I tried login on different NAS / AP with same username and password and system still allow it. That make me frustrated for couple day. When I saw on radius log file, it always display :

Error: [sql] Failed to check the terminal server for user ‘xxxxxxx’

I am googling about above error and still not get solution. They say just check ‘client.conf’

Yesterday, I am review my configuration, especially on client.conf. Here sample part of my client conf

client 192.168.x.x {
secret = xxxxxx
shortname = hs-d
nastype = Mikrotik
}

I think, the nastype caused the ” Failed to check the terminal server for user” then I comment the nastype

client 192.168.x.x {
secret = xxxxxx
shortname = hs-d
#nastype = Mikrotik
}

I restart the freeradius server, and try login on different NAS with same username, now it’s work the system now allow only single simultaneous user. I am happy with it

The file path is relative, depend where you mount the mikrotik drive, for example if you mount your mikrotik drive in /mnt/media, the mikrotik password file should be /mnt/media/mnt/nova/store/user.dat

In Ubuntu Live, if you can not copy the file, may be you need to become root, use this command below :

$sudo su

After become ‘root’ copy the ‘mikrotik password file’ in to USB flash drive, The USB flash drive should be ‘plug and play’ in Ubuntu Live.

After we got password file, we can decode it, downlod the the password decoder here. After extract the decoder file you can compile it using g++ compiler, or you can use my binary version. I compile it on debian linux, using g++ version 4.1, you may need issue chmod +x in tho this binary file. You can download here or you can visit http://manio.skyboo.net/mikrotik/ to get original version.

Here the some password decode process :

Sorry I make the password ‘blury’

Ok you got the password now, you can login into mikrotik pc router now