For instance, in the following crontab file there is a blank line between the last two cron jobs.

root@sunsolaris# crontab -l
# The root crontab should be used to perform accounting data collection.
#
# The rtc command is run to adjust the real time clock if and when
# daylight savings time changes.
#
10 1 * * 0,4 /etc/cron.d/logchecker
10 2 * * 0  /usr/lib/newsyslog
15 3 * * 0 /usr/lib/fs/nfs/nfsfind

30 4 * * * /usr/local/bin/disk_check,sh
;;;;
;;;
;;
;

To resolve the problem edit the crontab file and look for the blank line and delete the line. In the above, after editing the crontab, it should look lie the follows:

root@sunsolaris# crontab -l
# The root crontab should be used to perform accounting data collection.
#
# The rtc command is run to adjust the real time clock if and when
# daylight savings time changes.
#
10 1 * * 0,4 /etc/cron.d/logchecker
10 2 * * 0  /usr/lib/newsyslog
15 3 * * 0 /usr/lib/fs/nfs/nfsfind
30 4 * * * /usr/local/bin/disk_check,sh
;;;
;;
;

You can see the  blank line removed from the crontab file.

Following procedure should help you mount an ISO image in Sun Solaris

Attach a Block Device

sunsolaris# lofiadm -a /export/software/iso_image.iso
/dev/lofi/1

Mount the ISO Image block device

sunsolaris# mount -F hsfs -o ro /dev/lofi/1 /mnt

Where /mnt is the mount point.

This should mount the ISO image.

To confirm, change directory to /mnt and do a “ls” to lis the files

sunsolaris# cd /mnt

sunsolaris# ls

if at anytime, you want to look at these block devices simply type “lofiadm” command with no arguement.

sunsolaris# lofiadm
Block Device File
/dev/lofi/1 /export/software/iso_image.iso

When we are done with the files on the mounted ISO, we can unmount and detach the Block device we attached earlier:

sunsolaris# umount /mnt

sunsolaris# lofiadm -d /dev/lofi/1

For instructions on how to mount an ISO image in Linux, click here

I loved the authors Nipper security audit tool for network devices. It was one of the greatest utilities I have ever come across and this is no ordinary as well.

Sun Patch Utility can make life for Admin much easier and can be included in scripts to run in a big Sun Server farm to help stay on top of the recommended patch status.

To install, you need to have GNU C Compiler installed on the server. For more information on installing GNU C Compiler on your Sun Server click here. While if you choose to run on a Linux system most if not all should by default have the GNU C compiler installed.

Once GNU C Compiler is installed.

Download the source

solaris10# wget

http://www.titania.co.uk/downloads/sunpatchcheck-1.6.tgz

Unzip & untar the downloaded file

solaris10# gzip sunpatchcheck-1.6.tgz

solaris10# tar -xvf sunpatchcheck-1.6.tar

Change Directory to sunpatchcheck-1.6

solaris10# cd sunpatchcheck-1.6

Run the compiler

solaris10 ~/sunpatchcheck-1.6# gcc -o sunpatchcheck sunpatchcheck.c

That should install the utility.

Update Database

Sun Patch Check maintains individual database for the latest recommended patches for each of the Sun Solaris versions (SPARC/Intel)

solaris10 ~/sunpatchcheck-1.6# ./sunpatchcheck –update

Run showrev

Run a showrev -p on your Sun Server and pipe it to a text file

solaris10 ~/sunpatchcheck-1.6# showrev -p > showrev_intel10.txt

Now compare the results

solaris10 ~/sunpatchcheck-1.6# ./sunpatchcheck –check=showrev_intel10.txt –solaris=10i

where

–check instructs to check the file mentioned

–solaris denotes the version of Sun Solaris against which this showrev is run. This can 10,9,8,7,2.6,2.5.1 (where applicable if the platform is intel, use an “i” like 10i)

This should compare and give you the results.

For more options,

solaris10 ~/sunpatchcheck-1.6# ./sunpatchcheck –help