Server :: Startx When The Xclient And Xserver Are On Separate Machines

Jan 13, 2010

i have managed to be starting applications remotely (on the X client). then, the Xserver can be a linuxOS, or a winXP application (Xwin32, Hummingbird)... so i can get the applications (xlogo, konqueror, or dolphin) from the X client showing on my X server (at my terminal that is). no problem. Problem is with startx. since my Xclient is a file server, i don't need for it to be running xdm... but i would like to be ssh'ing to the machine and startx when (rarely) needed.

what happens currently is that i ssh to the file server, i open up the Xserver locally (or the terminal), and i verify that xlogo will start on my X server instead of on the Xserver of the fileserver. then i try to 'startx' but i get nothing on my screen, while the window manager is loading in the Xserver of the file server itself... how can i change that??? i have verified that $DISPLAY variable is pointing to my Xserver (how else would xlogo work?)..

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General :: Startx Script Commandline To Start VirtualBox VM On Separate X Server

Aug 28, 2011

I am trying to start a VirtualBox VM on a separate X screen (in fullscreen) so I can switch between Linux and Windows XP by doing Ctrl + Alt + F<.

I am basically trying to do something like this:

startx "VBoxManage startvm XP" -- :4
startx "VBoxManage startvm "XP"" -- :4 (is this correct for quotes within quotes??)

I get a "bad command line option "VBoxManage" back from the startx script so obviously I am not understanding the rules for how to write "shell magic".

How can I do this correctly, or perhaps there is a better way of achieving a VirtualBox VM on a separate X screen?

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Ubuntu Servers :: Separate Virtual Machines For Apache, Mysql, File Server?

Jul 11, 2011

I'm working on a side project where I would like to install three ubuntu server systems,each with only one task.So server0 would be the apache server, server1 would be the database and server2 would be the file server.which key terms I should be researching?

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General :: Running SSH On Two Separate Machines?

Mar 1, 2011

I have the following network setup.

* A static IP from my ISP
* A router/modem in my home
* Two machines: MachineA and MachineB connected to the router

Currently, the router is setup so that ports 80, 21, and 22 all forward to ports 80, 21, and 22 on Machine A.

However, I would like to be able to SSH into Machine B as well. What is the best way to accomplish this? I figured I would setup Machine B's SSH server to listed on a random port like 2995. So then I would configure my router so that incoming requests from port 2995 are forwarded to port 2995 on Machine B.

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Server :: Cannot Startx By User Account Oracle?

Feb 3, 2010

Startx by non-root user account in red hat linux kernel 2.6. How can I use the command "startx" by other user account such as "oracle"? I cannot startx by user account oracle?

Code:
[oracle@localhost ~]$ startx

Fatal server error:
PAM authentication failed, cannot start X server.
Perhaps you do not have console ownership?

Please consult the The X.Org Foundation support at [URL] for help.
[1]+ Stopped startx
[oracle@localhost ~]$

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Ubuntu :: Login And Xserver - Error "Server Is Already Active For Display 0 If This Server Is No Longer Running"

Jul 14, 2010

I've just upgraded (finally) to 10.04 desktop, and when I boot, I get a login screen, which is quite usual, but once I log in, the machine drops to terminal, instead of the usual GUI. I've tried running startx, but I get this error message. Fatal server error: Server is already active for display 0 If this server is no longer running, remove /tmp/.X0-lock and start again.

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Server :: Config Web Server To Be Access By Other Machines With Browser?

Jul 19, 2010

I installed a server called Oracle VM Manager, which is actually a web based application to manage Oracle VM server.After successfully installed everything, it suppose to be access by browser using But strange thing is, I can see web pages from the server itself with but any other machines to access it with hostname or ip address all failed.

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Server :: Separate Incoming And Outgoing Mail Server?

May 4, 2011

I want to have separate incoming and outgoing mail servers with smtp authentication.

Server1 will act as incoming mail server
Server2 will act as outgoing mail server

How can i authenticate domains users of Server1 from Server2 for smtp authentication.

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General :: Installed Red Hat Professional 8.0 In VMWare - Type - Startx - On RUN - Fatal Server Error

Jun 24, 2011

I just installed Red Hat Linux Professional 8.0 in my VMWare, but I do not know how to start X Windows. I have tried to type "startx" on "RUN", but I get error message: Fatal Server error Server already active for display 0. If this server is no longer running, remove tmp/.X0-lock and start again.

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Ubuntu :: Setup Xserver With Karmic - Run The Installer In Server WITHOUT Installing Gdm Or A Desktop Environment?

Mar 24, 2010

I have a server set up with Ubuntu Karmic. I am making it a printer server, and my printer is compatible with Ubuntu. (I tested it on my laptop, also using ubuntu) My problem is, the driver installer is graphical and my server is not. Is there a way I can just run the installer in server WITHOUT installing gdm or a desktop environment? So far, everyone I've read says to have xserver,xorg,fluxbox(or other gui), etc. I just want to run the installer through SSH, and I know about the -X tag.

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Server :: External Machines Can See SOME Subdomains But Not All?

Sep 16, 2010

I have a DNS server on my LAN at 192.168.140.25. Going by the example in the O'Reilly DNS and BIND book I bought, I set up the domain movie.edu and [URL]. To my great surprise and delight, I can access toystory.movie.edu in a browser from another PC on the LAN (as long as I add 192.168.140.25 to the DNS servers). Encouraged by this victory, I decided to try to set up another subdomain at [URL].

This kind of worked but not completely. Interestingly, I can get to both [URL] and [URL] on my server, but on my PC, I can only get to [URL] not [URL]. Here is my db.movie.edu:

Code:

$TTL 3h
movie.edu. IN SOA toystory.movie.edu. al.movie.edu. (
1 ; Serial
3h ; Refresh after 3 hours

[code]....

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Server :: Password-less SSH Only Works On 1 Of 2 Machines?

Apr 16, 2010

I have setup password-less SSH on 2 machines the same way, but it only works on one.

3 machines
2 remotes :-
A : 192.168.109.15

[code]....

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Ubuntu :: Networking / Setup A Domain And Directory Server Similar In Function To Windows Server W/ AD And Join Other Machines To The Domain

Aug 21, 2009

I've got a home server running Ubuntu Server 9.04 and several machines running Ubuntu Desktop (9.04 and 8.04) and Windows (XP, Vista and 7). Now what I want to do is to create a domain and directory server similar in function to Windows Server w/ AD and join my other machines to the domain, but am not sure where to start. I already have file shares with Samba but now I want to setup a domain.

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OpenSUSE Network :: Set Up 3 Virtual Machines On A Server

Dec 10, 2010

I only have one IP adress to access the server. But the server will host 3 web sites and I want them to be hosted in a vm. So, I want to setup 3 virtual machines to do it and use apache reverse proxy and vhosts to redirect the domain requested to the right vm. Now. I understand the concept, but I am not an expert to set that up....

I have an openSUSE 11.3 server. So, I have to set a virtual machine server, is that right? I have been told that I cannot do it with VMware server in oS 11.3. Can I use virtualbox for this? I only have to install virtual box? Is there a special version to install? Once the virtual machine server is install, is it trivial to create 3 vm? So, I want to know wich are the steps I have to take to set that up.

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Oct 27, 2010

suddenly ,I get a project to shutdown all xp's by a Linux server(RHEL5) using a single command.by net command i did that.but in this case i have to specify all the ip addresses manually .Is there any way that Linux server obtain the ip addresses automatically on a network and then shut down all the pc's

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Mar 1, 2010

I'm trying to set up a simple local email service on a small office client-server network. Can I use sendmail without setting up a separate DNS server. If I need a DNS server can I set it up on the same computer as my sendmail MTA? Can it be a private DNS server?

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Mar 12, 2011

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Server :: Giving SSH Access To Machines On LAN From Internet?

Mar 7, 2011

I am having a server in a corporate data centre. There are some virtual machines running on it.The main server is accessible from internet via SSH. There are some people who within the lan access the virtual machines whose IPs on LAN are

Quote:
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.4

from internet only one host is allowed SSH. This machine has public IP and is also connected to LAN on the IP 192.168.1.50. Tunnel is not allowed on our network.So now I am came across a solution as explained on this link. I am not clear with on which machine .ssh/config file I add following

Code:
Host securehost.example.com ProxyCommand ssh user1@insidemachine.com nc %h %p Should above be done on gateway where public IP and ssh is allowed or client on internet who has to login. Do I need to create separate accounts on the gateway also so that the users who can SSH to gateway then are forwarded to inside machines? Or one account on gateway is sufficient for different people logging in via internet to my gateway and then forwarded to internal machine?

Then do I need to create an account user1 on the gateway also?

1) What is the correct syntax for ProxyCommand on gateway's .ssh/config should I use

Code:
ProxyCommand ssh user1@inside.machine nc %h %p
or I should use
Code:
ProxyCommand ssh user1@gateway.com in nc %h %p

2) Should I create new user accounts on gateway also which exist on internal machine?

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Sep 20, 2010

I'm planing to get 4 dedicated, remote servers for my start up, the question I have is: how to do only one installation and then duplicate or clone this installation into all the other machines. I could install those 4 servers manually, but the problem is - we have a lot of things that our application needs, and later there will be more servers. So an automatic way to do that would be better. We are using Debian. Perhaps there's a way to create a "big package" that will contain all of the necessary software in it, then simply require from the hosting provider that all of our servers come with Debian installed, and then manually upload the "big package" and install it?

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Server :: Running 2 Virtual Machines In Virtualbox?

Jul 22, 2009

I cant get my linux server ( centos5 ) with virtualbox run 2 virtual machines in headless mode. Only one machine gets network connection. Can anyone tell me how to make 2 or more virtual machines work with 1 eth-port in headless mode using virtualbox ?

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Aug 23, 2009

I'v multi v-host . need to make each V-Host work under separate user (not apache user).

There is one module/patch call " mpm-itk " . In Debian/Ubuntu every thing is sweet
just do

apt-get install apache2-mpm-prefork libapache2-mod-php5 or aptitude install apache2-mpm-itk

that is all

But in CentOS 5.3 , there is always some difficult different (Why ? I do not know)

Kindly, Look to this solutions : [URL]

Is there possibility to avoid this complications ?

- I need solution without compiling + patching the apache , Is this possible ?

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Ubuntu :: Lucid Server Memory - Can't Run Virtual Machines

Jun 2, 2010

I used to use server 64, and it handled memory well with Jaunty and Karmic but with Lucid the memory usage is always high and can't run virtual machines.

[Code]...

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Apr 29, 2011

After upgrading to 11.04 (x64) in the second monitor I see just the background but no desktop. X server configuration was done in previous versions with NVIDIA X server settings tool.

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General :: Monitor The IP Address Of Machines Who Are Accessing The Server?

May 7, 2010

I have developed a website. Now i would like to monitor the IP address of machines who are accessing the server. The simplest possible solution to this that comes first into my mind is to use jsp inbuilt tags.

Code:
<%
out.print( request.getRemoteAddr() );
out.print( request.getRemoteHost() );
%>

but it has given me some other IP address(May be a proxy server's ip address)

So i was left with one choice is to run netstat on host server . Here is what i have done.

Code:
netstat -an | grep 8080 (As tomcat runs on port 8080).

Should i modify the command or there is any other way around to monitor the IP address?

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Server :: Channel Bonding On NICs From 2 Different Machines With RHEL5.5?

Aug 3, 2010

I am currently investigating channel bonding for rhel5.5.Is there any way I can create one bond from nics on two different linux machines.They will be a cluster without any clustering software like beowulf or LVS.There will be a cluster interconnect through which they can communicate.Should I tweak the bonding module??

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Server :: Putting IP Blocking In A Separate Conf File?

Jan 1, 2010

Running Red Hat (not sure of the build atm) and I need to be able to put all of the IP blocking in a separate file. It will eventually be uploaded to a large number of hosting accounts, and modified from time to time...so it isn't feasible to modify that many httpd.conf files each time we need to add an IP to be blocked. In httpd.conf I can add the "Deny from" line to the following directive and blocks it just fine:

Code:

<Directory "/var/www/html">
#
# Possible values for the Options directive are "None", "All",
# or any combination of:
# Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews

[code]....

There is an include to pick up all *conf files in ../conf.d, and everything else in there is working just fine. I created a file called robots.conf; it currently has a set of mod_rewrite rules which work. So I added this to that file:

Code:

<Directory "/var/www/html">
Order allow,deny
Allow from all
Deny from 123.456.789.098
</Directory>

It is not blocking access from the IP with it in there.I've done all of the usual things; restarted Apache, cleared browser cache etc. I can also block it using that same directive in a local .htaccess.

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Jun 27, 2009

First off I am new to Linux and fairly new to working in Networking and Server config's. I have been using Windows for years and have been learning Windows Server 2003 as I have a Technet account, I can get any MS software. I would like to learn Linux and use this as my Server environment. My project looks like this: I have a Quad core, 8gb machine. I want to install a distro of Linux (server or desktop) and run Virtual Machines on it.

My perferred way would be to use Virtual Box but I could use VMware products if that was better. I would like to run WS2003, WS2008, Linux Distro and anything else that will run in a VM. I can figure out that part pretty easily. I want the Linux host machine to run all these VM's and access and use them on my MAC remotely. I have done some research on ESXi as well, but I don't think my Hardware is going to support that. My exact PC spec's are:

AMD x4 940
8gb DDR2
Gigabyte MA770-UD3
2 Velicoraptor Drives
GTX 260
I will be dual booting this machine on one of the Raptors for gaming as well.

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Ubuntu Servers :: Access Remote Servers Via Terminal Server Client And Xserver?

May 10, 2010

i found this video, and i really want to do the same. *newbie needs to learn [URL]...my question is, what need to be installed and how?

is there any specific configuration to make it works?

and will it work if i want to connect from Ubuntu to Fedora ?

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Fedora Networking :: Block Virtual Machines Access To Server

Nov 10, 2009

in my network, users has total access to their PCs, so theres a problem to filter (URL, ports,etc.) their virtual machines installed (they can assign self any IP, e.g.)

Id thought about use the MAC prefix in VMware VMs (00:0c:29:*), but i can only found a way through DHCP, and this isn't a good solution (they can assign a static IP to workaround...)

It will be better using firewall (iptables), but I don't found the way to add rules based in MACs with wildcards.

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General :: DHCP Server Inside A Virtual Machine Can't See Other Machines

Jun 2, 2010

I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. I'm assuming I need to be able to connect to my next-server but maybe I'm wrong.

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