0
votes
0answers
637 views

Proxmox - Port forwarding from Host to Guest

I'll just quickly start by apologising due to my lack of knowledge in Linux networking and I appreciate all the help I'll receive from any patient users willing to help a newbie. I have a Linux ...
0
votes
0answers
194 views

Changing X-Original-To: header in postfix

I am using a virtual file with my postfix to redirect all mails coming to my domain to a user My virtual entry looks like this @domain.com root Now the X-Original-TO header shows root@domain.com. ...
0
votes
1answer
191 views

Advice on setup to run Shiny Server (requires Linux) for R web apps when we have a Windows 2008 R2 Enterprise Server?

I am a rookie when it comes to servers, but I have nonetheless been the one asked to get Shiny up and running for web applications in the open-source statistics and computing environment R at my ...
-1
votes
1answer
59 views

Lost access to my Virtual Machine on linux server pool after I used sys-unconfig command as root

the network admin gave me an IP address for Red-hat VM on his linux server pool; but lately I used the "sys-unconfig" command as a "root" user, and now I lost my access to the V-Machine; I cannot ...
6
votes
0answers
79 views

Why do I need to assign static ip address to the bridge and not to the physical interface? [duplicate]

I have bond0 with two physical interfaces in it. Normally I used to assign static IP address to this bond0 to set up internet connectivity on the server. Now, because of LXC virtual guests, I had to ...
-3
votes
1answer
540 views

linux ftp server with virtual users [closed]

i know there are already similar questions for this matter but the answers doesn't really make much sense to anyone who is not really technically comfortable in Linux. I've already tried articles ...
2
votes
4answers
561 views

backup an existing linux server to a virtualbox virtual machine

I have some servers and VPSs to many companies across the world. I want to back them up locally. I have some backup solutions enabled to remote hosts, but I want to have a local backup on a computer ...
1
vote
0answers
353 views

Oracle Virtual Server OEL vm fails to start - kernel panic on cpu identify

I am in the process of following a guide to setup various oracle vm templates, so far I have installed OVS 2. 2 and got the OVM Manager working, imported the template for OEL5U5 and created a vm from ...
2
votes
2answers
363 views

Randomly crashing Ubuntu 10.04 on multiple Xen VPS host instances

So we have Ubuntu 10.04 running - all 64 bit. Kernel 2.6.36 and 2.6.38-15 are having the same issues. Problem is random VPS servers are hanging. We have about 30 instances with this particular ...
0
votes
1answer
128 views

Re-route/proxy FTP connections to different VM's depending on username

I have a setup of several virtual LAMP servers. Incoming http requests are routed with virtual domains and mod_proxy in apache2. Now I need to set it up so my different users can access there ...
-2
votes
2answers
136 views

What steps should I take after my virtual server was compromised? [duplicate]

Possible Duplicate: My server's been hacked EMERGENCY I have a small virtual server running Ubuntu set up for the personal use of myself and a friend. The server runs Postfix and ...
1
vote
2answers
3k views

Connect to Oracle Database that is hosted in a Virtual Machine from the host machine

Good day, I've just setup a Virtual Machine (using VirtualBox) of Oracle Linux with Oracle Database in it. After setting it up, I can verify that I can connect to it using sqlplus (sqlplus of the ...
0
votes
1answer
537 views

How to NAT virtual interfaces

I've created a virtual interface in Ubuntu with the following: sudo ifconfig eth0:0 192.168.1.99 netmask 255.255.255.0 up Now I need to be able to ping from the new virtual interface. ping -I ...
2
votes
1answer
3k views

Create and bridge virtual network interfaces in Linux

I have a tool that replays traffic from a .pcap file and another tool that interprets that traffic. For testing purposes, I need to play traffic out one interface and have it come in another. ...
2
votes
2answers
2k views

How to set up internal routing between virtual interfaces and real ethernet interface (Linux)

I have a Linux box with one real (as opposes to virtual, a.k.a. aliased) Ethernet interface I can use (eth0 is used for other purposes - can't use it, nor can I add more NICs). Say it's eth1 I need ...
4
votes
1answer
7k views

why is kswapd using high CPU on an idle system?

I have an idle Linux centOS system and yet kswapd is using 100% cpu. All I have running is a single bash session with top running.... I have 32G RAM and yet kswapd is constantly using 100% cpu for ...
0
votes
3answers
105 views

What is the preferred way to host the Active Directory service, given that we are a Linux shop?

We would like to employ Active Directory to handle duties including DNS, LDAP, domain-controller stuff, etc. The obvious way to do this would be to install Windows and run AD from there. However, we ...
0
votes
1answer
281 views

How to mirror a VM directory on a the host machine?

Doing web development I love having all the tools I've grown used to right here at my disposal. Right here, meaning on my local machine. I don't mind popping Vim for a quit edit or config setting on a ...
1
vote
2answers
104 views

What web server / plat form should I use? (Cloud / virtual / dedicated / shared)

Hi I am an experienced website developer but have not had much experiences of hardware server con fig. I am starting a new job and need to sort out the companies website requirements. They need php ...
2
votes
1answer
454 views

Virtual interface statistics on Linux

I am trying to get statistics about virtual interfaces I have configured on my Linux box running Ubuntu. /proc/net/dev contains entries for lo and eth1, but I also have two virtual interfaces, lo:2 ...
1
vote
1answer
256 views

How to prevent response to who-has requests on virtual eth interface?

we use small embedded X86 linux servers equipped with a single physical ethernet port as a gateway for an IP video surveillance application. Each downstream IP cam is mapped to a separate virtual IP ...
24
votes
5answers
58k views

Top - what does Virtual memory size mean? …linux/ubuntu

I am running top to monitor my server performance and 2 of my java processes show virtual memory of up to 800MB-1GB. Is that a bad thing? What does virtual memory mean? And oh btw, I have swap of ...
0
votes
1answer
1k views

Corosync - stopping the service crashes the server

I am trying to set up a test cluster on a Xen Server with 2 paravirtualized CentOS 5.4 machines. I am using Pacemaker+Corosync, and following the instructions found at ...
-1
votes
1answer
509 views

Help about NAT with virtual server

I have a dedicated server running Linux CentOS 5.3 with 2 IP addresses. I've installed a virtual machine using VMware Server. The host and the guest have a host-only network. Now I want to map the 2nd ...