Re: [CentOS] Differences between CentOS 7.x and CentOS 8.x OS

2019-10-04 Thread David G. Miller
On 10/4/19 6:59 PM, Fred Smith wrote: On Fri, Oct 04, 2019 at 04:52:28PM -0600, David G. Miller wrote: On 10/3/19 1:37 PM, Ljubomir Ljubojevic wrote: On 10/3/19 5:49 PM, Kaushal Shriyan wrote: Hi, I will appreciate it if someone can help me understand the differences between CentOS 7.x and Ce

Re: [CentOS] Differences between CentOS 7.x and CentOS 8.x OS

2019-10-04 Thread Fred Smith
On Fri, Oct 04, 2019 at 04:52:28PM -0600, David G. Miller wrote: > On 10/3/19 1:37 PM, Ljubomir Ljubojevic wrote: > >On 10/3/19 5:49 PM, Kaushal Shriyan wrote: > >>Hi, > >> > >>I will appreciate it if someone can help me understand the differences > >>between CentOS 7.x and CentOS 8.x OS. I look fo

Re: [CentOS] Differences between CentOS 7.x and CentOS 8.x OS

2019-10-04 Thread David G. Miller
On 10/3/19 1:37 PM, Ljubomir Ljubojevic wrote: On 10/3/19 5:49 PM, Kaushal Shriyan wrote: Hi, I will appreciate it if someone can help me understand the differences between CentOS 7.x and CentOS 8.x OS. I look forward to hearing from you and thanks in advance. In short, CentOS 7.x is based on

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Japheth Cleaver
On 10/4/2019 8:17 AM, Lamar Owen wrote: On 10/4/19 10:40 AM, Valeri Galtsev wrote: My impression is younger generation doesn't value rules that programmers were following 2-3 decades ago. One of which is: Do not make any changes [in the program] unless they are absolutely necessary. I have

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Jonathan Billings
On Fri, Oct 04, 2019 at 08:27:08AM -0400, Phelps, Matthew wrote: > Also, we have 150+ machines with fixed IP addresses, always-on connections, > and no wireless. Having NetworkManager do seemingly random things is not > desirable. I mention this every time people bash NetworkManager on servers. I

Re: [CentOS] USB ISO for CentOS 8

2019-10-04 Thread Young, Gregory
Nope, that editable FAT partition is actually the EFI boot partition. IIRC, the grub config in that partition isn't actually used, only the EFI bootstrap files. Once it can access the config on the main .iso partition it loads everything from there. Gregory Young -Original Message- F

Re: [CentOS] USB ISO for CentOS 8

2019-10-04 Thread Jerry Geis
>Then generate the .iso: ># cd /tmp/rhel7/ ># mkisofs -o /tmp/rhel7test.iso -b isolinux/isolinux.bin -J -R -l -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e images/efiboot.img -no-emul->boot -graft-points -V "RHEL-7.7 Server.x86_64" . >^^^ Change the

Re: [CentOS] USB ISO for CentOS 8

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 5:30 PM, Jerry Geis wrote: > I did the dd of the ISO to a 16G USB device. > > the second partition is FAT so I can edit it - I want to make a custom menu > entry. > I edited the grub.cfg - but that did not work - my menu option does not > show. If you boot via UEFI, you need to edit di

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 5:55 PM, Lamar Owen wrote: > On 10/4/19 11:39 AM, Ljubomir Ljubojevic wrote: >> ... > I've kludged together a solution for those times here by using the NAT > connection, but then running an OpenVPN client on the guest to an > OpenVPN server with layer-2 adjacency to those sorts of devic

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Tristan Hoar
On Thu, 2019-10-03 at 15:14 -0400, Jerry Geis wrote: > > > systemctl status network > > AT BOOT: > ● network.service - LSB: Bring up/down networking >Loaded: loaded (/etc/rc.d/init.d/network; generated) >Active: inactive (dead) > Docs: man:systemd-sysv-generator(8) > > After: service

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Lamar Owen
On 10/4/19 11:39 AM, Ljubomir Ljubojevic wrote: ... I have VM in NAT mode mostly these days, but sometimes I need bridged network to recognize some hardware on the network, Mikrotik WiFi routers or printers so I need ability to go to bridge. I've kludged together a solution for those times her

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Valeri Galtsev
On 2019-10-04 10:27, Lamar Owen wrote: On 10/4/19 11:02 AM, Ljubomir Ljubojevic wrote: ... It is OK if your KVM host is on LAN cable that never is disconnected or power goes down. But I have a laptop I use first at work where I use LAN and then at home where I use WLAN only, and suspending l

Re: [CentOS] USB ISO for CentOS 8

2019-10-04 Thread Young, Gregory
You will want to follow the instructions for creating a custom .iso https://access.redhat.com/solutions/60959 ^^^ Requires a Red Hat account, or Red Hat Developer Account. The keys are to modify both: - /isolinux/isolinux.cfg - for legacy BIOS boot - /EFI/BOOT/grub.cfg - for UEFI boot Make sure

[CentOS] Mix/match C8 crypto policies

2019-10-04 Thread Paul Heinlein
Is it possible to mix and match crypto policies using approved tools in CentOS 8? Our environment requires a LEGACY setting for OpenSSL so we can maintain connections with our LDAP servers (which we cannot update at this time), but I'd like especially the OpenSSH settings to use the DEFAULT p

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 5:27 PM, Lamar Owen wrote: > On 10/4/19 11:02 AM, Ljubomir Ljubojevic wrote: >> ... >> It is OK if your KVM host is on LAN cable that never is disconnected >> or power goes down. But I have a laptop I use first at work where I >> use LAN and then at home where I use WLAN only, and suspen

[CentOS] moving from centos 8 to stream? (and possibly back again?)

2019-10-04 Thread Robert P. J. Day
just installed stock centos 8 x86_64 and did "dnf update", now reading up on centos stream, and wondering: 1) can i, at any time, decide to convert this system to centos stream, notwithstanding any normal updates i've done in the meantime? 2) if i'm running centos stream and decide it's just

[CentOS] USB ISO for CentOS 8

2019-10-04 Thread Jerry Geis
I did the dd of the ISO to a 16G USB device. the second partition is FAT so I can edit it - I want to make a custom menu entry. I edited the grub.cfg - but that did not work - my menu option does not show. Then I think I need to change BOOT.cfg and generate the grub.cfg - but I dont know in this

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Lamar Owen
On 10/4/19 11:02 AM, Ljubomir Ljubojevic wrote: ... It is OK if your KVM host is on LAN cable that never is disconnected or power goes down. But I have a laptop I use first at work where I use LAN and then at home where I use WLAN only, and suspending laptop is same as disconnecting LAN, bridg

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 4:59 PM, Stephen John Smoogen wrote: > On Fri, 4 Oct 2019 at 10:41, Valeri Galtsev wrote: >> >> >> >> On 2019-10-04 08:03, Chris Adams wrote: >>> Once upon a time, Ljubomir Ljubojevic said: Bridge for VM's is main reason I hate NM. >> >> +1 >> >> My impression is younger generatio

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Lamar Owen
On 10/4/19 10:40 AM, Valeri Galtsev wrote: My impression is younger generation doesn't value rules that programmers were following 2-3 decades ago. One of which is: Do not make any changes [in the program] unless they are absolutely necessary. I have in the past agreed with this assessment m

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 4:42 PM, Lamar Owen wrote: > On 10/4/19 10:00 AM, Ljubomir Ljubojevic wrote: >> On 10/4/19 3:03 PM, Chris Adams wrote: >>> ... >>> See the NetworkManager-config-server package. >> Ahh, thanks. I was wondering about it but never investigated. > H. > Description : > This adds a Ne

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Stephen John Smoogen
On Fri, 4 Oct 2019 at 10:41, Valeri Galtsev wrote: > > > > On 2019-10-04 08:03, Chris Adams wrote: > > Once upon a time, Ljubomir Ljubojevic said: > >> Bridge for VM's is main reason I hate NM. > > +1 > > My impression is younger generation doesn't value rules that programmers > were following 2-

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Lamar Owen
On 10/4/19 10:00 AM, Ljubomir Ljubojevic wrote: On 10/4/19 3:03 PM, Chris Adams wrote: ... See the NetworkManager-config-server package. Ahh, thanks. I was wondering about it but never investigated. H. Description : This adds a NetworkManager configuration file to make it behave more

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Valeri Galtsev
On 2019-10-04 08:03, Chris Adams wrote: Once upon a time, Ljubomir Ljubojevic said: Bridge for VM's is main reason I hate NM. +1 My impression is younger generation doesn't value rules that programmers were following 2-3 decades ago. One of which is: Do not make any changes [in the pro

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Lamar Owen
On 10/4/19 9:35 AM, Phelps, Matthew wrote: ... I'm still puzzled why RedHat is doing it then, and making it more generally available (to paying customers even), if it's so dire a proposition that it will fail so badly, so often. That seems counter-intuitive to me. It would likely boil down

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 3:03 PM, Chris Adams wrote: > Once upon a time, Ljubomir Ljubojevic said: >> Bridge for VM's is main reason I hate NM. I now mess with both NM and >> br0 controled by network because I use Windows VM on my laptop. As soon >> as you disconnect LAN cable your eth and bridge connection are

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Stephen John Smoogen
On Fri, 4 Oct 2019 at 09:36, Phelps, Matthew wrote: > > On Fri, Oct 4, 2019 at 9:24 AM Stephen John Smoogen > wrote: > > Thanks for the explanation(s). > > I'm still puzzled why RedHat is doing it then, and making it more generally > available (to paying customers even), if it's so dire a propos

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Kai Bojens
Am 04.10.19 um 15:35 schrieb Phelps, Matthew: > I'm still puzzled why RedHat is doing it then, and making it more generally > available (to paying customers even), if it's so dire a proposition that it > will fail so badly, so often. That seems counter-intuitive to me. I've been using kernel live

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Phelps, Matthew
On Fri, Oct 4, 2019 at 9:24 AM Stephen John Smoogen wrote: > On Fri, 4 Oct 2019 at 08:18, Phelps, Matthew > wrote: > > > > On Fri, Oct 4, 2019 at 6:33 AM Jim Perrin wrote: > > > > > > > > > > > On 10/3/19 9:35 PM, Stephen John Smoogen wrote: > > > > On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew

Re: [CentOS] CentOS 8 Broken Installation

2019-10-04 Thread Günther J . Niederwimmer
Hello, Am Mittwoch, 2. Oktober 2019, 22:22:09 CEST schrieb Ljubomir Ljubojevic: > I saw it uses Intel hdd controler so I thought it could be similar. > > Here is solution for instaling CentOS 8 on Dell T610 with SAS controler > (copied from Mike Chan): on this morning I tested this with a DUD CD

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Stephen John Smoogen
On Fri, 4 Oct 2019 at 08:18, Phelps, Matthew wrote: > > On Fri, Oct 4, 2019 at 6:33 AM Jim Perrin wrote: > > > > > > > On 10/3/19 9:35 PM, Stephen John Smoogen wrote: > > > On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew > > wrote: > > >> > > >> On Thu, Oct 3, 2019 at 1:42 PM Jim Perrin wrote: > >

Re: [CentOS] CentOS8 and crypto-policies

2019-10-04 Thread Stephen John Smoogen
On Fri, 4 Oct 2019 at 03:49, Todor Petkov wrote: > > Hi, > > I started playing with CentOS8 and I am trying to set default crypto > policies for openssh server/client. In CentOS7 I followed the guide > from https://infosec.mozilla.org/guidelines/openssh.html and set > KexAlgorithms /Ciphers/MACs i

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Chris Adams
Once upon a time, Ljubomir Ljubojevic said: > Bridge for VM's is main reason I hate NM. I now mess with both NM and > br0 controled by network because I use Windows VM on my laptop. As soon > as you disconnect LAN cable your eth and bridge connection are gone and > stupid KVM can not recover and r

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 2:27 PM, Phelps, Matthew wrote: > On Fri, Oct 4, 2019 at 6:26 AM Jim Perrin wrote: > >> >> >> On 10/3/19 2:42 PM, Jerry Geis wrote: >>> I have need to use the old network-scripts and not NetworkManager. >> >> Why? I'd like to understand more about the use case where this is a >> requir

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Ljubomir Ljubojevic
On 10/4/19 2:08 PM, Mike Litoris via CentOS wrote: > On 10/4/19 12:27 PM, Jim Perrin wrote:> Why? I'd like to understand more > about the use case where this is a requirement.I'd say for the sake of > simplicity...Why complicate things with NM when you only need to set an IP > ?The ifconfig file

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Phelps, Matthew
On Fri, Oct 4, 2019 at 6:26 AM Jim Perrin wrote: > > > On 10/3/19 2:42 PM, Jerry Geis wrote: > > I have need to use the old network-scripts and not NetworkManager. > > Why? I'd like to understand more about the use case where this is a > requirement. > > > One example we have is qemu virtual mach

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Phelps, Matthew
On Fri, Oct 4, 2019 at 6:33 AM Jim Perrin wrote: > > > On 10/3/19 9:35 PM, Stephen John Smoogen wrote: > > On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew > wrote: > >> > >> On Thu, Oct 3, 2019 at 1:42 PM Jim Perrin wrote: > >> > >>> > >>> > >>> On 10/3/19 1:32 PM, Phelps, Matthew wrote: > Fo

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Mike Litoris via CentOS
On 10/4/19 12:27 PM, Jim Perrin wrote:> Why? I'd like to understand more about the use case where this is a requirement.I'd say for the sake of simplicity...Why complicate things with NM when you only need to set an IP ?The ifconfig files were great.Why is the choice, to use or not to use NM, no

Re: [CentOS] Compiling latest postfix fails on C8

2019-10-04 Thread Adrian van Bloois
Problem solved by installing libnsl2-devel, thanks guys. Any idea where I could fin clamav?? On Wed, Oct 02, 2019 at 02:33:34PM +0200, Adrian van Bloois wrote: > Hi, > I tried to compile the latest version of postfix, runs fine on C6 and C7, > on C8 it fails. > Complaining about missing ypclnt.h, t

Re: [CentOS] kpatch (live kernel patching) in CentOS 7.7?

2019-10-04 Thread Jim Perrin
On 10/3/19 9:35 PM, Stephen John Smoogen wrote: On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew wrote: On Thu, Oct 3, 2019 at 1:42 PM Jim Perrin wrote: On 10/3/19 1:32 PM, Phelps, Matthew wrote: Forgive me if this has been answered before and I've missed it. This https://access.redhat.c

Re: [CentOS] CentOS 8 network-scripts

2019-10-04 Thread Jim Perrin
On 10/3/19 2:42 PM, Jerry Geis wrote: I have need to use the old network-scripts and not NetworkManager. Why? I'd like to understand more about the use case where this is a requirement. -- Jim Perrin The CentOS Project | http://www.centos.org twitter: @BitIntegrity | GPG Key: FA09AD77 __

[CentOS] CentOS-8 QEMU guest won't bring virtio_net interface up.

2019-10-04 Thread LAHAYE Olivier
Hi, I’m trying to PXE boot from qemu a CentOS-8 initrd, but despite I set rd.neednet=1, the virtio_net module is not loaded and the interface is not brought up. If I modprobe it by hand, it brings an eth0 interface. My initrd was created using dracut that includes network, qemu and qemu-net mo

[CentOS] CentOS8 and crypto-policies

2019-10-04 Thread Todor Petkov
Hi, I started playing with CentOS8 and I am trying to set default crypto policies for openssh server/client. In CentOS7 I followed the guide from https://infosec.mozilla.org/guidelines/openssh.html and set KexAlgorithms /Ciphers/MACs in sshd_config. In CentOS8 I can edit /usr/share/crypto-policie