failed cron ...
7
votes
4answers
554 views

Are the any commercially available, easy to use, media servers running Ubuntu?

This thing is one of the be-all-end-all solutions to people wanting to access their multimedia files around their house, but it runs Windows Home Server. Is there any similar device out there running ...
7
votes
1answer
12k views

How to create a user for ftp server?

I'm using vsftpd. I need an ftp server for my web server, I can login under my account of course, but I can't do the main thing it's meant for and add/edit/remove files in my var/www directory. ...
7
votes
1answer
817 views

AWS Ubuntu Instance - User rights

I am running an instance of Ubuntu on Amazon Web Services, all working pretty dandy. I've got one little snag that i'm trying to find the answer to atm. Amazon forces you to have another user other ...
7
votes
5answers
9k views

Install Ubuntu 10.10 server from USB (with GRUB4DOS)

I have had no problem installing Ubuntu desktop when I boot off a live USB, but the server version has given me some trouble. I think it has to do with the way GRUB handles drivers. When the server ...
7
votes
1answer
5k views

Setting up gitweb/apache2

I have recently began storing code, that I write on a local server I have at home. I was hoping to start a gitweb instance at home so I can see commits and track progress with my other team mates. I ...
7
votes
1answer
671 views

Can I see more details of an aptitude dist-upgrade? [duplicate]

When I type aptitude dist-upgrade I get for example: Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information ...
7
votes
3answers
3k views

Best log file monitoring tool for ubuntu server

I'm trying to find the best Log File monitoring tool for Ubuntu 9.10 server? Is there any web-based gui tool which could be operated by anyone, that monitor any log files? I already tried splunk and ...
7
votes
1answer
358 views

Cloud server stuck on dpkg --configure -a

I have an amazon micro instance which runs one or two things for me. The config is minimal, it mainly acts as a host for a java application and couchdb. I tried to install curl today and got this ...
7
votes
4answers
430 views

Cannot SSH from outside LAN despite port forwarding seems fine

Running Ubuntu 12.04, I've set up the OpenSSH server. I can connect from within LAN, but not from outside. I am using the same sshd_config file as on my other Ubuntu 12.04 machines (that sit in a ...
7
votes
2answers
4k views

SSHFS mount does not work on startup using fstab

While I am able to mount a folder from a remote server using mount folder the entry in fstab is giving Connection reset by peer: I have the following in my fstab sshfs#username@remote:/folder/ ...
7
votes
1answer
9k views

How do I set ufw to allow internal network connections?

I'm configuring an Ubuntu Server for my home network to handle NAT and firewall. I've configured dnsmasq and verified that it's working correctly. I want all connections from my internal network to be ...