Red Hat :: Installing RHEL6 Remotely From Active System?

May 2, 2011

I'm in a bit of a unique situation here. I have a remote system running two instances of RHEL5.1 (dualbooting) and I need to install RHEL6 on the other partition from the active one. I understand that you can't upgrade 5.1 to 6.0 so I would need to do a fresh install. My basic question are, is there a way to install an OS from an existing OS to another partition? Can anaconda be run from an already installed system? Is it possible to manually install a system just from RPMs?

I've come across things like debootstrap for Debian and haven't found anything similar for Red Hat systems.

As I'm currently in a different part of the country from this machine I would like to achieve this without having to be physically at the box or reboot the machine (reducing risk of being completely cut off from it).

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Red Hat :: Installing A RHEL6 Kernel (2.6.32-71.18.2.el6) On A RHEL5 Server?

Mar 22, 2011

I'm trying to install a RHEL 6 kernel from src in RHEL 5 I can install the kernel source without any issues, but then I'm having problems installing rpm-build 4.8 I get the following errors:

Code:
Error: authconfig conflicts with nss_ldap
Error: udisks conflicts with kernel
Error: Missing Dependency: python(abi) = 2.4 is needed by package alchemist-1.0.36-2.el5.x86_64 (installed)

[Code]...

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General :: Installing RHEL6 Using Oracle Virtual Box Having Win 7 As Base OS?

May 10, 2011

I have Win 7 installed on my laptop with 4GB RAM. I have installed Oracle VirtualBox-3.2.8-64453-Win. Kindly let me know the steps to install RHEL 6 on this.

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General :: RHEL6 Hangs While Installing On ST3160215AS ATA Drive?

Mar 14, 2011

would be great if somebody can help me suggest why RHEL6 installation does not start? If its a problem of disk drive,

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Red Hat :: System-config-network In RHEL6 / Can't Configure NIC To Connect To Internet?

Jan 30, 2011

As i describe the thread,i won't be able to configure my NIC to connect to internet which is basically done by just running system-config-network in shell to configure xDSL connection.But instead of system-config-network it contains system-config-network-tui which is used for ISDN connection.And after running system-config-network as well as system-config-network-tui it shows the same output which is in attach file

After some google search it shows that there is bug with system-config-network and it is fixed in system-config-network-1.6.0.el6.2-1.el6 but i wont be able to find it.

As i m not subscribed to RHN

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General :: How To Update Newly Created Partion In RHEL6 Without Rebooting System?

Apr 17, 2011

How to update newly created partion in RHEL6 without rebooting the system?partprobe /dev/sdaN...does not work here in RHEL6, however it did work in RHEL 5.

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Server :: How To Control Windows System Under System Like Active Directory Authentication

Jul 18, 2010

How to control a windows system by using linux server i know linux is a cross flatfarm. But how to Authenticate windows system like in windows we use AD for user authentication.

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Ubuntu :: Can't Logon To Active Directory After Installing Smbclient?

Jun 5, 2010

I am having a problem using smbclient on my Ubuntu 10.04 workstation. I use likewise open5 to authenticate to a windows server 2003 domain controller. I installed the smbclient utility mounted the network drives to the local desktop, then all of a sudden I cannot logon to my active directory domain controller. If any one knows what I am talking about what am I doing wrong?

Do I need to change my smb.conf file? Or do I need to download another repository or utility?

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Ubuntu :: How To Properly Shut Down System Remotely With SSH

Apr 21, 2010

So I've got a backup server that has a daily cronjob to back up all my systems. My desktop PC is usually in sleep mode to save power. So my backup server has to wake up the desktop via wake-on-LAN to start the backup job. When the backup script is done, my backup server sends a shutdown command to the desktop to put it back in sleep mode.

The trouble is that SSH is timing out during the shutdown process and waits a ridiculous amount of time before giving up and allowing my backup server to move on to the next backup script. Here's the portion of my backup script for the desktop that does the shutdown stuff:

Code:
ssh user@host.lan '/usr/bin/shutdown -p +1'

Here's what cron sends me via e-mail:

Code:
Read from remote host host.lan: Connection timed out
real 164m46.280s
user 5m16.160s
sys 1m39.760s

Normally the entire backup job will only take about 5 minutes. But because of SSH timing out, it takes 164 minutes!

As a matter of detail, my backup server is running Ubuntu 9.10, and the desktop is Windows 7 x64 with Cygwin. The -p option for the shutdown command in Cygwin is for sleep mode.

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Red Hat / Fedora :: Remotely Access A System That Have Windows OS?

Jan 29, 2010

me using redhat linux.i want to to remotely access a system that have windows OS.I tried to install the utility rdesktop using following command. "yum install rdesktop" the following error occur

"Loading "security" plugin
Loading "rhnplugin" plugin
This system is not registered with RHN.

[code]....

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General :: Remotely Test System Install CD For Integrity?

Dec 6, 2010

If you do, after the completing the test - it will eject the CD.

and how are you going to reinsert the CD to complete your install? you're remote remember ??

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Ubuntu :: Remotely Kick Off A 100% Automated System Update?

Jun 17, 2011

I have a client that needs 5 machines updated. They are all running Ubuntu 9.04. Long story short, I can only log in over VPN for the time being (as they're in another city).

That said, is there any good way to remotely update the systems without the need to remain logged in (e.g.via SSH)? I'd like to simply kick off the updates and check back in at a later time.

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Ubuntu :: Remotely Wake On Lan - Remotely Turn On Computer

Jan 4, 2011

Does anyone know or recommend some software or a script to remotely power on a PC from standby to on, or even better from completely off?

I guess the completely OFF to ON is much more complicated - would probably require an extra piece of hardware(?)

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Networking :: Remotely Login To Remotely Display Data?

Jun 29, 2011

I'm not terribly new to Linux, but I am new to the forums, so hear me out! I am in the process of creating an electronic mapwall for our meteorology program, and have designed the computing system from scratch. I have two Linux Boxes, each with capabilities for 6 attached monitors...a total of 12 displays driven from two machines. My intention is to have one machine be the master...it has a touchpanel control. The inputs to the touchpanel will then trigger events for the both the master and the slave machine to display. Each of them has a specific IP address (DNS entry), and are not on a subnet.

Now...is there a way to remotely login to the slave machine and have it display on it's OWN monitors? The code is Java and which works on the master machine to animate directories of .gifs for each of the master's attached monitors. I will most likely have Java execute shell commands for the remote login (ssh), but I believe the answer lies somewhere in the X-configuration. Do I have the machines in an adverse configuration (creation of a subnet would be better)? Lots of questions...lots of desire...few answers!

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Ubuntu Security :: Remotely Creating A Desktop Account On Another System?

Mar 25, 2010

I am at my own desktop and I have root access on my own desktop.

I also have root access on a Desktop Ubuntu system (192.168.5.10) on the LAN. I need to create another desktop user account on that 192.168.5.10 system.

So I logged into that system with: ssh -Y myself@192.168.5.10
Then I did: sudo users-admin

This brings up the Users Settings but the Add User and Unlock buttons are disabled. How do I enable these buttons?

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Ubuntu Networking :: Setup The Most Efficient Way To Remotely Administer A System?

Aug 7, 2010

I am trying to setup the most efficient way to remotely administer an ubuntu system. So far I was successful in setting up ssh. I have the server running and made sure it only uses keys to authenticate and changed the default port. I can connect to the ssh-server. This system is behind nat and bots trying to break-in when I forwarded the port. I used the AllowUsers option, which helped in knocking back these rouge connections. I was not comfortable leaving a port open all the time, so I set up logmein Hamachi VPN and closed the ports that were open on NAT.

Now I use Hamachi and am very impressed. I use VNC in VPN. But Vino is slow, I tested x11vnc and it was slightly faster. I also tried to set up freenx but nxsetup file was missing. some one posted that file in the forums and suggested copying to the system but I was not sure if I want to download a script from the forum and use it. So for the time being, I thought I will just concentrate on X11vnc until freenx is fixed.

I would like to create a separate desktop on the server and use it to access remotely. This way we will not have to fight over the cursor (sounds funny but very frustrating). From what I understand x11vnc has this function inbuilt (uses vncserver). I cannot get it to work! when using ssh, at the remote machine's command prompt, if I type "evince xyz.pdf", it does not launch the "xyz.pdf". what am I doing wrong? When using VNC, how can I change between different users on the remote machines? Right now I can only use VNC in one account that I first setup. When I try to change to another user, vnc client goes blank. How can I get as much control of the remote system as possible? Right now I need someone to switch on the remote system and login to their account before I can VNC. Can I use ekiga inside VPN, I use skype right now and it's sometimes terrible with dropouts. I looked around and someone suggested using ekiga as it works very well over lan. How do set up ekiga so that I have a direct connection with the remote system? Is there any client that just takes the IP address and creates a connection? Mumble seems to be the popular choice, it's most suited to LANparties, I just need a connection between two systems. I am trying to set this up to help users with hardly any computer knowledge to use the system without any issues.

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Ubuntu Servers :: Extending File System Partition Remotely?

Aug 24, 2010

I'm still pretty new to servers and ubuntu and have ran into something I could see being a problem in the future. On a dedicated remote server I have installed a web server using the "How To Forge - Perfect server set up for ubuntu 10.04 and ispconfig". I have a forum and email up and running and shoutcast radio and teamspeak3 servers also. We can also nx into it if need be. I can reformat the 1T hdd remotely from my provider control panel and ssh is installed at the same time and a new root password is sent via email. The thing is I now realise that by default the file system is written to a 10gig partition.

This might usually be ok but ispconfig uses the /var/www folder on the file system to house the forum I host and the partition is filling up. My mate I co rent with is talking about starting a parrot/bird owners forum and i might eventually like to have a gaming forum as well. I realise I should probably have set things up differently but like I said I am new at all this and tbh the home directories never going to have much in it so theres 900 gig doing nothing. So my question is can I use anything to enlarge that partition remotely? I know theres gparted on disc and all the articles I found say I need to use a disc which obviously is out of the question.

So what I think I need is some sort of partition magic for ubuntu. I would really like to expand it so all my current files etc on it would stay as is. I'm also currently looking into back up methods and wondered if that would be the way to go? Back up my file system and home directories and then reformat and make the partition larger? Or could I copy the entire www folder to a newly created folder in /home and re write the site enabled files to point to it? Would this work and if so what else would I need to edit?

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Red Hat :: Join A System On Active Directory Domain?

Mar 4, 2010

i have installed RHEL5 on my system.i want to join my system on my organisation s active directory domain.how can i do it?suppose domain name is "abc-xyz"

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Ubuntu Servers :: Setup Windows Active Directory System?

Mar 24, 2011

I need to setup windows Active Directory system and want to use our existing ubuntu server as Primary Domain Controller (samba). What I'd like to know is if its possible to setup a machine running standard Ubuntu as the PDC, or if I would need to install Ubuntu server.

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Server :: Login Windows Active Directory Users In System?

Jan 22, 2010

I have running windows 2008 active directory. need to login ad users to linux system, which is inside the windows domain

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Ubuntu Servers :: MySQL - Setup An Active / Active Load Balanced And High Available?

Mar 11, 2011

how to setup an Active/Active Load Balanced and High Available (If one of the nodes is down the system still runs) MySQL cluster. I have found quite a few howto's but I have some things unclear in my mind. I found a few solutions like this one: [URL] or this: [URK] Those are using two or four MySQL nodes, two Load Balancers to avoid a single point of failure but only one MySQL cluster management server. What happens if the MySQL cluster management fails?

I have also found a "MySQL Master-Master Circular Replication" technique but from what I read, with this option there is a chance that conflicts will arise if node A and node B both insert an auto-incrementing key on the same table.

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Fedora :: Attach A RHEL/CentOS System To An Active Directory Domain?

Mar 22, 2009

Attach a Fedora/RHEL/CentOS system to an Active Directory DomainBelow is a step by step outline of how to configure a Linux Samba fileserver to use an Active Directory domain for authentication and authorization in place of flat files. Note that this configuration has been replicated using Fedora 10, RHEL 5.3 and CentOS 5 since they all more or less share the same code base.me of the example server in this document is erver1.domain.forest.org, substitute correctly where appropriate. At the very least following packages must also be installed:

sambasamba-commonsamba-clientkrb5-workstationopenldap-clientsIt would be prudent to understand the underlying concepts of how Kerberos and Samba work prior to deploying this type of server. I find that SE-Linux will interfere with Samba services, particularly with winbind. I usually set SE-Linux to be in a permissive mode. It is possible to update the SE-Linux policies but that is outside the scope of this document, i.e you're on your own. In some cases I turned SE-Linux off since it was causing winbind to stop responding.

1. Set NTP to use the correct server for your Active Directory domain:shell> system-config-timeSet the primary NTP server to be your domain/forest NTP server2. Make backups of and edit the following system configuration files:a. shell> cp /etc/resolv.conf /etc/resolv.conf.bakb. shell> vi /etc/resolv.conf

nameserver dns_server1_ip_address
nameserver dns_server2_ip_address
search domain.forest.org

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General :: Connect LDAP On SLES IBM Mainframe System To Active Directory?

Sep 30, 2009

I am looking for help connecting my mainframe Linux to the active directory world.

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Ubuntu Installation :: "can't Find Active Filesystem" When Installing From CD

Dec 1, 2010

I am trying to install I get some sort of error relating to the hard drive, on ubuntu it's that it can't find an active filesystem, on XP it blue screens and tells me to run chkdsk. I've tried with a few different hard drives, all of which allow me to boot into the already installed OS fine, but give me the exact same error when trying to install an OS. After playing around taking the hard drives in and out and reformatting them it will occasionally get past the problem, but not without a significant amount of screwing around, and if I don't install on that occasion and just restart without changing anything the problem will reappear.

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CentOS 5 Hardware :: IBM "hard Disk Active Protection System" Tp_smapi?

Apr 10, 2009

the HDAPS system in IBM / Lenovo Thinkpad laptops is, in principle, supported by the hdaps kernel module. However, it is actually *useless* since it refuses to load on current models which report Lenovo as vendor ID instead of IBM The alternative is the tp_smapi module which, according to ThinkWiki, is strongly recommended anyway. It is not available in any CentOS repo, so I tried to compile it. However, I get the following error:

/root/devel/tp_smapi-0.40/tp_smapi.c: In function tp_suspend:
/root/devel/tp_smapi-0.40/tp_smapi.c:1241: error: PM_EVENT_HIBERNATE undeclared (first use in this function)
/root/devel/tp_smapi-0.40/tp_smapi.c:1241: error: (Each undeclared identifier is reported only once
/root/devel/tp_smapi-0.40/tp_smapi.c:1241: error: for each function it appears in.)
make[3]: *** [/root/devel/tp_smapi-0.40/tp_smapi.o] Error 1
make[2]: *** [_module_/root/devel/tp_smapi-0.40] Error 2

[Code]..

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Ubuntu :: Determine What Repositories Are "active" On System?

Jun 21, 2011

How can I determine what repositories are "active" on my system? Is there a way that I can enable and disable repositories? My preference would be to work from the command line.

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Ubuntu :: Only Single Core Active On Quad Core AMD When Acpi Is Active?

Jun 8, 2011

Only Single core active on quad core AMD when acpi is active.with acpi=offuname -aLinux dvip4 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux

Code:
cat /proc/cpuinfo
processor : 0

[code]...

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Fedora Security :: Entire System Had Been Hijacked The Remote Desktop Icon Was Active There Was A Message In Gnote Saying "youve Been Own3d"?

Jan 11, 2010

was home when the attack took place I was running a vnc server that was tunnled thru ssh. At approximatley 5:00 pm eastern time my box turned on firefox and flashed a popup. I tried to get to the logs and then realized that the entre system had been hijacked the remote desktop icon was active there was a message in gnote saying "youve been own3d". The system Is a old mac mini PPC system and i plan on looking at the system log with a netboot cd by running linux rescue at boot. my question is how do i gain access to the system log from a rescue cd to find out how much damage this hacker did?

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General :: Run Kvm (rhel6) On 32 Bit Architecture?

Jun 20, 2011

i am using acer extensa 4620 laptop of 32bit architecture with core 2 duo processor and 1 gb ddr2.i have installed RHEL 6. i want to do practice on virtual machine for my rhce exam.due to 32bit architecture i am not able to use kvm one more problen,during installation of RHEL6 i cannot use "install or upgrade" option while booting dvd.after entering this opiton my screen goes blank nathing comes,but i am able to install usic "basic video driver option" same problem i face when i enter in rescue mode also..... nothing is displayed...the screen goes blank

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Red Hat :: Install Firefox 4 In RHEL6?

Apr 22, 2011

Is it possible to install firefox 4 in RHEL6? I can't find a mirror for this package.

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