similar to: CentOS7/Cups/Ldap

Hi, I have a strange problem with a freshly installed Centos7 desktop (most8pc25). I can't ssh to 2 CentOS6 servers, even with firewall disabled on the client and on the server. But I can connect from the server to the client, all in the same VLAN. I can also ssh from this desktop to centos7 servers in the same VLAN or in another VLAN. No idea about this problem. On the server kareline

helow my goal is to install via kickstart a CentOS 7 NFS server but I fail to set the firewall rules at installation time. In my kickstart file I set: # Firewall configuration # ssh and NFS # Ports 111 and 875 are for rquotad firewall --enabled --ssh --service=nfs --port=111:tcp,111:upd,875:tcp,875:upd On the installed server,? /root/anaconda-ks.cfg contains: # Firewall configuration firewall

Hi, I'm facing a problem with setting up LDAP+TLS client authentication in a kickstart script on CentOS7 for several days. Setting up manualy the config with system-config-authentication works but I need to automate this in kickstart for deploying cluster nodes. This show that the server side is running fine. At this time the message is #systemctl status sssd |....

The number of threads has nothing to do with the number of cores on the machine. It depends on the I/O, network speed, type of workload etc. We usually start with 32 threads and increase if necessary. You can check the statistics with: watch 'cat /proc/net/rpc/nfsd | grep th? Or you can check on the client nfsstat -rc Client rpc stats: calls retrans authrefrsh 1326777974 0

Le 13/05/2020 ? 07:32, Simon Matter via CentOS a ?crit?: >> Le 12/05/2020 ? 16:10, James Pearson a ?crit?: >>> Patrick B?gou wrote: >>>> Hi, >>>> >>>> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >>>> (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >>>> 8TB HDD) used by two

Hi Barbara, Thanks for all these suggestions. Yes, jumbo frames are activated and I have only two 10Gb ethernet switch between the server and the client, connected with a monomode fiber. I saw yesterday that the client showing the problem had not the right MTU (1500 instead of 9000). I don't know why. I changed the MTU to 9000 yesterday and I'm looking at the logs now to see if the

On Mon, 13 Jan 2020 at 12:23, Patrick B?gou <Patrick.Begou at legi.grenoble-inp.fr> wrote: > > Hi, > > I have a strange problem with a freshly installed Centos7 desktop > (most8pc25). I can't ssh to 2 CentOS6 servers, even with firewall > disabled on the client and on the server. But I can connect from the > server to the client, all in the same VLAN. I can also ssh

On Mon, Jan 13, 2020 at 01:00:05PM -0500, Stephen John Smoogen wrote: > On Mon, 13 Jan 2020 at 12:23, Patrick B?gou > <Patrick.Begou at legi.grenoble-inp.fr> wrote: > > > > Hi, > > > > I have a strange problem with a freshly installed Centos7 desktop > > (most8pc25). I can't ssh to 2 CentOS6 servers, even with firewall > > disabled on the client

Hi, I need some help with NFSv4 setup/tuning. I have a dedicated nfs server (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x 8TB HDD) used by two servers and a small cluster (400 cores). All the servers are running CentOS 7, the cluster is running CentOS6. Time to time on the server I get: ?kernel: NFSD: client xxx.xxx.xxx.xxx testing state ID with incorrect

Hi I have a fresh install of centos 7.4 with KDE on a laptop (latitude 5590) connected to a DELL WD15 dockstation with an additionnal screen. It works quite well, I have 2 screens side by side (default config), but.... If I add a second menu bar for the screen connected to the dockstation (KDE allow for this) it is not possible anymore to start a kde session if the laptop is not connected to

Le 12/05/2020 ? 16:10, James Pearson a ?crit?: > Patrick B?gou wrote: >> >> Hi, >> >> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >> (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >> 8TB HDD) used by two servers and a small cluster (400 cores). All the >> servers are running CentOS 7, the cluster is

Hi Orion, no, I still have this problem. I delay working on it as I the latest updates have not been installed on the server and on the client. I'll work again on this problem as soon as possible. Thanks Charles for your detailed information on how to track this problem. I'll check all these metrics. I have several clients for this nfs server and the problem seems only to occur from the

Le 13/05/2020 ? 02:13, Orion Poplawski a ?crit?: > On 5/12/20 2:46 AM, Patrick B?gou wrote: >> Hi, >> >> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >> (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >> 8TB HDD) used by two servers and a small cluster (400 cores). All the >> servers are running CentOS 7, the

I'm very confused on the right step to use to setup a modified kernel in centOS6. As a simple user, I've downloaded the latests sources (I'm runing an old kernel version) : rpm -i http://vault.centos.org/6.7/updates/Source/SPackages/kernel-2.6.32-573.22.1.el6.src.rpm in the spec file ~/rpmbuild/SPECS/kernel.spec I've set: %define buildid .numa Now I want to set

Patrick B?gou wrote: > > Hi, > > I need some help with NFSv4 setup/tuning. I have a dedicated nfs server > (2 x E5-2620 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x > 8TB HDD) used by two servers and a small cluster (400 cores). All the > servers are running CentOS 7, the cluster is running CentOS6. > > Time to time on the server I get: > >

> Le 12/05/2020 ? 16:10, James Pearson a ?crit?: >> Patrick B?gou wrote: >>> >>> Hi, >>> >>> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >>> (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >>> 8TB HDD) used by two servers and a small cluster (400 cores). All the >>> servers

On 5/12/20 2:46 AM, Patrick B?gou wrote: > Hi, > > I need some help with NFSv4 setup/tuning. I have a dedicated nfs server > (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x > 8TB HDD) used by two servers and a small cluster (400 cores). All the > servers are running CentOS 7, the cluster is running CentOS6. > > Time to time on the server I get:

On 6/1/20 3:08 AM, Patrick B?gou wrote: > Le 13/05/2020 ? 02:13, Orion Poplawski a ?crit?: >> On 5/12/20 2:46 AM, Patrick B?gou wrote: >>> Hi, >>> >>> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >>> (2 x E5-2620? 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >>> 8TB HDD) used by two servers and a small

Le 13/05/2020 ? 15:36, Patrick B?gou a ?crit?: > Le 13/05/2020 ? 07:32, Simon Matter via CentOS a ?crit?: >>> Le 12/05/2020 ? 16:10, James Pearson a ?crit?: >>>> Patrick B?gou wrote: >>>>> Hi, >>>>> >>>>> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >>>>> (2 x E5-2620? 8cores/16 threads

Akemi Yagi wrote: > On Fri, Mar 25, 2016 at 9:57 AM, Patrick Begou < > Patrick.Begou at legi.grenoble-inp.fr> wrote: > >> I'm very confused on the right step to use to setup a modified kernel in >> centOS6. >> >> As a simple user, I've downloaded the latests sources (I'm runing an old >> kernel version) : >> >> rpm -i >>