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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1answer
60 views

Trouble understanding how to setup network Bridge on Ubuntu 14.04.2 to act as a web content filter

I am trying to build an Ubuntu server to act as a web content filter, using Squidguard and Dansguardian. There are great resources such as this: ...
1
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0answers
33 views

Ubuntu 14.04 “azureuser” exists - and I did not create it

I just logged into an Ubuntu 14.04 instance and in the home folder there is a user "azureuser" (yes, this is an Azure VM) with four items in it: .ssh (folder) .bash_logout (file) .bashrc (file) ...
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votes
2answers
53 views

Stop all websites from sending emails

I have Ubuntu Server set up on a machine. I have Virtualmin installed to manage my websites. The idea is that 2-3 of them use open source platforms like Wordpress and I didn't had time to update ...
2
votes
1answer
31 views

Zabbix file system autodiscovery does not kick in

I have the following set up Zabbix server 2.2.2 Zabbix agent 2.2.2 I have the agent running on several Ubuntu 14.04 servers which have Template Linux OS applied on them. For some reason, the file ...
1
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0answers
17 views

UFW Firewall on Ubuntu

I have installed UFW on Ubuntu 14.04. I used following commands to enable a port: sudo ufw allow 9384/tcp When I used the status command (sudo ufw status) it shows me that port is open for both IP4 ...
3
votes
5answers
66 views

Should I enable automatic security updates on a Ubuntu server? [closed]

I can't seem to find an agreed answer on this anywhere, so I figured I'd ask it myself. I have five Ubuntu servers running either 12.04 or 14.04, should I enable automatic security updates on these ...
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0answers
15 views

Windows Server IPP Index Page Formatting

I am trying to automatically add printers to linux clients using cups so unfortunately I cannot make use of GPO printer distribution in this case. I've enabled IPP printing on Windows Server 2012 (I ...
0
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0answers
25 views

ubuntu server keymap switches back to default after reboot

I have an ubuntu 15.04 vivid running on a server with a vnc. During installation, I chose a de_DE keyboard variant. However, after each reboot, the keymap is switched back to english. I can reload the ...
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2answers
104 views

EC2 Ubuntu 14.04 instances: running `apt-get update` results in “Hash Sum mismatch”

Every time I create a new AWS EC2 instance with Ubuntu 14.04 (using ami-a182b391, as found from here) and then immediately run sudo apt-get -y update, it gives me an error. Here's the OS info: $ ...
1
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1answer
17 views

How to start a tmux within bash right after reboot

I have created a script to run upon reboot of an Ubuntu instance. crontab -e Then added this to the script: @reboot /home/ubuntu/startup.sh This is how the script looks like: #!/bin/bash tmux ...
0
votes
1answer
18 views

NFS client, ZFS Server ZoL: cat to changed file ends with not found

We get in trouble since an update from our clients from Ubuntu 12.04 to Ubuntu 14.04. The behavior: On client A I change an existing file foo on a nfs share. On client B I do a cat foo. 1st time ...
1
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2answers
38 views

How to recover an Ubuntu Server which has partial permanent data loss?

I have an Ubuntu Server which root partition is on a raid 0 were one HDD had data loss / broken sectors. The data loss only impacts 1-2 % of the total data on that root partition however the server ...
3
votes
1answer
121 views

AuthorizedKeysFile line commented out but still seems to work

I'm setting up a server on Linode and following their Securing Your Server guide. They recommend setting up ssh key pair authentication. I have already uploaded my public key to server and the key ...
6
votes
2answers
468 views

Using ssh key pair authentication and disabling ssh password authentication - what happens if private key lost?

I'm configuring my first server on Linode and going through their set up tutorials. In their Securing Your Server tutorial, it recommends using ssh key pair authentication and disabling password ...
1
vote
0answers
25 views

How can I “reset” aptitude? [migrated]

I've inherited an Ubuntu 12.04 server where package management is completely messed up. Any aptitude command fails with errors like this one (for every installed package, as far as I can tell): dpkg: ...
0
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1answer
16 views

Upstart script doesn't work on boot - only manually

I followed this tutorial on setting up Flask with nginx + uwsgi. I created an upstart script at /etc/init/flask-uwsgi.conf: start on [2345] stop on [06] pre-start script mkdir -p ...
1
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0answers
28 views

Circular dependency in Ubuntu Release upgrade [migrated]

The title is the best way I could describe this error. Basically the packages kbd, console-setup, console-setup-linux, and keyboard-configuration all depend on each other. So I cannot remove, ...
1
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1answer
23 views

Ubuntu Encryption - Protect data in the case of Physical Server Access

Looking to Encrypt a system, such that if someone has physical access to the server they can not clone the hard drive or copy data off of it. I require the services to be running such that the ...
0
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0answers
15 views

How to solve nsf-common related error when install zsh in ubuntu? [migrated]

Everytime I install some kind of package, at the last phase, apt-get install could return a common-nfs related error. Why the installation can't be done without this error? detailed pastebin here ...
0
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2answers
31 views

Writing date and IP to file ubuntu

I've been trying to write the date and my local IP to a file in ubuntu with a cron job. This is what I have tried: echo date >> /home/ccpadmin/dls/ip.txt | echo ifconfig eth0 | grep 'inet ...
0
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0answers
18 views

Virtualbox vm lstp client login blank for lstp server on ubuntu 14.04 , what I'm missing here..?

I am trying to configure a lstp server ( ip of lstp server : 172.16.40.0 ) on a 64bit ubuntu 14.04 and check it network booting virtualbox vm (harddisk less vm) I configured everything according to ...
0
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1answer
42 views

LVM Free Disk Space

I have a MongoDB running on a virtual server (Ubuntu 14.04.2 LTS). The MongoDB logs say this: Fri May 8 13:08:02.270 [initandlisten] ERROR: Insufficient free space for journal files Fri May 8 ...
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0answers
20 views

Disabling HyperV integration services on Ubuntu 12.04

I'd enabled the integration services for hyper-v on Ubuntu 12.04 but started to see big problems especially with the block storage module (hv_blkvsc) I'd enabled it by adding the modules to ...
0
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1answer
76 views

CentOS vs Ubuntu Wordpress server security

I am building out a new Wordpress server for a web developer redesigning my companies website. I originally decided to go with CentOS due to stability. However it appears based on the versions of ...
0
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0answers
57 views

Windows Phone 8.1 client unable to connect to Ubuntu VPN server (L2TP with IPsec)

I have set up an L2TP + IPsec VPN server on my Ubuntu server (14.04.2 64bit) using openswan. I got it working with Android and Windows 8.1 clients, though Windows 8.1 required some tweaking. When ...
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0answers
43 views

ruby on rails 404 not found after deployment

I'm getting a 404 not found error after deploying my rails app. I'm using: ubuntu, nginx, capistrano, & unicorn. These are my configurations: nginx.conf upstream unicorn { server ...
0
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0answers
18 views

Server apparently being exploited to send emails [duplicate]

I have a dedicated server which runs a forum, a couple of wordpress installations and a prestashop ecommerce platform. My datacentre keeps cutting my connection, stating that my server is sending out ...
2
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0answers
46 views

Virtualization limits for Ubuntu Server 14.04 LTS with KVM?

Essentially I'm after something like this: Virtualization limits for Red Hat Enterprise Linux with KVM but for Ubuntu Server 14.04 LTS. I'm trying to create some KVM guests with very large 1TB+ RAM ...
1
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2answers
60 views

Port 22 is accepting connections, but not visible in netstat, unhide etc

So I have this weird issue where one of my boxes is accepting connection on the ssh port (22) even after sshd is stopped. I tried to identify the listening process by the typical means sudo netstat ...
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votes
2answers
29 views

iptables unable to open 80 && 8000 port on my ubuntu server

I am unable to open 8080 port on my server though iptables settings seem correct Here is the result of iptables-save iptables-save # Generated by iptables-save v1.4.21 on Thu May 7 21:31:19 2015 ...
0
votes
1answer
20 views

mhddfs Gives Permission denied Error When Writing File to It's Mounted Volume

Running mhddfs 0.1.38 on Ubuntu-12.04 and have two NFS volumes exported from two different servers and mounted to this box. I can successfully create the mhddfs volume, I can read and list from it, ...
0
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1answer
73 views

“Unable to stat /usr/lib/jvm/java-7-oracle/bin/java” when trying to run Tomcat7 with Java8

I'm trying to upgrade my servers to Java8 from Java7 so that they will run my webapps under Java8. On one of my machines I'm getting the following error and I'm not sure what is still referring to ...
1
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0answers
27 views

CUPS ignoring lp -o options when printing to Ricoh 4000 with Fiery E-5100

I'm having difficulties controlling which paper type, size and tray when printing from the command line using either lp or lpr. The commands appear to just ignore the -o options altogether and print ...
0
votes
1answer
38 views

Steps for upgrading ubuntu production cloud server

I have a site running on a cloud server with Ubuntu 13.04. I want to upgrade to 14.04 as seamlessly as possible. I found this answer but I wanted to flesh it out so I can be more confident. My plan ...
1
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2answers
36 views

OSSEC disk space usage

A few days ago I noticed that the disk of my Ubuntu server was almost full. I dug a bit and found out that the disk space was used by OSSEC, in the /var/ossec/queue/diff folder. I wanted to try ...
0
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0answers
7 views

VMWare Tools: Share and Access Host (Windows) Folders [migrated]

Probably the best environment for web applications development I have found is by using a virtual machine(Linux Ubuntu) within my host OS(Windows). This way, I can take benefit of Windows based ...
0
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0answers
20 views

Ubuntu 14.04 virtual servers lose network connectivity after inactivity

I'm trying to set up an MDM environment on a few virtual Ubuntu machines, 14.04 LTS running on VMware ESXI 5.5. They're currently very vanilla -- 14.04 mini CLI installs, 20gb storage with 2gb ram. ...
0
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0answers
42 views

Error installing Python related packages for Ansible on an AWS Ubuntu server

I am trying to install the Ansible control server on Ubuntu 14.x (an AWS instance). When trying to install the dependencies, I saw an error. I'm not sure what I need to do. Is this an ignorable ...
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0answers
29 views

Why same docker container has different file system on different environment?

I have several environments - one uses Proxmox (with Ubuntu 14.04 VMs) and another one uses OpenStack (with Ubuntu 14.04 and CentOS 7 VMs). There is a docker image that is used on all these ...
4
votes
3answers
99 views

Replicating a linux web server

I'm planning on replicating a web server for high availability purposes. The server is running as a Ubuntu 15.04 virtual machine in Hyper-V and has MariaDB 10.0, Apache 2.4 and PHP-FPM 5.6 installed. ...
0
votes
0answers
29 views

Can't pass Fail2ban banned IP's to CloudFlare in Nginx?

I have Ubuntu 14.04, Nginx 1.6.2, MySQL 10.0.17-MariaDB, PHP 5.5.24 VPS. It running two WordPress sites. I use fail2ban with CSF. Fail2ban I use ban action as route, because iptables-multiport and ...
0
votes
1answer
28 views

Check if a constant file request is flooding the server

I'm new to this sort of thing so forgive me if I ask anything stupid. I am using moodle (open source LMS), it has a feature where you can upload a scorm package which requires a reliable internet ...
1
vote
2answers
43 views

swapon failed: Device or resource busy on mounted disk

I want to make a swap on mounted external EBS, /workspace And I got Device or resource busy swapon: /workspace/swap.1: swapon failed: Device or resource busy sudo /bin/dd if=/dev/zero ...
0
votes
0answers
23 views

SSL Working on 8888 but not 443

I have Apache set up to server HTTPS traffic. If all I change in the 000-default.conf is <VirtualHost *:443> to <VirtualHost *:8888>, I am able to hit the page externally on port 8888. ...
0
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1answer
18 views

Software to record service level [closed]

I provide a cloud service (SaaS) on an Ubuntu machine and will be faced with service level agreements (SLAs) soon. I.e., we'll have to see what service level we can provide (probably on daily or ...
0
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0answers
13 views

Server - run programs under specific user with restrictions to write only into one directory [closed]

i'm a web developer and i need to run some third-party programs on my server. Since these programs are third-party and i'm not always 100% sure of their reliability, i would run these programs with ...
5
votes
4answers
983 views

Effectively handling 2+ million files

I have a file based DB that has about 2M files stored in 3 levels of subdirectories. 2/2/6253 2/2/6252 ... File a vary from 30 bytes to 60 KB. Whole DB is Read Only. DB is about 125 Gigabytes big. ...
0
votes
0answers
8 views

How to check that Xdebug remote debugging is set up correctly [migrated]

I have searched the internet for a while now, but haven't found a possibility how to check if Xdebug is working correctly. I have installed Xdebug on Ubuntu (like instructed on the xdebug homepage). I ...
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0answers
9 views

Cobbler Ubuntu 12.04 netcfg failure

I am using Cobbler to PXE boot cluster nodes and install Ubuntu 12.04. I have made Ubuntu 14.04 work with Cobbler and the cluster but Ubuntu 12.04 is showing weird errors at the start of the OS ...
0
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1answer
60 views

Is there anyway to do ssh on a VM with a local IP address?

Scenario :I am using KVM as a hypervisor and Ubuntu as guest and host OS. There are many VMs on a PM and I am assigning IP addresses to those VMs using NAT. To create VMs I am using a baseimage. So ...