Hi, [root@smaster ~]# munge -n | unmunge STATUS: Success (0) ENCODE_HOST: smaster.calligotech.com (192.168.1.195) ENCODE_TIME: 2021-02-01 13:58:04 +0530 (1612168084) DECODE_TIME: 2021-02-01 13:58:04 +0530 (1612168084) TTL: 300 CIPHER: aes128 (4) MAC: sha1 (3) ZIP: none (0) UID: root (0) GID: root (0) LENGTH: 0
[root@smaster ~]# munge -n | ssh snode unmunge root@snode's password: STATUS: Success (0) ENCODE_HOST: smaster.calligotech.com (192.168.1.195) ENCODE_TIME: 2021-02-01 13:58:16 +0530 (1612168096) DECODE_TIME: 2021-02-01 13:58:21 +0530 (1612168101) TTL: 300 CIPHER: aes128 (4) MAC: sha1 (3) ZIP: none (0) UID: root (0) GID: root (0) LENGTH: 0 [root@smaster ~]# On Tue, Feb 2, 2021 at 6:00 PM Zainul Abiddin <zainul1...@gmail.com> wrote: > Hi All, > I am new to Slurm and trying to setup Slurm20.11.2 on Centos 7 > My environment is Master node (smaster) + compute Node (snode) > and i am using > https://www.slothparadise.com/how-to-install-slurm-on-centos-7-cluster/ > link to setup Slurm on Master and compute nodes. > > I have tried installing Munge on both the nodes and it's running fine. > However when i try to run the Munge command from Master to Node its asking > password. > > export MUNGEUSER=1001 > groupadd -g $MUNGEUSER munge > useradd -m -c "MUNGE Uid 'N' Gid Emporium" -d /var/lib/munge -u > $MUNGEUSER -g munge -s /sbin/nologin munge > export SlurmUSER=1002 > groupadd -g $SlurmUSER slurm > useradd -m -c "Slurm workload manager" -d /var/lib/slurm -u $SlurmUSER -g > slurm -s /bin/bash slurm > > yum install -y epel-release > yum install munge munge-libs munge-devel -y > > yum install rng-tools -y > rngd -r /dev/urandom > /usr/sbin/create-munge-key -r > dd if=/dev/urandom bs=1 count=1024 > /etc/munge/munge.key > chown munge: /etc/munge/munge.key > chmod 400 /etc/munge/munge.key > > scp /etc/munge/munge.key root@snode:/etc/munge > > chown munge: /etc/munge/munge.key > chmod 400 /etc/munge/munge.key > chown -R munge: /etc/munge/ /var/log/munge/ > chmod 0700 /etc/munge/ /var/log/munge/ > > systemctl enable munge > systemctl start munge > systemctl status munge > > [root@smaster ~]# systemctl status munge > ? munge.service - MUNGE authentication service > Loaded: loaded (/usr/lib/systemd/system/munge.service; enabled; vendor > preset: disabled) > Active: active (running) since Mon 2021-02-01 12:52:54 IST; 1h 4min ago > Docs: man:munged(8) > Process: 2547 ExecStart=/usr/sbin/munged (code=exited, status=0/SUCCESS) > Main PID: 2550 (munged) > Tasks: 4 > CGroup: /system.slice/munge.service > +-2550 /usr/sbin/munged > > Feb 01 12:52:54 smaster.calligotech.com systemd[1]: Starting MUNGE > authentication service... > Feb 01 12:52:54 smaster.calligotech.com systemd[1]: Started MUNGE > authentication service. > [root@smaster ~]# munge -n > > MUNGE:AwQDAAAg5PQzQhz/D4h7OGUU4Cx4QAgZ4z/0MMt0SP+uhuP927Xcl2t8EC4izsUj6xpMRslnIb2g4RCz2vayu0wW1o8mNNuy7cVv/PmsuO9XsAJ7aLl1n/M=: > [root@smaster ~]# > > Below is the screenshot for reference. > Smaster: > [image: image.png] > > Snode: > [image: image.png] > > Am I configuring properly or Do I need to set up passwordless > authentication on Master to Node and vice-versa? > > Please clarify to me, whether Mugne will do passwordless login else > do we need to setup passwordless. > > Please guide me with a proper setup link/Doc which includes Munge > Configuration, Slurm account database Daemon configuration and Slurm > installation and configuration with testing simple jobs on Master and > Compute Nodes. > > -- > *Regards* > *Zain* > > -- *Thanks and Regards* *Zainul Abiddin* *Mob: +91 7406649679*
