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Nodes with Custom/One-Off Configurations

Updated on Thu, 2015-09-10 14:51 by wbetts. Originally created by mpoat on 2015-01-13 14:23. Under:

This is page designed to help maintain and monitor configurations that are for custom or one-off configurations.
For example,
- Custom packages installed on one or a few machines.
- Special configuration file for one particular node.
- Particular hardware/software glitch on one or more particular machines.
 

IP Address: Hostname: Operating System: Responsible person: Custom Configuration:
130.199.60.194 onl16.starp.bnl.gov Scientific Linux 6   Network Manager turned off for interface eth1
130.199.60.64 fps.starp.bnl.gov Scientific Linux 6   Firefox 33 installed using instructions  from this link
http://tecadmin.net/install-firefox-on-linux/
downloaded from: wget http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/34.0/linux-x86_64/en-US/firefox-34.0.tar.bz2
 
 130.199.60.78  sc5.starp.bnl.gov  Scientific Linux 5    SSHD PasswordAuthentication has been set to 'yes'
This is a termporary configuration. Added 1/14/15
 
130.199.60.91 130.199.162.181
[one machine, two NICs configured]
 		 dashboard1.starp.bnl.gov
dashboard1.star.bnl.gov		  RHEL 6 W. Betts February 2015:

routing changes for the dual NIC configuration:
added to /etc/iproute2/rt_tables:

241 starp
242 star
 
added to /etc/rc.local:
P1_NET=130.199.60.0/23
IF1=em1
IP1=130.199.60.91
P1=130.199.60.24
P2_NET=130.199.162.128/25
IF2=em2
IP2=130.199.162.181
P2=130.199.162.152
T1=starp
T2=star

/sbin/ip route add $P1_NET dev $IF1 src $IP1 table $T1
/sbin/ip route add default via $P1 table $T1
/sbin/ip route add $P2_NET dev $IF2 src $IP2 table $T2
/sbin/ip route add default via $P2 table $T2
/sbin/ip route add $P1_NET dev $IF1 src $IP1
/sbin/ip route add $P2_NET dev $IF2 src $IP2
/sbin/ip route add default via $P2
/sbin/ip rule add from $IP1 table $T1
/sbin/ip rule add from $IP2 table $T2
/sbin/ip route flush cache
 
130.199.60.44 trgscratch.starp.bnl.gov Sc. Linux 6 W. Betts Feb. 23, 2015:  In /etc/sysconfig/raid-check:

MAXCONCURRENT=1

(default is "MAXCONCURRENT=", which means unlimited concurrent checks)

This is an attempt to stabilise the disks connected to this machine and eliminate the load imposed by checking up to 6 RAID arrays simultaneously (with possibly more to come in the future). 
various {onl01,...,onl29}.starp.bnl.gov Sc. Linux 6 W. Betts The rpc.gssd service has been turned off, and the "rpcsec_gss_krb5" kernel module has been blacklisted:

# cat /etc/modprobe.d/blacklist-nfs-gss-krb5.conf
blacklist rpcsec_gss_krb5
This removes a 15 second delay in NFSv4 mount requests.
(See for instance:
https://bugzilla.redhat.com/show_bug.cgi?id=1001934
the patch for which has not been backported to the RHEL/SL 6 nfs-utils package as of Sept. 10, 2015)
 

 

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