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

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2
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139 views

Upgraded from 8.04 to 10.04, cannot boot

I upgraded an old, handed down web server with a heavily customized wordpress website from 8.04 Server LTS to 10.04 Server LTS using a guide I found on Ubuntu. This seemed to go fine. There were a few ...
2
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105 views

Infiniband + Maas?

I'm looking at setting up an HPC based on Mellanox Infiniband rather than Ethernet. Because I have many nodes to manage, I was looking at trying something new, like MAAS. I know Infiniband cards ...
2
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1k views

Xhost: Unable to open display (setting up Vino on VPS)

I'm currently trying to setup Vino (the VNC server) on a VPS of mine. However, whenever I try exporting and opening the display, it doesn't work. I've looked for hours last night for a solution for ...
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0answers
918 views

Problem connecting to isp server using xl2tpd as client. Ubuntu server 13.04

I have followed guides found on google and ubuntu support pages and can get xl2tpd connection up but only under the following conditions: 1 - ADSL model must be configured and connected to the ISP ...
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67 views

Which has precedence in Cobbler, profile or preeseed?

For Cobbler on Ubuntu 12.04 server regarding the network configuration (or any settings for that matter) which has precedence during the PXE install - the profile (cobbler system add ...) or the ...
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474 views

Terminal error: i2c i2c-0 sendbytes error -110

I am currently using a clean installation of Ubuntu Server 12.04 AMD64 and I keep getting errors popping up saying: [ xxx.xxxx ] i2c i2c-0: sendbytes: error -110 where x is the seconds the ...
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466 views

Server in LAN with two network cards, can't telnet / ping to the second even if it works

I have an issue with an Ubuntu 12.04 LTS (updated) server. For reasons too long to detail, it has got one eth0 interface assigned to 192.168.1.9 and one wlan0 interface assigned to 192.168.1.10. Both ...
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2k views

Postgresql starting error

The postgresql 9.1 database server is not starting. Can anyone help in this. * Restarting PostgreSQL 9.1 database server * Removed stale pid file. The ...
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370 views

Awkward GPG error with Ubuntu Server running “sudo apt-get update”

I just installed raring 32 bit server on an old machine, it seemed to work fine, but when I try to run sudo apt-get update I get this error (I'm translating from Italian) E: GPG Error: ...
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2k views

SSH connections rejected after UFW allow 22

I am trying to setup UFW on a 12.04 server. SSH works great with UFW off. Setting root@ugvps:~# ufw enable Firewall is active and enabled on system startup root@ugvps:~# ufw status Status: active ...
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437 views

How do we allow a certain mac address in a FORWARD chain through iptables?

I set the iptables rules in default. # IPTABLES IN DEFAULT iptables -P INPUT ACCEPT iptables -P OUTPUT ACCEPT iptables -P FORWARD DROP How will allow a certain mac address in a forward chain? I ...
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2k views

Printer on CUPS installed, but won't print

This issue really annoys me. I got a new printer and want to make a network printer through my home server running Ubuntu server. CUPS installation went fine, I connected the printer to the server ...
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280 views

Setting up Postfix with Apache Virtual Hosts?

So, I was trying to setup multiple Apache Virtual Hosts. Everything was O.K, LAMP worked fine except for one and big problem: Postfix. I have two domains. And two PHP/MySQL applications running on ...
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940 views

Another LXC Puzzle

So my server is running... Distributor ID: Ubuntu Description: Ubuntu 13.04 Release: 13.04 Codename: raring I stumbled onto lxc when I trying to find something to replace vmware on a small ...
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603 views

Ubuntu Server changing Monitor from DVI to VGA

i have a little problem with my Ubuntu Server 12.04. I installed it yesterday with a DVI monitor connected. With the DVI Monitor, everything works fine. But when I try to connect it with an other ...
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135 views

Ubuntu server boots, then shows blinking cursor

My Ubuntu server boots but then shows a blinking cursor. It passes GRUB and I get the boot log output and all seems fine, however I get no shell after booting. I can boot into recovery just fine ...
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3k views

How do I setup a fine grained preseed with tasksel set to manual?

I am trying to preseed a netboot install of Ubuntu 13.04 (Raring Ringtail) x64. Work Setup My preseed configuration works fine as long as tasksel is not set to manual. For example: [...] d-i ...
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527 views

Trouble with local server, URL not found errors with some, but not all local sites

I am setting up my Ubuntu laptop for my new job and I am having a strange issue. They have a crazy environment setup that I got working on my local Ubuntu 12.10 machine with Apache and PHP 5.3 (had to ...
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0answers
220 views

Timestamp appears to be wrong on some log files

When I use scp to remotely check my server logs, the "last changed" timestamp on some files appears to be set in the future. I've double checked the local time and timezone settings on both my server ...
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0answers
524 views

How to get HAVP(HTTP Anti Virus Proxy) working?

I have a Ubuntu 12.04 server with HAVP(HTTP Anti Virus Proxy) with ClamAV and AVG. My dhcp server is a OpenBSD 5.2 router. If I connect manually to my Ubuntu server its works great, but when I'm ...
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1k views

Installing 12.04LTS Server on a Fake RAID10

Scenario Install Ubuntu 12.04LTS Server on a RAID10 with boot on a RAID1. 4 - 2Tb SATA Hard Drives 3 Partitions (/boot, /, and swap) boot (256Mb from each disk) setup in RAID1 /dev/md0 partition ...
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141 views

Server setup for multi-site development web server with multiple contractors logging in?

While I've been using Linux for many years as a desktop OS I'm still a novice at the more serious server admin stuff. Basically I'm looking for a best practices that covers: Hosting many domains (I'm ...
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3k views

Server 12.04 machine does not respond to arp broadcasts

I just ssh'd into my old netbook (running as a CUPS server) running ubuntu server 12.04 and did a dist-upgrade (haven't done one in a while). Upon rebooting the machine, I can now no longer access it ...
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247 views

How to choose LVM mapping mode when installing Ubuntu server 12.04?

I would like to create a volume group with striped mode on top of 2 RAID-1 devices. The issue here is I cannot choose striped when configuring LVM at installation stage. It's always be linear.
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422 views

when installing /boot inside a lvm group, where do I install the boot loader?

I am setting a personal file/cloud server based on ubuntu server 12.04 and owncloud but there are certain things about the partitioning that I can't get my head around... Let's say for example I want ...
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645 views

Squid or DansGuardian: Which should pass content to an antivirus product for scanning?

I have an Ubuntu Server12.04 installation acting as a proxy server using Squid 3.1.19. Squid has been configured to pass content to SquidClamAV 6.10 to check for viruses (using icap): icap_service ...
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0answers
192 views

VLC 2.0.3.. can't enable http interface

I'm new to linux world, and happy with my ubuntu 12.04 64-bit server. I am working in a re-streaming project and got stuck around access the stream in the server. Already fixed quite issues, except ...
2
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0answers
353 views

What is an appropriate way to install Lustre on a ubuntu 12.10 cluster

I have a 24-nodes cluster installed with Ubuntu 12.10. What is the suggested way to install a relatively new Lustre version on such a cluster?
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0answers
511 views

dhcp server configured in ubuntu on vmware

How can I test a dhcp server running on Ubuntu in vmware? My dhcp configuration is: ddns: update-style none; default-lease-time 600; max-lease-time 7200; subnet 192.168.56.0 netmask 255.255.255.0 { ...
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526 views

ubuntu server 12.10 get input signal out of range on HP DL380 G4

After installed ubuntu 12.10 server on HP DL380 G4, I can't boot into it. And the LCD got message "Input signal out of range, recommened settings is 1280x1024". I can't see the terminal and tried ...
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208 views

unable to install Ubuntu Cloud setup on VMWare

I guess this is trivial and most commonly asked question, but I'd reiterate it again here as I'm not able to find a correct solution. I'm trying to install Ubuntu Cloud setup on VMWare using the ...
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0answers
3k views

Can't capture video from usb-webcam with ffmpeg

i have a hama usb webcam which works fine with the fswebcam command to capture single frames but when i try to capture a video with ffmpeg i get an error: sudo ffmpeg -f video4linux2 -i /dev/video0 ...
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334 views

command line mount helper for Ubuntu server?

Under Ubuntu there are several mount helpers to support easy mounting of encrypted (cryptsetup/luks) removable media such as USB drives. Under Gnome/Unity/XFCE a requester is opened, just enter the ...
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0answers
697 views

Create a HotSpot which requires a username and password

I wish to set up a wireless access point which requires a username and password in order for clients to use the internet. The network setup will be internet modem connected to an Ubuntu Server (2 ...
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565 views

is there a unified management console for Ubuntu 12?

is there something similar to the management console in Windows for example GUI based Device Manager In windows server there is a server management console through which we can manage all system ...
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0answers
1k views

OpenVPN not listening on port

I just set up an OpenVPN server on a VPS but sadly I can't connect to it. When I made a portscan I found that my custom 11940 port where openvpn should listen is closed. The default 1194 port is also ...
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0answers
251 views

Is it good practice to backport source packages from newer Ubuntu releases?

My plan is like this: Say I'm running 12.04 LTS, life is good, but its packages guadually become old. Then 12.10 is out, I add a deb-src line in my sources.list, and backport (download source, build, ...
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19 views

/etc/skel doesn't work with xenial

We have a script which works perfectly with Xubuntu 14.04 and an Ubuntu Server with ldap : https://github.com/dane-lyon/clients-linux-scribe/blob/master/ubuntu-et-variantes-integrdom.sh We use ...
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0answers
12 views

SSH tunneling with relay and dynamic IPs

I am trying to achieve a vnc connection through ssh tunnel from a computer on a private network, and to another one on another private network, using a public server as relay. It can be graphically ...
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0answers
9 views

High CPU load while IDLE

I have a little issue with CPU load on an ubuntu server 16.04. In IDLE is still: load average: 1.05, 1.06, 1.11. Processes, which are the biggest consumers of resources are md126_raid1 and ...
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0answers
14 views

Lose mount with external folder

I have a project that run in a virtual linux server, when a user upload a file, the server store it in a folder in other windows server. To connect the server I had modify the /etc/fstab file: ...
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0answers
17 views

How to upgrade drives in mdadm RAID?

Server that runs mdadm RAID1 2x 1TB HDD needs to be upgraded to 2x 4TB. After I want to configure mdadm monitor to send me e-mail if anything happens to RAID. What is the safest way to do this and ...
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0answers
40 views

Should I downgrade to (reinstall) 14.04 LTS or 15.10?

Succinctness has never been my forte so apologies in advance; I've bolded the actual question but the background may be useful. This question is a little wooly but it'd be nice to know what I should ...
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0answers
38 views

ssh_exchange_identification: read: Connection reset by peer

I really do not know much about ssh. I only know how to type some commands to get into my machine in my office when I work from home. Today I got some updates on my Ubuntu 14.04 machine, a new kernel ...
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0answers
27 views

Ubuntu 16.04 LTS: zpool destroy'ed pool got re-created after system reboot

Just created a VM of Ubuntu 16.04 LTS to experiment with ZFS. The thing I've done: # cd /home/zerox/local # touch vdev1 # truncate -s 2G vdev1 # zpool create tank /home/zerox/local/vdev1 # zfs ...
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25 views

Route traffic from eth1(local network) to eth0(external network) where ubuntu is dhcp server

I have an ubuntu server which is configured to be DHCP server to give IP address to a cisco switch through eth1. eth0(connected to the external network) ip:10.106.24.182 netmask: 255.255.255.0 ...
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0answers
98 views

How to set bootstrap-timeout when deploying landscape-dense-maas from conjure-up on xenial

I'm currently following Juju 2.0 Bug# 1576003 which will hopefully make this problem obsolete. Until then... JuJu seems to cut-out before landscape deployment completes in a MaaS environment. In ...
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0answers
37 views

SSL Certificate Issue Godaddy + DigitalOcean + Nginx

I follow digitalocean tutorial - how to install godaddy certificate with nginx. Everything worked fine expect it's not showing green color in chrome or lock in safari. I tested certificate with ...
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0answers
13 views

Samba share distributed on VPN subnet

I am trying to connect to a Samba share through a VPN I set up using OpenVPN. Both, Samba and OpenVPN are set up within a Virtual Machine runnning Ubunutu 14.04. On the client side I'm using several ...
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0answers
144 views

Ubuntu server 16.04 VNC only showing terminal and a file explorer window

I recently installed Ubuntu server 16.04 and tried to get vnc running with gnome-core running as the user environment. Initially after installation I only got the classic gray screen when logging into ...