Lentil

General Information

Lentil performs backups. Its backup script needs further investigation to determine exactly how it works.

Network Configuration

Hostnames: lentil.unh.edu, lentil.farm.physics.unh.edu

Currently connected to the unh and farm networks via the switch and VLAN.

ifconfig

eth0      Link encap:Ethernet  HWaddr 00:23:54:BC:70:F1  
          inet addr:10.0.0.250  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::223:54ff:febc:70f1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:30404 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1778 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3723593 (3.5 MiB)  TX bytes:227139 (221.8 KiB)
          Interrupt:66 Base address:0x6000 

eth0.2    Link encap:Ethernet  HWaddr 00:23:54:BC:70:F1  
          inet addr:132.177.88.254  Bcast:132.177.91.255  Mask:255.255.252.0
          inet6 addr: fe80::223:54ff:febc:70f1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:28826 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1032 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3068357 (2.9 MiB)  TX bytes:114723 (112.0 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:99 errors:0 dropped:0 overruns:0 frame:0
          TX packets:99 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:9335 (9.1 KiB)  TX bytes:9335 (9.1 KiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:10754 (10.5 KiB)

Access Configuration

 /etc/security/access.conf
 Any valid user can log into lentil from any machine on the Internet.

Backup Configuration

Location of Backups

/mnt/npg-daily/34/

All backup related scripts are:

 /etc/auto.npg-daily
 /usr/local/bin/rsync_backup.pl
 /etc/cron.daily/0rsync_backup
 /usr/sbin/vgcfgbackup
 /etc/rsync-backup.conf

/etc/rsync-backup.conf

# Backups are 'pull' only.  Too bad there isn't a better way to enforce this.
read only       = yes

# Oh for the ability to retain CAP_DAC_READ_SEARCH, and no other.  
#uid            = root
# XXX There seems to be an obscure bug with pam_ldap and rsync whereby 
# getpwnam(3) segfaults when (and only when) archiving /etc.  Using a numeric
# uid avoids this bug.  Only verified on Fedora Core 2.
uid             = 0

# There's not much point in putting the superuser in a chroot jail
# use chroot    = yes

# This isn't really an effective "lock" per se, since the value is per-module,
# but there really ought never be more than one, and it would at least 
# ensure serialized backups.
max connections = 1

[usr_local]
        path    = /usr/local
        comment = unpackaged software

[opt]
        path    = /opt
        comment = unpackaged software

[etc]
        path    = /etc
        comment = conf files

[var]
        path    = /var
        comment = user and system storage

SNMP Configuration

 /etc/snmp/snmpd.conf
 Copied from Pepper.

Smartd Configuration

The configuration file is at /etc/smartd.conf. The smartd.conf does a silent check, which only emails reports if the SMART health status comes back as failed. This smartd.conf will look different from alot of the other computers because it doesn't have a RAID card installed, so each disk is mounted seperately for backups.

rc.local Configuration

This script is modified to run commands when the system is done powering on.

/etc/rc.local

#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

#This will send the boot.log to npg-admins everytime the pc is started.
mail -s "$HOSTNAME Started, Here is the boot.log" npg-admins@physics.unh.edu < /var/log/boot.log

Hardware Information

 Motherboard: Asus P5QL-CM
   Specifications: Specifications
   User Manual: V2.pdf Users Manual
 Memory: 2 GB DDR2
 Wake On Lan Command: sudo ether-wake 00:1e:4f:9b:13:90

Fixes

• Kernel Crash Fix (2/24/2009)
  • Hardware Issues History