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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How to safeguard against power outage for a server backed up by virtualbox

I installed virtualbox in a windows machine. Then I created a ubuntu guest virtual machine which runs an Apache server. A colleague of mine pulled out the power from the PC today to insert a RAM. The ...
0
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0answers
21 views

Interpreting uptime and top average load numbers

I am running a LAMP stack on an 8 core VPS (on Digital Ocean). I am seeing extremely high load average numbers (in the 150 range - see below), while the server does not seem to be overloaded at all ...
0
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0answers
4 views

Why is aufs merging some directories but not others?

I have 3 drives mounted via the following fstab entry: none /var/srv/files aufs br:/mnt/media1/files/:/mnt/media2/files/:/mnt/media3/files/ 0 0 I have an aaa ...
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votes
0answers
14 views

HAProxy cannot bind socket for Unix listener

I need to make my Linux [Ubuntu 14.04] work as load balancer using HAProxy. For that I followed the steps given on this link. But I'm getting this error: root@tejas-desktop:/usr/sbin# sudo service ...
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votes
0answers
9 views

How to setup q2a website on EC2 [on hold]

I am trying to setup question2answer website on Amazon AWS EC2 servers. I am not exactly sure how to setup the website and get it running on the EC2 server. Especially how to deal with the IP ...
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votes
0answers
40 views

connection to Server via SSH [duplicate]

When I try to connect to my Ubuntu server via SSH (with Putty) I get the password prompt. After entering the password I get a long error message (pasted below) and then the connection is closed. ...
0
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0answers
28 views

How To Access SFTP on Ubuntu [migrated]

I inherited a linux server and I am attempting to access SFTP for a specific user. I can access a shell with no issues using an admin account "admin" and I can also access the filesystem with ...
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votes
1answer
15 views

t1lib-dev on Ubuntu 14.10

I used to be able to install t1lib with apt-get install t1lib-dev. Ubuntu websites says they still have it but I just can't install it. Even when I compile PHP I get this: configure: error: Your ...
0
votes
1answer
22 views

NTP not sync the time continuously, Have to restart the service of NTP then it SYNC in Ubuntu

I am facing one problem. NTP server not sync the time automatically. If I change the the time of system then NTP server not able to correct it. After reboot the service of NTP it sync the time ...
1
vote
1answer
295 views

ssd performance against hdd performance

I have two server, one with a SSD, one with a HDD. I've been running hdparm to see the differences, but the results for Timing cached reads and Timing are quite equal/HDD is faster: SSD: Timing ...
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0answers
4 views

Cannot SSH to my Server, The connection Hangs [migrated]

Hello i have setup a home server which I am trying to access remotly. I did this a while back and untill recently I moved homes and ISP. I have port forwarded with my new ISP to be able to access the ...
1
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0answers
6 views

x11vnc -gone: Cannot lock screen using gnome screensaver

I'm running Ubuntu 14.04LTS Server and installed a 'light weight' gnome desktop using sudo apt-get install xorg gnome-core gnome-system-tools gnome-app-install I have also installed x11vnc sudo ...
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0answers
41 views

nginx hhvm bad gateway

I do have an issue with Nginx 1.6.2(compiled) and HHVM 3.4.2. Everything is installed 'fine' when I run hhvm info.php it returns 'HipHop'. But when I visit the website I get an 502 bad gateway, so ...
2
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2answers
80 views

Allow user modify nice without giving root permisions

Is there any way to allow user modify process niceness without giving root permisions? OS: Ubuntu 14.04.1 LTS
3
votes
1answer
53 views

Postfix SMTP relay server

I use gmail to receive e-mails both from my gmail address and my own domain, but gmail no longer allows you to send e-mails from your own domain name unless you provide your own SMTP server to send ...
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0answers
17 views

OpenLDAP data purged/whipped on Ubuntu server upgrade 12.04 to 14.04 LTS

I upgraded my Ubuntu server from 12.04 to 14.04 using standard do-release-upgrade. After upgrade I found that my OpenLDAP directory data is purged. This is an unexpected outcome of an upgrade. I ...
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votes
1answer
31 views

cannot access localhost with nagios and nginx

I have followed this link to install nagios, I already have nginx up and running. The problem is I keep getting user name and password to authenticate. When I remove the auth_basic_user_file ...
1
vote
1answer
48 views

How do I block incoming traffic from Amazon AWS IPs?

I'd like to block ALL incoming traffic from Amazon AWS IPs. They publish a list of their IP addresses in json format here: http://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html I have a ...
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0answers
13 views

Services Broken after installing EHCP [closed]

I've installed today with curiosity EHCP in my server, but after I've seen thank will change preferences of Apache, ftp, mysql and others I decided to remove it, but it has already broken my ...
0
votes
0answers
13 views

jinfo for java-7-openjdk-amd64

I am trying to check my memory settings currently in use with tomcat via jinfo on Ubuntu. However when running jinfo -flags <PID> against the tomcat PID, I get the following error: $ sudo ...
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votes
0answers
31 views

Nginx domains redirect to main [closed]

The main working domain is example.com that serves a django application How would direct example.org, example.net, example.info to the working example.com The best approach that does not break down ...
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votes
1answer
22 views

How to Sign in a domain of Ubuntu Server from Windows XP?

I've got a a problem, I've got an Ubuntu server 13.10 with samba and a domain, in the network I use 2 Windows XP as clients, which I have added to the domain. When I want to sign in the domain as root ...
2
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0answers
26 views

UDP Traffic from outside to docker container is dropped after container restart

following situation: i have a hardware box with Ubuntu 14.04LTS as host for docker 1.4 I'm running an ELK stack in several containers. Curenntly the logstash container is exposing only port 514 to ...
0
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0answers
22 views

creating a custom service on ubuntu [migrated]

I am setting up an ap called scumblr (https://github.com/Netflix/Scumblr/wiki) The final step calls for initiating the server using the following 3 commands: redis-server & ...
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votes
0answers
15 views

reboot the ubuntu, core pattern reset

I am in the ubuntu execute the command "sudo sysctl -p" to change the kernel.core_pattern, but when I reboot the system, the change will be reset, I have the execute the command "sudo sysctl -p" ...
0
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0answers
20 views

Deploying node.js application on Ubuntu VPS

I created an real time android application backed by a node.js application. I use express, socket.io, mongodb and ubuntu for my backend. But my problem is on how I can possibly run it in production or ...
0
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0answers
20 views

Dell PE 830 with updated BIOS - 2 TB HDD

I was wondering if anyone had overcome the small disk limit on this server? Mine does not have a RAID controller and I wanted to install (2) 2 TB drives in it for storage and use the Ubuntu 14.04 ...
0
votes
0answers
4 views

Remote boot ubuntu desktop machine [migrated]

I've setup ubuntu 14.04 on my iMac at home (as well as SSH & portforwarding). I can connect via SSH when the machine is on, connected, and not suspended. Similar to many hosting providers (i.e. ...
1
vote
1answer
22 views

Lots of apache2 processes causing high server load

I noticed that my site was down today and when I ssh'd into my box and ran top, I noticed that my server load was super high. I quickly shut off apache and waited until the load dropped, but as soon ...
0
votes
0answers
16 views

Vestacp custome nameservers [closed]

I am using vesta control panel, as per their documentation, i have created custom nameservers, here what i did... I have registered both nameservers using 2 different ips at my domain registrar. I ...
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votes
0answers
23 views

Create a 2 ISP failover config on Ubuntu or FreeBSD

I have 1 Ubuntu Box and 2 ISP providers. Also I have a 1 LAN: # WAN1 (100Mbps): ip: 5.5.5.5 netmask: 255.255.255.252 gateway: 5.5.5.1 #WAN2 (20Mbps): ip: 4.4.4.4 netmask: 255.255.255.0 gateway: ...
1
vote
0answers
35 views

FreeRadius Error reading /etc/freeradius/huntgroups

I've configured freeradius to use sql, everything was working fine, I was doing some tests with the users, and suddenly I cannot start the debugger because of this error : rlm_preprocess: Error ...
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votes
0answers
19 views

Can NAT be used for a br-ex OpenVSwitch interface (VirtualBox)?

Can "NAT" be used for an interface (eth1) which has a br-ex attached to it using OpenVSwitch or does it have to be "Bridged Adapter"? (VirtualBox) /etc/network/interfaces on Ubuntu 14.04 auto eth1 ...
0
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0answers
21 views

Equivalent to TYPE=“OVSPort” DEVICETYPE=“ovs” OVS_BRIDGE=br-ex in Ubuntu 14.04?

Is there an equivalent to TYPE="OVSPort" DEVICETYPE="ovs" OVS_BRIDGE=br-ex in Ubuntu 14.04? The system is OpenStack Icehouse with 3 nodes (controller, network, compute1) each on a VirtualBox Ubuntu ...
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votes
1answer
23 views

Setting apache2 as default web server on ubuntu

So on my ubuntu server I have both apache2 and nginx installed for testing purposes. However, currently nginx is set as default (nginx is the one that starts up when the server is restarted), but I ...
0
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0answers
10 views

Difference between ps_mem.py & free -m . Ubuntu server kills processes

Previously, I had a 4GB RAM server with Linode. Several times, I did "free -m" command to check available memory. I asked question here as well, but realized its more appropriate here. Most of the ...
0
votes
1answer
19 views

30GB EBS Backed Ubuntu server showing 7.74GB in landscape-sysinfo

I created a ec2 instance with 30GB of EBS volumne. However when i SSH into my ec2 instance, the landscape-sysinfo says usage of 9.7% of 7.74GB. Wasn't it suppose to be 30GB instead of 7.74GB System ...
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votes
2answers
57 views

nginx force ssl exception

I am using Ubuntu 14.04 with nginx installed and SSL installed on main domain, which works fine. I have even parked 5-6 other domains with main domain. If I go to any of those domains, I get an SSL ...
0
votes
1answer
43 views

Unable to run salt.highstate

I'm working on configuring a group of 40 servers to be managed by SaltStack. I'm testing with just one minion at the moment, which I have successfully added to the master. For simplicity, I'm using ...
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votes
0answers
13 views

Run qemu in Ubuntu Server(inside VirtualBox) error [duplicate]

I'm running qemu for virtualization in my ubuntu server which is vm inside virtualbox. It reports such an error: Could not access KVM kernel module: No such file or directory. I did some digging ...
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votes
2answers
49 views

How do i install another version of PhP?

I would like to have installed WHMCS on my dedicated server. (I already have installed apache2) How do I install PhP 5.4 as WHMCS not support PhP 5.5? WHMCS System requirements: ...
3
votes
1answer
95 views

redirect rewritten url using haproxy

Using haproxy version 1.4.24 on Ubuntu 14.04 I would like to use haproxy to rewrite and redirect urls which are no longer valid to their new equivalent. I am already using haproxy as the reverse ...
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votes
0answers
10 views

FailOver Ip configuration

i have got a new Ip from my provider un-configured one i have tried everything to configure it but nothing didn't work, when i ping it from the server it is working but when i try to ping it from my ...
1
vote
2answers
39 views

Disable all outbound network

I cannot seem to find any information on how to completely disable all networking. Essentially I want to flip the switch for any outbound or inbound networking. Like the wifi button on my computer, ...
0
votes
1answer
34 views

Router accessible from Windows but not from Ubuntu on the same machine

I have a Linksys E900. I can access the internet and its admin page from Windows but not even its admin page from Ubuntu (on the same dual boot machine). Like there is no communication between the ...
1
vote
0answers
32 views

Unable to change ulimit setting [migrated]

I edited /etc/security/limits.conf to have root hard nofile 20000 root soft nofile 10000 And added session required pam_limits.so to /etc/pam.d/common-session and ...
1
vote
0answers
28 views

added new drives to raid 5 with wrong format then removed them and broke raid 5

thanks in advance for any help. In summary: I added 3 new disks to raid 5 array. Then, thinking they were not added, I removed them. Now the array doesnt work. What can I do to get back the ...
1
vote
2answers
44 views

Can't connect to MySQL from another server

I have two servers on the same subnet. 192.168.100.1 (mysql) 192.168.100.2 (php) MySQL seems to be running fine on it's box but I can't seem to connect to it. These are both ubuntu boxes and ...
1
vote
0answers
17 views

Nginx error on installing vestacp

I am trying to install vestacp on fresh dedicated server running ubuntu14.04 with nginx installed, however i have tried to remove this using... sudo apt-get remove nginx sudo apt-get purge nginx ...
2
votes
1answer
23 views

cant sftp into ubuntu server

Hey guys I've set up an openssh server, but I still cant sftp or ftp into my ubuntu server. I am always getting login failed errors for every attempt i try to make. I am running ubuntu 14.10 I ...