How do I set the IP address on my Digi PortServer server?

NOTE: these steps must be performed on the same LAN as the device.

  • Record the MAC address of the Digi device (located on the label side (bottom) of the unit)
  • Manually update the workstation’s ARP table using the Digi deviceā€™s MAC using one of the commands below, substituting the new Digi’s IP address and MAC address:
arp -s 192.168.2.2 00-00-9d-22-23-60
arp -s 192.168.2.2 00009d222360
  • Ping the Digi device using the IP address just assigned:
ping 192.168.2.2
  • When the Digi begins responding to pings, enter the IP into a web browser and login (user/pass root/dbps) to set the default gateway and subnet mask
  • Add to the digi device IP address to the /etc/hosts file
    vi /etc/hosts
    192.168.2.2 digi
    
    
  • Notify Eclipse that the Digi is online by updating your service request online with the Digi IP address
  • Eclipse will verify connectivity to the Dig and continue the VSIFAX configuration process

JDK TLS handshake error

The Eclipse PD team has identified JBoss running on RHEL 5.x with Java 7u131 may crash when the Solar Eclpse SSL interface (i.e Connection Pool, Session manager and etc..) is accessed from a browser.

This is an Oracle bug, and it is expected to be fixed with java 7u141 release.

The Work-around is to not use java 7u131. Do not install java update or downgrade to an older version if java 7u131 has already been installed.

To downgrade java to older version, 7u95:

yum downgrade java-1.7.0-openjdk-1.7.0.121-2.6.8.1.el5_11

To exclude java updates when manually installing the RHEL updates:

yum update --exclude=java-1.7.0-openjdk-1.7.0.131*

If your system is setup with RHEL automatic update you may temporarily disable it and run manual updates until a fix is available.

To disable RHEL auto update:

chkconfig yum-updatesd off
service yum-updatesd stop

Reference

How do I perform a manual rsync backup on Linux?

If your system is configured to perform an rsync backup as part of the standard snapshot script, simply run the following command:

at now -f /u2/UTILS/bin/snapsave_linux.sh

To schedule the backup at specific date and time, for example at 11PM today, change now to 23:00.

at 23:00 -f /u2/UTILS/bin/snapsave_linux.sh

This script will suspend your database, take snapshots of the database files and create a full tape backup. You will not see any output in your console session, because the script creates a separate log file under /tmp/snapsave.log.

If you have already created the snapshot filesystem, but you want to perform a separate manual tape backup:

 rsync  -avz --delete --stats /snap/u2/   /mnt/nas/rsync/

If there are no snapshots present, but no users are on the system and you want to perform a manual rsync backup:

 rsync  -avz --delete --stats /u2/   /mnt/nas/rsync/

References:
How to use the at command
How to use rsync

Format RDX Cartridges for Linux

To format an RDX (e.g. Dell RD1000) drive cartridge for Linux for use with Eclipse backups:

Identify the drive’s device name (e.g. /dev/sdc) using the following command:

lsscsi

After you’ve identified the proper device, format the partition (e.g. /dev/sdc1):

CAUTION: This will destroy all data on the specified partition, so make sure you’ve identified the correct partition beforeĀ proceeding.

mkfs -t ext3 -v -L RD1000 /dev/sdX1

Mount the drive:

mount /mnt/rd1000

Create the rsync directory:

mkdir -p /mnt/rd1000/rsync

The drive cartridge is now ready for use.

How do I check for duplicate IP addresses in Linux?

Linux doesn’t do an active monitoring or reporting of duplicate ip, after the interface is initialized. To check for duplicate IP addresses in Linux:

Log into your server via console and from the command line run

arping -D -q -I eth0 -c 2 192.168.1.250 ; echo $?

If the above commands return 0, then no one responded to your arp request and therefore no one else is using your IP address.

References:
https://access.redhat.com/solutions/35057
http://www.cyberciti.biz/faq/linux-duplicate-address-detection-with-arping/