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

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6
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1answer
4k views

Could not load host key: /etc/ssh/ssh_host_ed25519_key in /var/log/auth.log

I have an Ubuntu 14.04 instance running on AWS. I was browsing the auth logs (/var/log/auth.log*), and noticed the following line appearing: Could not load host key: /etc/ssh/ssh_host_ed25519_key ...
2
votes
1answer
1k views

Ubuntu 15.04 desktop - How can I make Ubuntu boot to the command line?

I am running Ubuntu 15.04 in Virtual Box with the standard GUI. However, I want to be able to have the option to boot it to the command line and run it without the GUI. How do I do this? Have ...
0
votes
1answer
210 views

CIFS client behaving as root on server

I have a CIFS client w/a regular user. I have a SAMBA server where the only user is root. I want the user on the client system to be able to access the files on the remote server as root. So far I can'...
1
vote
0answers
132 views

IPv6 Tunnel behind NAT

I have a Ubuntu VPS with several IPv6 addresses as well as a IPv4 address. I am travelling often, so I want to set up a tunnel to my VPS which can be initiated from a laptop behind a NAT, which will ...
1
vote
1answer
230 views

Accidentally run command rm -R in Amazon EC2. Unable to login

I'm using Amazon EC2 for Magento website and WinScp to access SFTP. Sometimes I'm using terminal in WinScp to execute command. Today I need to delete some files so I used rm -R /* and forget to ...
0
votes
1answer
90 views

Installing ubuntu-desktop on ubuntu server doesn't work?

I installed ubuntu server 14.04 perfectly well. I made an sudo apt-get update and after sudo apt-get install --no-install-recommends ubuntu-desktop I reboot my machine I can access to the ...
2
votes
1answer
1k views

Ubuntu 15.04 no longer mounts samba share on boot

I recently upgraded to ubuntu server 15.04 from 14.04. I have this line in my /etc/fstab: #Samba //192.168.1.101/mediaserver2/ /mnt/mediaserver/ cifs user=*****,password=*********,iocharset=utf8,...
0
votes
2answers
172 views

How to allow this connection on the Firewall?

I am trying to connect my Ubuntu Web Server to my Ubuntu Storage Server using NFS (Network File System). But when I try to mount a Storage Server to the Web Server, I get a "Connection Timeout" ...
4
votes
1answer
587 views

Low priority process (nice 19) getting more CPU time than regular process (nice 0)

I have a server running Ubuntu server 14.04 64bit and I am having an "interesting" problem with it. I have 2 users running some programs concurrentlly - d and m. The processes of user "m" are not time ...
0
votes
1answer
517 views

DHCP for multi netwok

I hope I well get help as I got always in this excellent forum. We have over 120 networks (192, 172 and 10 ranges)and at the moment our DHCP server is windows server 2008, which I would like to ...
1
vote
1answer
5k views

How to create a SFTP (SSH) User with extremely limited permissions

i run a server on Ubuntu Server 14.04. I want to create a user that is able to connect via sftp, download 1 file and terminate the connection. The user should not be able to do ANYTHING else. Browsing ...
2
votes
3answers
3k views

What does `pbrun -u [username] dap' do?

What does pbrun -u [username] dap do? I tried to search for the dap option, but not sure exactly what this dap stand for and its functionality.
1
vote
1answer
266 views

swap option missing while installing in ubuntu server 14.04 lts

There is no option to select swap partition while installing the server version....I have tried all the possible ways to check the option and not found anything. Is their anyway to enter manually
1
vote
1answer
268 views

MAAS Power-on problem IDRAC IPMI 2.0

I'm currently having a problem in getting MaaS (v1.7) to properly provision a Dell PowerEdge R630 server. The MaaS vm itself is able to detect the server automatically, and once the dell server boots ...
1
vote
1answer
1k views

How to make TightVNC, TigerVNC, TurboVNC and other VNC servers run on a non-standard port

I used to run the default VNC server (/usr/lib/vino/vino-server) but it is unable show VirtualBox VMs. So, I have installed TurboVNC, which is designed to support 3D and shows my VirtualBox VMs all ...
6
votes
1answer
988 views

What can a Beowulf cluster help process?

So, my school has hundreds of old computers and a few gigabit switches. Coordinating with the head of district for my school, I've been granted permission to make a Beowulf cluster, using one, two or ...
1
vote
2answers
276 views

Is it possible to sign in to server via SSH without SSH key?

So what has happenend, is that I have a Ubuntu 14 server. I have my SSH key uploaded to the server, and a password. I only have one user; root. The problem is now, I formatted the computer on which I ...
1
vote
2answers
696 views

How do I setup a server side JavaScript

I keep hearing about how fast server side JavaScript is. I also have a project in which I want to use that tool. I tried Googling it, but could not find a simple and detailed tutorial on how to get ...
1
vote
2answers
257 views

WiFi Won't Reliably Connect On Ubuntu Server Bootup/Reboot

I am using Ubuntu Server 14.04.2 LTS and the micro wireless adapter TP-LINK TL-WN725N. I am having trouble with automatic connection when booting up. If I reboot 10 times, it may only connect 4-6 ...
2
votes
3answers
272 views

Make htaccess file impossible to be modified

I am running my wordpress website under Ubuntu server and the .htaccess file keeps changing every week. Now I would like to make .htaccess impossible to be modified by anyone whatsoever. I tried chmod ...
1
vote
0answers
40 views

Secure VMs on own cluster using Openstack and Ubuntu?

I recently got my hands on a bunch of old servers at work. The idea is to be able to deploy VMs across the cluster of machines and hand them out to people at my organization whenever they need a ...
2
votes
2answers
229 views

How can I use Ubuntu server 14.04 to remotely access my homenetwork?

At home I have a server with Ubuntu server 14.04 installed. This homeserver is mainly used for backups and storage of family files within the network (for this I use owncloud). I want to gain access ...
10
votes
3answers
4k views

Difference between Software Selection Servers

I am installing Ubuntu Server, and I want to know what is the difference between these: [ ] OpenSSH server [ ] DNS server [ ] LAMP server [ ] Mail server [ ] PostgreSQL server [ ] Print server [ ] ...
0
votes
1answer
542 views

Open ports for public

I am quite new to Ubuntu or any Linux family OS. I am trying to run a server on my laptop (for development reasons, however I have tried this on azure Ubuntu VM too). The server runs on 5222 port and ...
0
votes
1answer
1k views

Im trying to find out why plex isnt starting on boot any more, ubuntu 15.04 server

I looked into /var/log/boot but all it says is Starting Plex Media Server[122G[ OK ] Is there somewhere else to look? running sudo service plexmediacenter start loads the program,...
2
votes
1answer
2k views

How to configure apache and iptables to allow incoming connections ubuntu server?

I am trying to configure my server to allow apache running on port 80 to allow incoming connections. I ran this command sudo iptables -A INPUT -i eth0 -p tcp --dport 80 -j ACCEPT But Still I can't ...
1
vote
2answers
238 views

How does the system admin gets the ethernet address of computers in the network?

I am very new to system administration. Have a doubt, how does the system admin gets the Ethernet address information of the computers in the network. Actually my doubt is how does he determine the ...
1
vote
1answer
299 views

scp - files getting different sizes in destination folder

While using scp, the total file size was noticed to be 0.1G less in the destination folder and, a few files were noticed to be larger in size in the destination folder. What could have caused this? ...
1
vote
0answers
293 views

Unable to start bootlogd

Since none of my boot messages are logged on Ubuntu Server 15.04, I tried: sudo service bootlogd start Failed to start bootlogd.service: Unit bootlogd.service is masked. This is related to systemd. ...
0
votes
1answer
63 views

Is it possible to install Ubuntu server without regional (only main) mirrors in soures.list

I need to install Ubuntu Server 12.04 (LTS) on several machines. The problem is that installator asks you about your country and then puts regional mirror in atp repos list (/etc/atp/sources.list) (e....
0
votes
1answer
465 views

samba username case issue in samba 4.x

I have a problem with a samba service on my server. It's began since ubuntu have switched to samba 4.x in their distributions and continues til last one 15.04. I have a user ag on my server and user ...
0
votes
2answers
27 views

More user with admin rights to work on the ubuntu server

I have an ubuntu server. On this server runs an apache2 with php and MySQL. I am the admin of this server but I have a person, who is the admin of the apache2-server. I know, that you can't create a ...
1
vote
1answer
925 views

Port forwarding to local server

I want to be able to access a server which is running on my local machine via the Internet. I setup port forwarding on my router: Public Port Range: 80-80 Target IP Address: 192.168.0.4 Target Port ...
0
votes
1answer
128 views

VBox - shared folder stopped working

On my Win7 host I have an Ubuntu Server 14.04 guest running. I installed the guest additions and successfully mounted the shared folder. I also configured ubuntu to auto mount the shared folder on ...
0
votes
1answer
45 views

Ubuntu server 14.04 CLI visual details

Basically I am trying to find out everything that there is to find out about the visual details of CLI of Ubuntu Server 14.04. Before using Ubuntu Server 14.04, I used Ubuntu Server 10.04. When I ...
0
votes
1answer
57 views

Automatically Boot into Ubuntu without Live CD

I am trying to boot into my Ubuntu server and after updates, I can now only boot in with a live Ubuntu CD in the Grub terminal with these commands: grub> set pager=1 grub> set root=(hd1,gpt2) ...
2
votes
0answers
1k views

Apache 2.4 and mod_perl 2 on Ubuntu 14.04: local configuration

I'm trying to get Apache 2.4 configured such that I can test mod_perl 2 code locally (I should note that I have little recent experience with Apache). I've installed both of them on a machine running ...
2
votes
0answers
824 views

Installing ASP.NET and MVC 5 on Ubuntu server in VirtualBox

I've followed the instructions here and at the locations that blog post links to in order to install mono, libuv, and kvm on a virtual instance of Ubuntu 14.04. Everything seems to have worked fine ...
0
votes
1answer
72 views

Bios/Firmware/EFI upgrade changed network port config

I did a EFI/firmware update on an Intel server board and the next thing I see is that the networking just stopped working... Little deeper and I saw that the NIC port labels were changed from em1, em2 ...
1
vote
0answers
282 views

Blank Screen After installing Ubuntu server 14.04 on Dell Poweredge T20

I have a problem of Blank screen after installing Ubuntu Server 14.04 on Dell T20 server, actually while installing there is no F6 options but while installing in the VMWare i am getting the F6 option ...
1
vote
0answers
479 views

Creating a WWAN profile in NMCLI, or alternate way of connecting to 3G via CLI?

I need to connect to the internet via a TP-Link MA260. After spending hours with usb_modeswitch and other tools, I finally got the device to be recognised as a modem and have the interface wwan0. I'...
3
votes
1answer
975 views

Share Clipboard Between Ubuntu and Windows Remote Desktop

I am trying to copy paste text between Windows Remote Desktop and Linux Ubuntu Server LTS 14.04 with Mate Desktop. I have seen several posts that mention killing the rdpclip.exe process (on Windows) ...
1
vote
1answer
178 views

Change IP address Ubuntu Server

Is there a way to change the IP address of a Ubuntu Server that boots straight to playing videos. We have one set up as a Caesy Server and I cannot change the IP. I have tried booting to rescue disk ...
0
votes
1answer
313 views

Difference between using Ubuntu Desktop and Ubuntu Server? [duplicate]

Is there a practical difference between using Ubuntu Desktop and Ubuntu Server? I am making a VM of Ubuntu Server 14.04 LTS with LXDE desktop, and it's very fast with small size on disk, even after ...
1
vote
1answer
66 views

NIS translation files

I've found a problem in NIS translation to Portuguese (pt-pt). I've searched everywere and couldn't find where can I fix it (there's not Launchpad). Anyone?
2
votes
1answer
432 views

Mumblehard Malware on my Server?

this morning, I watched a monthly webinar about IT-Security. One of the actual topics was the malware "mumblehard". This malware makes your server to a part of a botnet and sends spam via email. The ...
0
votes
1answer
31 views

How do I get out of file comparison and back to the upgrade

I'm currently upgrading my system over SSH And it asked me to upgrade to a new version of ports.conf, I choose the option to compare the two differences.. How do I get back out of this without ...
0
votes
1answer
80 views

Ubuntu Server for Pakistan

I am from Pakistan and have installed ubuntu fresh copy and deleted the previous one. Now in the ubiquity installer I set my location to Pakistan and the server was set to .pk server of ubuntu by the ...
0
votes
1answer
688 views

How to make joomla appear on my apache server?

I'm new to Linux/Ubuntu 14.04 and I am trying to install joomla! on my local server to build a website which I will then transfer to a cloud server. I don't fully understand how my own server works, ...
2
votes
0answers
184 views

Can't install Ubuntu(Adaptec AIC-9410 Controller)

I have a server with Super Micro X7DB3 motherboard and Adaptech AIC-9410 controller. (http://www.supermicro.com/products/motherboard/Xeon1333/5000P/X7DB3.cfm). The latest driver I can find is for ...