Red Hat / Fedora :: Setup And Configure A Server Entirely With Text Only Run Mode 3 On A Virtual Machine
Feb 24, 2011
I'm trying to setup and configure a server entirely with text only run mode 3 on a virtual machine so I can redo my current live server. I'm now trying to set up the firewall of the system using iptables. I've read up on it and came up with the following:
-clear all rules
#iptables -F
-set default policy rules
#iptables --policy INPUT DROP
#iptables --policy FORWARD DROP
[Code]....
Everything above worked for me but just out of interest I looked at my live server which was configured using a GUI. I ran iptables-save and it was pretty much the same but its port open lines read like this:
#iptables -A INPUT -p tcp -m state --state NEW --dport 80 -j ACCEPT
so finally my question is do I really need the "-m state --state NEW"? Wouldn't having that drop established connections on those ports? I'm just confused as to what exactly the NEW state is doing and would it make a difference if I didn't include it.
I successfully installed the virtual box on my fedora 8 system, and also created a virtual machine with windows xp OS, it works nicely, I try to configure the serial port of my virtual machine and try to configure the path for the port "screen shot are attached" it gives me the error message also the "screen shot are attached" for your review.Is kind of mistake is going on during the path setting, and how to set the path for configuring the serial port of my virtual machine so that I can use the hyper terminal tool of windows.
I have installed CentOS on a VMwareWorktation and that CentOS, i also install VMware Server (suscess) and setup a guest OS that, but i start this Guest OS, an error show "You may not power virtual machine in virtual machine"...
The system always boot up in Graphic Mode. After installation of Web Server, I want to disable Graphic Mode and change it to boot to Text Mode to save memory. Is there a way to disable graphic mode?
I am using Ubuntu 10.04, 64-bit. I am trying to set up a virtual machine on it using vmbuilder. As I understand, I need to set up bridging. If I set up br0, then I cannot get out of the machine. Even a ping to 192.168.1.1 (my gateway) comes back as network unreachable. If I comment out #auto br0, then I can get out (on eth0), but i get an error from libvirt. My /etc/network/interfaces file (eth0 networking works, but libvirt does not):
#auto eth0 #iface eth0 inet dhcp auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.1.154 netmask 255.255.255.0
I'm working on a script. fter it has installed and removed packages, I need to configure a ton of settings. In GNOME, I understand that those settings are kept in "/home/user/.gconf". Can I create a virtual machine and configure the system through the GUI to my liking and then dump all of the settings, so that I can load them on another machine? Is it as simple as copying the directories?
is it possible to setup a DHCP server using the loopback or a virtual interface? I installed Sun VirtualBox on my fedora system and want to try and kickstart them from within the same box on a virtual network. Is this possible and has anyone done it? I only have a single NIC in the box and it is on my public network.
I'm running and XP virtual machine using KVM / QEMU. THere are time when I need to copy text from an application in the Fedora host machine and paste the text into a different app in the XP guest machine. I was able to do this using Vitualbox on an earlier version of Fedora.
I'm Rebuilding all the servers in the company I work for. I read anything I found about best practices in virtualizing, but I didn't find anything about virtualizing Apache. As MySQl is not considered to be virtualized as a best practice but to be on a separate machine - my question is "Do I virtualize an Apache server or put it on another real machine?". And also I'm going to put the server on Ubuntu!
I run a custom build of linux running kernel 2.6.24 and busybox. At the moment I'm investigating a kernel panic. The problem is that after 10 minutes the screen is blanked, i.e. it is still on but has been turned black. If you press a key then the command prompt is shown once again, but if the kernel has crashed then this won't work and any info about the panic is inaccessible. So I'd like to prevent the display being blanked. I've tried booting with 'apm=off' and 'apm=off acpi=on' kernel parameters but neither had any effect.
im currently using a RHEL5 RIS server in my Lab to deploy rhel5 for all my systems. everything has been configured and installation works fine, but i am not able to run the installation in text interface mode. when i type "linux text", i get an error saying invalid kernel parameter. i'll paste my /etc/dhcpd.conf file here. please have a look and let me know what changes i should be making in order for my text interface installation to be working.
I just recently purchased a vs from a company and i am trying to set up a web site on it with kloxo and set up the mail for it upon setting up the mail settings it says:
"It is very essential that you set the my name to a properly resolvable hostname, since otherwise, many public mailservers like hotmail will reject mails from your server"
Now this is my first time setting up a vs before i have set up linux vm's to get email access but that was about a year ago.
I installed the Centos 5.5 with XEN and put 03 virtual machines (Centos 5.5 too). I did this correctly, but I have a problem. In the virtual machine, I need update the kernel. I used "yum update kernel" and this is downloaded correctly and the menu.lst file is updated too, but the kernel not ran. I ran "grub-install /dev/sda" or "grub-install /dev/xvda" and received a error return. I read the device.map file and i ran "grub-install /dev/sde" and received a error return too.
The errors: [root@vm01 ~]# grub-install /dev/sda /dev/sda: Not found or not a block device. [root@vm01 ~]# grub-install /dev/sde /dev/sda1 does not have any corresponding BIOS drive. [root@vm01 ~]# grub-install /dev/xvda /dev/xvda: Not found or not a block device.
To force myself to use CLI all the time, I've installed Ubuntu Server edition on my work laptop. However, I still want to be able to view PDF ( rendered as normal PDF, not converted to text ). Basically I want a totally CLI environment, except for PDF viewer.
I installed it on very old machine P3 1200Mhz and it works ok but I have problem with text mode because I have 75x132 aprocs. text on screen and I don't see what I type or system replay. Is there simple way to change to 25x80 or something with greater letters. I don't have GDI.Someone sad to me to do:sudo dpkg-reconfigure console-setupand it's does the job but when I restart system it's gone.
I want to set up the following server in open suse:dhcpopenldapnfs (to allow users to mount their home directories from the serverI started off with the openldap server. I configured it with dc=localdomain,dc=local as its domain. As the server machine has no internet. Though when I go to add a .ldif file with the following command
Code: ldapadd -x -D 'cn=Administrator,dc=localdomain,dc=local' -f /home/base.ldif -W It returns this
I have 4 domains registered through godaddy. I have a dell poweredge box with one static IP hosted somewhere. I want the 4 domain to resolve to four different sites. I have already created 4 different sites in apache with four different aliases and has enabled it.
eg alias /a /var/www/a alias /b /var/www/b alias /c /var/www/c
I tried with godaddys forward with masking option. It works but I can't hide xx.xx.xx.xx/a in the links. Whats the best approach? One limitation is I cannot use the webhosts name servers. How do I set this up with name based virtual hosting? Do I setup a DNS server in the box?
I do have a dns host name for my box which is publicy accessible. Some my.ca.examplehost.net
I am setting up a virtual server on CentOS that I want to use as a VPN endpoint. How much resorce should I allocate to the virtual server ? I'm not expecting it to do anything else other than host a small VPN, traffic will be medium / light. I'm tempted to give it minimum ram and drive space.
Since a few weeks I cannot open a console in vmware server 2.0.2 anymore. I don't know exactly when this started because I use vmware only occasionally (I have only 1 program (an old Ashlar DrawingBoard) which does not run properly in wine). VMware server and the console have been working before without problems, but now I get the message "Cannot connect virtual machine console." and it times out. This is on Opensuse 11.1 with VMware Server on the same pc, Firefox and the guest is Windows2000.
I have tried to disable all extensions in firefox 3.6, disabled the firewall, even created a new user (on the same pc) with a clean firefox, all without any result. However when I connect from a different computer which runs Internet Explorer under windowsXP, then I can get the console without problem.
So, somewhere there is something wrong between Firefox and VMware server.
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.
I'm a web developer and I am building a site on a CMS that has issues moving from a WAMP server to LAMP. The live server is LAMP and I am running Windows 7. I don't want to run into problems moving from the test server to the live server, so I was wondering if I could somehow run Linux using a virtual machine (using Windows Virtual PC which I think supports Linux or VirtualBox) and then using a Linux equivalent of WAMP2 server as a test server. how to do this and what the best Linux distribution to use would be?
I have an Ubuntu Desktop 11.04 virtual machine using VirtualBox on my Windows 7 system.
Up until now I have been doing all my development within the Ubuntu environment but unfortunately, I don't like it. I want to move back to Windows, which is much more familiar to me but I would still like to access the virtual box like a virtual server as it is already set up with Apache, PHP, Pear, Git etc...
How can I make the two work in harmony? I essentially want to be able to start the VM and connect to it as if it was a server machine somewhere on my network, without having to actually buy another machine to put on my network.
I'm running CentOS 5.5 x64 and have just installed VMWare Server 1. I am able to create a new Virtual Machine, but when I go to power on the VM in order to install the OS (windows server 2003), either the host crashes/reboots (with "Run in Debugging Mode" turned on) or the VM simply does not start (with that Debugging box unchecked) and in the log there is an error along the lines of VMware Server unrecoverable error (vmx)
Has anyone else here had a problem getting virtual terminals to work when booting into F15's 'graphical mode'? This is what used to be runlevel 5 in the old SysV init system, before the switch to systemd. Before F15, I could do a Ctrl-Alt-F[n] (for n=1,...6) to get virtual terminals while in runlevel 5, and this was easy to control by editing /etc/inittab.
But with systemd, /etc/inittab is no longer used, and finding where the virtual terminals get created took me a bit of time. I tracked it down to the /lib/systemd/system/prefdm.service file, which seems to stop creating virtual terminals after tty1 in order to prevent the display manager and plymouth from conflicting on that virtual terminal. I'm using the Slim display manager (installed via yum), and I only got tty1 (showing console messages), tty2 took me back to X, and there were no tty3-6 any more. I noticed from ps that there was some kind of "plymouth --wait" process running, so I killed it. After doing so, the other virtual terminals showed up. Has anyone else here experienced something similar?
It appears that /lib/systemd/system/plymouth-quit.service is not exiting properly, and this is causing the problem. This problem only occurs in graphical mode, not in console mode (what used to be runlevel 3). My first solution was to put "/bin/plymouth quit" in /erc/rc.d/rc.local, and upon rebooting that did indeed fix the problem. But eventually I just removed plymouth altogether, which also fixes the problem. It would be nice though if plymouth-quit.service just worked as it was supposed to. I'm just wondering if anyone else has seen this problem.
