similar to: How to dump/restore a CentOS 7 system

On 2019-09-25 11:31, Xinhuan Zheng wrote: > Hello All, > > I guess it is very common for administrative purpose, to dump and restore a CentOS 7 system. Though I can not answer OP's question, I have question of my own. Is this really routine (often) task for Linux sysadmins? I used something like that to replicate cluster nodes in the past, but kickstart would be routine task for

Dear Earl Ramirez, >I created a custom ISO a couple of years ago [0], you can use it as >your base of one of the following links[1-4], should be sufficient to >get you started. >[0] https://github.com/EarlRamirez/snipeit_iso In above github project, in https://github.com/EarlRamirez/snipeit_iso/blob/master/isolinux/grub.conf file, there is ?@? symbol for splashimage, and for kernel,

Hello, Today I searched redhat official portal and learned that Sendmail is considered deprecated. By default, CentOS 7 will use postfix as MTA. I need good advise on what it means to us. We are CentOS customers. We use that operating system for quite a few years. We rely on Sendmail for years for us to relay large quantity of emails to our customers for marketing purpose. We build our additional

Valeri Galtsev wrote: > On 2019-09-25 11:31, Xinhuan Zheng wrote: >> >> I guess it is very common for administrative purpose, to dump and >> restore a CentOS 7 system. > > Though I can not answer OP's question, I have question of my own. > > Is this really routine (often) task for Linux sysadmins? I used > something like that to replicate cluster nodes in

Hello, We need to manage isolated network environment so that even though host name and ip address could be same, but they are located in isolated network environment so that?s not a problem. However, that would be very challenging to build a server in such an isolated environment. For example, we could do kickstart to build a server in non-isolated network environment, but for isolated one, we

Hello Everyone, We are using CentOS 5 system for certain application. Those are VM guests running in VMware. There is datastore issue occasionally, causing all file systems becoming read only file systems. So application stop working, and opened files cannot be written either. We cannot even ssh login to the system. Typically we had to power cycle the VM. We are trying to add reliability to the

Hi, I am recovering a CentOS 5.4 system. I've copied all partitions into the recovery system. I've installed grub boot loader. However, the original system is using /dev/sdb1 for root (/), while the recovery system is using LVM (/dev/vg0/lv1) for root (/). When recovery system boots, I got the panic error: * Mounting /dev/sdb1 on /sysroot * Mount: mounting

Hi, I'm currently setting up a local FTP server, to receive disk images sent with G4L (Ghost4Linux). This server has been running Slackware Linux before, and the Vsftpd setup was relatively simple. With CentOS things seem to be slightly different, so I'm currently trying to work things out. For the moment, two things seem to be creating problems, the simple iptables firewall and

Hello, I posted a question over at xenproject.org but it was recommended that I send out a message here for help. My post there: http://www.xenproject.org/help/questions-and-answers/vanilla-pv-centos-guest-via-kickstart-centos-6-6,-xen-4-4.html The TL;DR is: Everything I've found to kickstart a new vanilla rhel/centos guest points to specifying a kernel & and initrd- for RHEL/Centos 5.

Hello CentOS list, I have a requirement that I need to use encryption technology to encrypt very large tar file on a daily basis. The tar file is over 250G size and those are data backup. Every night the server generated a 250G data backup and it?s tar?ed into one tarball file. I want to encrypt this big tarball file. So far I have tried two technologies with no success. 1) generating RSA 2048

Am 17.12.2014 um 18:42 schrieb Les Mikesell <lesmikesell at gmail.com>: > On Wed, Dec 17, 2014 at 11:14 AM, Xinhuan Zheng > <xzheng at christianbook.com> wrote: >> I have a requirement that I need to use encryption technology to encrypt >> very large tar file on a daily basis. The tar file is over 250G size and >> those are data backup. Every night the server

Hi, A couple months ago, I migrated our local school (two servers, 20 desktop clients) from Slackware 14.1 to CentOS 7. The desktop clients are running a customized lightweight desktop based on Xfce: https://blog.microlinux.fr/poste-de-travail-xfce-centos-7/ Home directories are all on the server, and authentication is centralized. Everything works fine so far. With Slackware I had found a

Hi, I have a few identical Dell Optiplex 7010 machines that I want to use for our school's computer room. I tried to clone these installations (like I did before on CentOS 5 and various versions of Slackware), but this time I ran into a problem. Here's what I did. 1. Install one computer and zero unused hard disk sectors with dd. 2. Send the image to a local FTP server using G4L

Dear Experts, Could somebody point to kicstart HOWTO specific for CentOS 7? On CentOS 7 I somehow am always given human intervention questions about drive which defeats unattended ks install. <rant ??> I'm doing kickstart installations for quite some time, normally I was just installing system when new release comes, and am basing kickstart file on anaconda-ks.cfg - with some

This should be easy to answer (I hope).? We routinely kickstart boxes to use for managing our customers RADIUS/DHCP configurations (along with other things).? We've had a C7 kickstart in place since I built one in May and are finally starting to roll it out for new installations.? But, I'm curious as to what ksdevice= actually does. With the C6 we routinely used ksdevice=eth0 since we

On Thu, August 4, 2016 7:13 pm, Paul Heinlein wrote: > On Thu, 4 Aug 2016, Valeri Galtsev wrote: > >> Dear Experts, >> >> Could somebody point to kicstart HOWTO specific for CentOS 7? >> >> On CentOS 7 I somehow am always given human intervention questions >> about drive which defeats unattended ks install. >> >> At least one snag I hit

Fixes https://bugzilla.redhat.com/1256222

A mixed bag, but all the patches make sense together! Patch 1: Fix a bug that Tingting found: https://bugzilla.redhat.com/show_bug.cgi?id=1256222 Patch 2: Revert a patch that makes no sense now that we've added virt-v2v into base RHEL. This is just included because it's a cleanup needed before applying patch 3. Patch 3: Add the ability to use SSH identities (private keys) for virt-p2v

Hi All, I have a Quantum scalar i40 tape library. I need to configure it to TWO tape partition libraries, e.g., library_a and library_b, so that each library has its own tape drive. Then connect this physical tape library to two different CentOS servers so that each server can see its own media changer and tape drive. I once had a successful configuration on one host but NOT on the other. One

Dear All, I want to create a CentOS 7 VMWARE VM. I need to install various Runtime libraries, e.g., Tomcat, into the VM. Once all looks good, then I want to make a Custom Image of the entire VM. Later I want to load this Custom Image to a physical HW, so that I don?t need to go through all kinds Runtime installation. Does anyone know how to handle creating a Custom Image and Load to physical HW