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
20 views

Potential of a server

I was wondering, if I use an old home machine as a server - how many connections will I be actually able to support. I was able to calculate the connection's capabilities myself as it is quite simple. ...
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votes
2answers
31 views

How do I block SSH connections except those originating from within a /29 block of IP's or LAN? (CentOS 7 and Ubuntu 12) [on hold]

I have already disabled root login via SSH, turned off password authentication, and implemented SSH keys. I wanna go one step further and only allow SSH connections to originate from within our ...
0
votes
0answers
3 views

MAC changes back after 30 min or earlier [migrated]

I have lubuntu 14.04 system and need to change MAC for internet conncetion to work. I've done this: ifconfig eth0 down ifconfig eth0 hw ether MAC_ADRESS ifconfig eth0 up But repeatedly after 30 ...
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votes
0answers
4 views

Ubuntu hang up before login screen [migrated]

On my Ubuntu 14.04 x64/Win 8 dual boot system (traditional via grub), Ubuntu won't run any more... The boot process seems correct, but when the login screen is about to display (Ubuntu logo shown with ...
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votes
0answers
17 views

HTTP Tunnel like Webmin's [on hold]

Is there a program like Webmin's HTTP tunnel with a web interface? The problem with Webmin's is that JavaScript and Cookies don't work properly. Any alternatives?
0
votes
1answer
28 views

Apache and php5 fail on ubuntu server

I update a PHP 5.5.28-1+deb.sury.org~precise+1 (cli) and have apache Apache/2.2.22 but when run a restart apache2 apache2: Syntax error on line 216 of /etc/apache2/apache2.conf: Syntax error on ...
1
vote
1answer
22 views

ssh from Server to Client through PPTP tunnel

I was able to set up a small PPTP VPN with a Server and two clients. All machines run Ubuntu 14.04. The connection works great and is reliable. I can ping all machines from everywhere. Also HTTP ...
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votes
0answers
21 views

Choose IP on server with ubuntu installed [on hold]

I have a server which has ubuntu installed on it. The server has one IPv4 address and 99 IPv6 addresses. By default the IPv4 address is used. Link encap:Ethernet HWaddr 00:1c:42:e3:cb:33 inet ...
0
votes
0answers
120 views

(Zimbra)OpenLDAP SSHA512

So, our employees use the Zimbra OpenLDAP, however, since this doesnt include PosixAccount we cant automatically link it to our Synology. So my boss wanted me to create an OpenLDAP Database, and ...
0
votes
1answer
25 views

Netstat showing multiple connections for on ssh login

I connect to my server via ssh. I am the only person who has access to connect to the server. After connecting via ssh, I run the following command: sudo netstat -tupn The output includes the ...
14
votes
4answers
2k views

Is there a downside to installing VNC?

We have an Intel NUC in my university's language department that will soon host a web application used by faculty and students in the department. The NUC runs Ubuntu (14.10). I'm comfortable with the ...
-1
votes
1answer
28 views

How to open rails on port 80 in ubuntu [on hold]

I have rails installed on a user on my server but not on the root user. I have full access to the root user however when I attempt to run my rails server on port 80 on the user it specifies I need ...
1
vote
1answer
16 views

Installing postgres 9.4 on ubuntu with a non-default database directory

I am trying to install and set up postgres 9.4 on ubuntu 14.04. What is the best way to install postgres whilst ensuring all created tables and databases (and anything else that could potentially ...
-1
votes
0answers
22 views

Error deployment of project via deploy.sh script [on hold]

I need help. I have script for deployment my project on Ruby. #!/bin/sh if [ $# -eq 0 ]; then echo "Usage:" echo " ./deploy.sh some_stage_name" else rvm use `cat .ruby-version`@`if [ ...
2
votes
1answer
51 views

Connections Timed Out - Tomcat

I'm having a problem with Tomcat: On a clean install, connecting to [ip-address]:8080 times out. I have seen many similar questions and tried basically everything there, with no success. But here is ...
-1
votes
0answers
7 views

Port forwarding within network using iptables [on hold]

I'm trying to redirect external traffic internally within my network? This is my set up: External IP- Router - Ubuntu Server (Open to all traffic -192.168.1.2) - Raspberry Pi ...
1
vote
0answers
34 views

Ping not reaching in OpenVpn clients to subnet and vice versa

I have a vpn server which is connected to vpn client having ip 10.30.0.x now. I want it to able to ping another private client connected to vpn server. Please note that other private client is private ...
1
vote
2answers
23 views

Transfer whole Linux system and grub settings to 2nd drive?

I have system partition on /dev/xvda1 (slow disk) and just added SSD attached as /dev/xvdb. How to fully transfer Linux system to /dev/xvdb and retire /dev/xvda1 without using the console? Transfer ...
1
vote
0answers
18 views

rsync crashes machine while performing sync on glusterfs mounted share

I am running ubuntu 14.04 as guest inside virtualbox 5.0.3 on OS X. While performing rsync on a glusterfs (3.7.x) mounted share with over 100.000 files, the entire machine crashes. There is one ...
0
votes
2answers
21 views

Failed to start stunnel4 on Ubuntu 15.04

I get the following error starting stunnel4 service on Ubuntu 15.04: root@scw-d91ec7:~# service stunnel4 start Job for stunnel4.service failed. See "systemctl status stunnel4.service" and "journalctl ...
0
votes
1answer
17 views

Mount NFS volume on Ubuntu Linux server from Mac OS X Yosemite client

I have an Ubuntu 14.04 LTS server (a local VM in my case). How do I mount a directory on the Linux server from a Mac OS X Yosemite client, using NFS?
0
votes
0answers
8 views

Error starting a VirtualBox instance inside an Ubuntu VirtualBox instance [migrated]

I am trying a Microservices demo that uses Vagrant to start up a VM and deploys software to the started machine. Because the demo is set up for Linux and I am using Windows (8.1 Pro), I am running ...
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votes
0answers
18 views

How to collect ubuntu system's versions via push model on the local network? [on hold]

We use different Ubuntu versions and sometimes several OSes on the workstations. Also we can use Windows installed along side Ubuntu. Sometimes machines cannot be queried for an installed system ...
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votes
2answers
48 views

Create 2 DNS names for 2 domains on one static IP - Ubuntu

I have VPS Ubuntu 15.04 and there I have configured DNS for one of my external domains. This is sample of configuration at '/etc/bind/named.conf.local': zone "test.com" { type master; ...
1
vote
0answers
38 views

Certificate error while using sudo apt-get update

I tried asking this on askubuntu but haven't found an answer. I installed Ubuntu Server 32-bit 14.04 on an old machine, and I tried to run sudo apt-get update but it's followed by this error message: ...
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votes
1answer
12 views

zimbraAdmin monitor show server from previous installation

If I open zimbraAdmin and go to configure - servers only the current server is shown. But if I go to monitor - server status there is a server from a previous zimbra installation, and all services ...
-4
votes
1answer
33 views

how can i install SSH, FTP, HTTP on my ubuntu server to access from my windows 10 [closed]

i want to install and configure SSH on my Ubuntu server and access this server from my windows 10 and also tell me how can i live this server with the world.
0
votes
1answer
40 views

IBM - Kernel problems [on hold]

I bought an IBM x3850 and wanted to install Ubuntu on it. Then it said, that it can not find hard drives... After some time i figured out that I need to type in the kernel parameter iommu=soft. The ...
0
votes
1answer
17 views

Puppet: Error: Could not set 'file' on ensure: getaddrinfo: Name or service not known on Ubuntu 14.04 x64

I'm trying to use Puppet to deploy a server on Ubuntu 14.04 x64. I can ping the puppet server fine, and the server is set correctly in puppet.conf. Puppet can connect to the master, send its key, I ...
0
votes
1answer
32 views

How to configure Array on DL360 GEN 8 Server Running Ubuntu

Hi all I have an DL360 GEN 8 Machine. And I need to install ubuntu server on it. However. Accourding to HP, THE Dyanamic Smart Array System is not support. Since I would love to make use of array.. ...
1
vote
3answers
69 views

SSH and security guidelines

I'm trying to set-up an ubuntu server (14.04 LTS) following some security guidelines. One of these guidelines suggests to disable root user and create a new user that works as an administrator using ...
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votes
0answers
13 views

How to bridge VIP interface on Ubuntu

I am running Ubuntu 14.04 on OSX guest through VB 5.0 Rooter Gateway is 192.168.0.1 Vbox0 is 192.168.56.1 Ubuntu has now 2 interfaces configured: # static iface eth0 inet static address ...
0
votes
1answer
27 views

Get all files/directories created before a certain date?

We have a samba share on an Ubuntu box that an office full of macs use. Something has happened recently and various folders now seem to have a created date of 1984 and are greyed out/inaccessible for ...
0
votes
1answer
14 views

How can I add rule to iptables on ubuntu to enable redis on local ip but not external

I've followed the various scripts to set up 2 linode machines. Both have an external and local Ip. On one I have installed redis, and I want to connect to this machine via the local ip. Which rules ...
0
votes
0answers
17 views

Iptables config for BubbleUpnpServer

SUDDENLY my bubbleupnpserver is not able to connect on the port 58050 for http and 58051 for https. Yesterday was working, no changes on the server, puff, today no working anymore. Maybe it's ...
0
votes
1answer
20 views

Server abandons set static ip and returns to dhcp given address

I have a few virtualized (ubuntu 14.04 LTS) servers under KVM that I'm trying to move to an ip block other than the one reserved for servers under dhcp (the 10.10.2.0/24 block). I change the ip and ...
0
votes
1answer
19 views

Ubuntu production server access configuration recovery options

I have a cloud based server. I followed this guide to configure its security : http://www.rubytreesoftware.com/resources/securely-setup-ubuntu-1404-server The configuration of SSH is as follows: # ...
0
votes
1answer
28 views

Ubuntu 12.04 high io by root process

Ubuntu server 12.04. Installed on hdd disk. There is postgresql database on server runing on other ssd disk. The problem is in high io by some root process on hdd disk. iotop shows 2 processes with ...
0
votes
2answers
40 views

How to add second ZooKeeper to same machine?

I am running 2 dedicated servers on which I plan to install Solrcloud. I have installed ZooKeeper using apt-get install zookeeperd and ZooKeeper is running on both systems. From solr docs I learned ...
0
votes
1answer
22 views

Block redirected port from external access using ufw

I have an application that uses ftp. I redirected the 21 port to 2221. But I see that 2221 is accessible from external even though it is not specified in ufw rules. So I want to block 2221 from ...
0
votes
0answers
18 views

How can I enable two interfaces on my machine

How can I enable two interfaces on my machine I tried to enable eth1 via this command sudo ifconfig eth1 133.130.60.36 netmask 255.255.254.0 gateway 133.130.60.1 up; sudo route add default gw ...
1
vote
1answer
13 views

How to sync clock and UIDs across different nodes of a cluster with Ubuntu?

I am new to cluster computing and Ubuntu. We have a computing cluster with 4 nodes (10 cores per node) with Ubuntu installed. The cluster is meant for scientific computing. To install a load ...
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votes
0answers
27 views

phpMyAdmin uses port 80 on CloudFlare Flexible SSL

I currently have 3 websites on a dedicated server (running on one IP address). For one of the sites, SSL is active on the server and phpMyAdmin runs fine. After you log in you are redirected to the ...
-1
votes
0answers
21 views

Some packages have unmet dependencies: libtinfo5 [closed]

I try to install readline lib for my Ubuntu 13.10 server, but get this issue: apt-get install libreadline6-dev Reading package lists... Done Building dependency tree Reading state ...
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votes
1answer
37 views

Port 22 Connection Refused After Ubuntu IPTables Tutorial [on hold]

I followed this tutorial from ubuntu on iptables. My commands are as follows: sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT sudo iptables -A ...
2
votes
1answer
30 views

Integrating postfix with LDAP to eMail Users with Access to A Specific Host

I have a working openLDAP v3 installation under Ubuntu 14.04 (slapd 2.4.31-1) with phpldapadmin, sudo-ldap and other packages installed. I'm trying to integrate postfix with LDAP so I can send emails ...
0
votes
1answer
21 views

trying to get 2 websites on one server with apache

Ok I've been looking around for a while and I'm pretty sure I have the virtualhost file configured properly. <VirtualHost *:80> ServerName example.com Redirect permanent http://www.example.com/ ...
0
votes
0answers
18 views

Loading iptables rules from /etc/init.d/

I decided to load my iptables rules from /etc/init.d/ on my Ubuntu 15 server. Is this good practice? Here is the script I have: #!/bin/sh iptables-restore < /etc/iptables.rules exit 0 By the ...
1
vote
0answers
28 views

VM apt-get install - network is unreachable [migrated]

I have a Vagrant backed Ubuntu VM which I'm trying to do some performance testing on. In order to do so I'm trying to install gdb When I run apt-get install I see the following: ...
0
votes
1answer
24 views

Host name conflict with avahi daemon on Ubuntu 14.04 LTS

I have two VMs running Ubunut 14.04 on Virtualbox. They are connected via VIP. Syslog on node1 shows recuring error messages from Avahi and I can't find the problem nor the solution. tail ...