SiteMinder : Policy Server and AdminUI Linux softlink permanently for : /dev/random

Products

• SITEMINDER

Issue/Introduction

Description:

The symbolic link between /dev/random and /dev/urandom as suggested by the product documentation and this soft link is available until the next machine reboot.

 

 

Environment

Policy Server and AdminUI on RHEL.

Cause

How could I get this link always set, even if the in case of the patch management needs OS reboot.

This problem is annoying because when I do not have the link set, I get error messages as :

"Error: username and password do not match"

when accessing the AdminUI and the Policy Server is very slow at startup.

Resolution

This has to be configuring the UDEV service on the Linux machine for setting the permanent solftlink.

The UDEV service is responsible to create the /dev repository at boot time.

Here is a sample of the configuration of UDEV :

70-disable-random-entropy-estimation.rules

# /etc/udev/rules.d/70-disable-random-entropy-estimation.rules
# Disables /dev/random entropy estimation (it's mostly snake oil anyway).
#
# udevd will warn that the kernel-provided name 'random' and NAME= 'eerandom'
# disagree.  You can ignore this warning.
# Use /dev/eerandom instead of /dev/random for the entropy-estimating RNG.
KERNEL=="random", NAME="eerandom"
# Remove any existing /dev/random, then create symlink /dev/random pointing to
# /dev/urandom
KERNEL=="urandom", PROGRAM+="/bin/rm -f /dev/random", SYMLINK+="random"

Referance URL :-  https://superuser.com/questions/309840/how-can-i-point-dev-random-to-dev-urandom

You will get more information on the UDEV service from:

# man udev