Installing Flexlm License Server on Linux

June 11, 2015
Steve DiBartolomeo
Applications Manager



A couple of videos that can be very helpful


Introduction to the Flexlm License Manager

 

Installing Flexlm Server on Linux Part II


Step 1 - Getting the Machine's Hostid

One cannot simply use the Linux operating system's hostid command to obtain the hostid. You must use the utility called lmhostid that is provided as part of the flexlm utilities. Here is an example.

On my machine (ubuntu 2.6 kernel) I type:

$ hostid [enter]

a8c09100
using the lmhostid utility I type:
$ ./lmutil lmhostid [enter]

lmutil - Copyright (c) 1989-2006 Macrovision Europe Ltd.
The FLEXlm host ID of this machine is "1c6f6593b8d6"

Clearly these are two different values and if you request a license using the hostid a8c09100 your license server won't run using the license codes we send you.


Where can you get the lmhostid utility? Here:


Step 2 - Send an Email to Artwork Requesting your License Codes

This is a "sample" Please don't copy and paste this verbatim and email to us.

To:      support@artwork.com
From:    johnboy@ics_are_us.com
Subject: please send me floating license keys

Dear Support,

I need floating license codes for your Qckvu3 program. 
Here is my license server's (asmsc45) hostid: 1c6f6593b8d6

I got this using the lmhostid utility.

thanks,

John Boy
ICS_ARE_US
(941) 222-1234



Step 3 - Download the Flexlm Linux Software

You should get an email back from Artwork that includes the download link to the flexlm license server software as well as your license codes. Here is what it will look like (approximately):

To:      johnboy@ics_are_us.com
From:    support@artwork.com
Subject: flexlm download and license codes

Dear John,

Here is the download link to the Linux flexlm programs:


ftp://ftp.artwork.com/pub/get_from_here/flexlm/linux/flexlm_artwork_v11.13.1.2.linux64.tar.gz

FTP login: XXXXXX   FTP password: YYYYYYY



and here are your license codes for Qckvu3:



SERVER asmsc45 1c6f6593b8d6  ENTER_PORT
VENDOR artwork ENTER_PATH_TO_DAEMON

# QCKVU3 GDSII (FULL)
FEATURE ACS58IO artwork 1.0 20-oct-2020 1 SIGN="003F 66A8 66AA B956 \
1849 9979 63A2 E500 5BF0 0C77 5A5B D17A DB80 E740 6913"

# QCKVU3 OASIS (FULL)
FEATURE ACS583O artwork 1.0 20-oct-2020 1 SIGN="002C B06B C0CD F1AB \
0D8E 3785 8998 F900 4146 5059 088D 7D24 E127 9F7A 543E"



regards,

Steve DB
Artwork
831 426-6163


In this example I am going to create a directory called: /home/cad/flex and ftp directly from this directory to Artwork's ftp server and download the zipped version of the release. (Of course, if you have a web browser you can use that to connect to our ftp server, download the file and move it to the directory of your choice ...)

stevedb:/home/cad/flex$ ftp ftp.artwork.com
Connected to 207-111-203-98.got.net.
220 FTP server ready.
Name: acsGuest
331 Password required for acsGuest.
Password: *********
230 User acsGuest logged in.
Using binary mode to transfer files.
ftp> cd pub/get_from_here/flexlm/linux
250 CWD command successful.
ftp> passive
Passive mode on.
ftp> get flexlm_artwork_v11.13.1.2.linux64.tar.gz
150 Opening BINARY mode data connection for 'flexlm_artwork_v11.13.1.2.linux64.tar.gz' (1575188 bytes).
226 Transfer complete.
ftp> bye
221 Goodbye.

Now I've got the file I need in my /home/cad/flex directory where I plan to install the files.

stevedb:/home/cad/flex$ ls
flexlm_artwork_v11.13.1.2.linux64.tar.gz

Step 4 Installation

First, let's unpack the zip file:

stevedb:/home/cad/flex$ gunzip artwork_v11.13.1.2.linux64.tar.gz
stevedb:/home/cad/flex$ tar xf artwork_v11.13.1.2.linux64.tar

Archive:  flexlm.linux64.v113.zip
  inflating: artwork                 
  inflating: liseater                
  inflating: lmborrow                
  inflating: lmdiag                  
  inflating: lmdown                  
  inflating: lmgrd                   
  inflating: lmhostid                
  inflating: lminstall               
  inflating: lmpath                  
  inflating: lmremove                
  inflating: lmreread                
  inflating: lmstat                  
  inflating: lmswitch                
  inflating: lmswitchr               
  inflating: lmutil                  
  inflating: lmver                   

Now using the method of your choice (i.e. vi or gedit) let's create and edit our license file and customize it as needed. Two things have to be decided that affect the contents of the license file.

    What port will this license manager listen on?

    Where is the artwork daemon?

The choice of port is up to you (and your system administrator) I am going to select port 27005. And I know where the artwork daemon is located because I just copied it into /home/cad/flex directory. So let me create a file called license.dat and edit the codes I received from Artwork there.


stevedb:/home/cad/flex$ cat license.dat

SERVER asmsc45 1c6f6593b8d6  27005
VENDOR artwork /home/cad/flex/artwork

# QCKVU3 GDSII (FULL)
FEATURE ACS58IO artwork 1.0 20-oct-2020 1 SIGN="003F 66A8 66AA B956 \
1849 9979 63A2 E500 5BF0 0C77 5A5B D17A DB80 E740 6913"

# QCKVU3 OASIS (FULL)
FEATURE ACS583O artwork 1.0 20-oct-2020 1 SIGN="002C B06B C0CD F1AB \
0D8E 3785 8998 F900 4146 5059 088D 7D24 E127 9F7A 543E"

Edits

I added the port 27005 to the SERVER line

I added the path /home/cad/flex/artwork to the VENDOR line


Starting The License Manager

Now all we have to do is to start the license manager. This requires a couple of additional command line arguments:

    the name of the license file

    the name of the log file

Now let's start the license manager:


stevedb:/home/cad/flex$ /home/cad/flex/lmgrd 
                                  -c /home/cad/flex/license.dat 
                                              -log /home/cad/flex/lmgrd1.log

[there are no carriage returns, of course.]


You can check successful launching of the license manager by using the lmstat utility.

stevedb:/home/cad/flex$ ./lmstat -c license.dat -f


lmstat - Copyright (c) 1989-2006 Macrovision Europe Ltd.
Flexible License Manager status on Thu 6/11/2015 16:15

License server status: 27005@asmsc45
    License file(s) on asmsc45: /home/cad/flex/license.dat:
    asmsc45: license server UP (MASTER) v11.3

Vendor daemon status (on asmsc45):
    artwork: UP v11.3

Feature usage info:
    Users of ACS58IO:  (Total of 1 license issued;  Total of 0 licenses in use)
    Users of ACS583O:  (Total of 1 license issued;  Total of 0 licenses in use)


On the Client Side

The lmgrd license server will continue to run and listen on port 27005 for any license requests. Any client (i.e. the Qckvu3 software) can obtain a license as long as one is available for checkout. On each client machine you need an environment variable set which points to the license manager and port. In this example the environment variable is:

Variable Value
ARTWORK_LICENSE_FILE 27005@asmsc45


Restarting the License Manager on Reboot

Servers are rarely rebooted but if the license server is rebooted you want to be sure that the license server is restarted so that your clients can continue to check out licenses.

This can be best accomplished by adding a line to the OS's start up section. This may vary for different Linux flavors but typically the file to be edited is:

/etc/init.d/rc.local

While you can put in a fancy script for testing the existance of lmgrd and license.dat and then checking for an existing process already running, it is sufficient to just include simple command:

/home/cad/flex/lmgrd 
                     -c /home/cad/flex/license.dat 
                                                -log /home/cad/flex/lmgrd1.log

[there are no carriage returns, of course.]


Known Problems and Their Solution

We've run into these problems enough to note them here.


License server log reports can't open (or write to) /usr/tmp

It appears that lmgrd expects to be able to write a process file to /usr/tmp. We've seen some Linux installs that don't have a /usr/tmp directory.

    Solution

    Manually create a /usr/tmp directory (you probably need to be root to do this) and then change the permissions on it so that anyone can read/write/execute the directory.



License Server Won't Start at All

The license server log shows that the lmgrd did not start.

    Reason

    The hostid supplied by the user does not match the "true" hostid of the machine. This seems to happen because some users rely on the hostinfo command instead of usling the provided utility lmhostid.

    Solution

    Run the utility lmhostid and make sure that the value which is returned matches that used to generate the license codes.



License Server reports another instance is already running and Won't Start

    Reason

    The user already started the license server previously and did not stop it or stopped it in a way that left the lock file present.

    Solution

    First, check to see if a license server is running using the command: ps -ef | grep lmgrd. If you see an lmgrd and an artwork process running, stop them using the lmdown utility.

    If you don't see any lmgrd or artwork process running, then check for the presence of /usr/tmp/.flexid directory to see if there is a process file left (that should have been deleted when the lmgrd was stopped) and delete it. Also check for the existence of /var/tmp/artwork (this is a lock file) and delete it.



ARTWORK CONVERSION SOFTWARE, INC.                  Company Profile
417 Ingalls St.,     Santa Cruz, CA 95060         Tel (831) 426-6163     Fax 426-2824               email: info@artwork.com