Tool

Host Information at Login

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1 August 2008 - 7:27am
Submitted by: jrecord

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license: 
GPLv2
download url: 
http://download.opensuse.org/repositories/Novell:/NTS/SLE_10/noarch/hostinfo-0.55-2.1.noarch.rpm

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The hostinfo command creates a quick summary of the server at login time. It is especially useful in environments with a lot of servers at different OS levels. The summary looks like this:

--[ hostinfo v0.55-2 ]------------------------------------
Hostname:            jrecord4
Current As Of:       08/01/08 09:35:56
Distribution:        SUSE Linux Enterprise Server 10
Service Pack:        1
Kernel Version:      2.6.16.46-0.12-default
Architecture:        i386
IPv4 Address:        137.65.55.73    eth0    (static)
IPv4 Address:        192.168.20.20   eth1    (static)
Total/Free Memory:   504/8 MB
Hard Disk:           /dev/sda 8 GB
Hard Disk:           /dev/sdb 8 GB
Hard Disk:           /dev/sdc 3 GB
User Logged In:      uid=0(root) gid=0(root) on pts0

Owner:               Jason Record
Function:            Test Server
-----------------------------------------------------------

You can also create an html page with the same information, by running hostinfo -w > info.html.

Installation Instructions

  1. Remove the previous package

    2. rpm -e hostinfo

  2. Download the current hostinfo RPM package
  3. Install the hostinfo RPM package

    4. rpm -ivh hostinfo-0.55-2.noarch.rpm

  4. Use the "hi" alias to see the current information
  5. You can add a "Function" line by creating a single line file called /opt/hostinfo-function.txt
  6. You can add an "Owner" line with /opt/hostinfo-owner.txt

Version 0.55-2

  • Added the tty for login
  • Added the -i switch for hostinfo to replace the /etc/issue file
  • Added free memory
  • Added -f to include free disk space. However this only works if the df output includes the same devices as the /proc/partitions.

Version 0.51-8

  • Added hostinfo(5)
  • Includes all ethernet addresses found
  • Added -t and -T sec switches for a timer. The default is 30 seconds with -t.
  • Added -f to include free disk space, but this only works for mounted partitions found in /proc/partitions.
  • Free memory is not reported along with total memory.

Version 0.30-5

  • Added cciss support
  • Added a <title> tag to the -w output
  • If the network is not configured, an error displayed. The error no longer displays.

Author Info

1 August 2008 - 7:27am
Submitted by: jrecord

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Slanted towards SLES as root?

Submitted by AndyDeck on 22 January 2008 - 1:46pm.

The app as written appears slanted towards running on SLES as root:for example, the Service Pack entry is blank on OpenSuSE 10.1, and the Hard Disk info from fdisk cannot be filled in by a regular user. There's also a conflict with NoMachine's NX software, apparently - I get errors from NX when hostinfo is set to run in /etc/profile.local that go away when hostinfo is removed.

mfaris01's picture

Slanted towards SLES as root?

Submitted by mfaris01 on 22 January 2008 - 3:02pm.

If you look in the example jrecord submitted, you'll see that the user is root. His note of a redirect to an HTML page could be run in a script with sudo and the "regular" users could still get the data.

Slanted towards SLES as root?

Submitted by jrecord on 25 January 2008 - 9:16am.

Yes, it is slanted a bit toward SLES and root. The disk information comes from the fdisk command, which is root only. The service pack is correct on OpenSuSE 10.1, because it does not have a service pack. OpenSuSE 10.3 for example is a different product without any service packs. I am considering a way to get the disk information as a non root user though. Using /proc/partitions for example. Thanks for the feedback!

-jason

Did you find a fix for

Submitted by Anonymous on 12 December 2008 - 9:29pm.

Did you find a fix for this?
Thanks in advance

-Dan Saltman

df -h

Submitted by peterhine on 28 January 2008 - 1:13am.

You could use 'df -h'. it is available to everyone.
eg:
admin@server:~> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 97G 17G 80G 18% /
tmpfs 2.0G 56K 2.0G 1% /dev/shm
/dev/sda1 99M 11M 84M 12% /boot
/dev/evms/DATA 450G 264G 186G 59% /opt/novell/nss/mnt/.pools/DATA
admin 4.0M 0 4.0M 0% /_admin
DATA 118G 87G 31G 75% /media/nss/DATA
SOFTWARE 157G 125G 32G 80% /media/nss/SOFTWARE
MASTER 98G 51G 48G 52% /media/nss/MASTER

df -h

Submitted by jrecord on 28 January 2008 - 11:15am.

Yes it would work. Currently I only pick one disk, and the first disk the OS detects. Really I need to determine what the "Hard Disk" label is going to mean. The intent is to show the size of disk in the server available for use. However, I currently only show the first disk detected by fdisk. What I probably need to do is enhance the script to show all disks and their sizes. If I use /proc/partitions in association with df output, I could probably get what I want. I could also get the information from /proc/parititons, once I figure out how to calculate the number given in the output. I just haven't taken the time yet.

-jason

using /proc/partitions

Submitted by AndyDeck on 19 February 2008 - 9:43am.

This was nagging at me too, so I figured out a method that comes pretty close to producing identical output for non-root users (un-wrap the lines at the "\"):

DISK_SIZE="$(fdisk -l 2>/dev/null 
\ | grep ^Disk | egrep 'sda|hda|xvda' 
\ | head -1 |  awk '{print $2, $3, $4}' | cut -d',' -f1)"
if [ -z $DISK_SIZE]; then
  DISK_SIZE="$(egrep 'sda|hda|xvda' /proc/partitions 
\ | head -1 |  awk '{print $3 *1024/(1000*1000*1000)}')"
  DISK_SIZE="$(egrep 'sda|hda|xvda' /proc/partitions 
\ | head -1 |  awk '{print "/dev/"$4":"}') $DISK_SIZE GB"
fi

Then, replace the print statement with this to use the new calculated values:

printf "$ROW_OUT" "Hard Disk:" "$DISK_SIZE"

Thanks for the Feedback

Submitted by jrecord on 26 February 2008 - 11:15am.

Thanks everyone for the feedback. The updated version should work out for everyone. Please let me know if you have anymore ideas for it.

partitions at a hp server

Submitted by keutterling on 7 March 2008 - 5:22pm.

Could you change the partions matching regexp to:
'[s,h,xv,c][0-9]?d[a-z,0-9]$'

# cat /proc/partitions
major minor #blocks name

104 0 35561280 cciss/c0d0
104 1 1052226 cciss/c0d0p1
104 2 34507620 cciss/c0d0p2
7 0 4460422 loop0

thx :)

partitions on hp server

Submitted by jrecord on 10 March 2008 - 3:06pm.

Great idea, I've added it to the next release.

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