[Xymon] XymonPS upgrade source

Timothy Williams tlwilliams4 at vcu.edu
Wed Feb 6 17:54:13 CET 2019


In our main 'regular' server environment we have a web server that holds
the newest XymonPS client for successful self-upgrading on slow scan.
However, in our restrictive PCI environment, the Windows servers are not
permitted to access the outside web folder or even other servers in the
environment excepting WSUS, antivirus, etc on specific ports. They do send
and receive files on port 1984 to Xymon server.

2019-02-05 14:11:23  Main and optional tests finished.
2019-02-05 14:11:23  Sending to server
2019-02-05 14:11:23  Using UTF8 encoding
2019-02-05 14:11:23  Connecting to host 192.168.47.233
2019-02-05 14:11:23  Sent 69413 bytes to server
2019-02-05 14:11:23  Received 107 bytes from server

I have tried to use the bb: pseudo-URL to access the download folder on the
Xymon (3.28) Linux server. World Read permissions have been verified. From
the client logs, it appears to find the file and initiates a download, but
the new file has zero bytes. The upgrade process continues to restart the
service, but obviously hangs as there is now no script file. I have tried
both ASCII and UTF8 encoding.

2019-02-05 14:11:23  Found a command:
clientversion:2.35:bb://usr/local/xymon/server/download
..
2019-02-05 14:11:23  Executing XymonCheckUpdate
2019-02-05 14:11:24  Running version 2.28; config version 2.35; attempting
upgrade
2019-02-05 14:11:24  XymonDownloadFromServer - Downloading
usr/local/xymon/server/download/xymonclient_2.35.ps1 to
C:\Utils\xymonclient_2.35.ps1
2019-02-05 14:11:24  Using UTF8 encoding
2019-02-05 14:11:24  Connecting to host 192.168.47.233
2019-02-05 14:11:24  Sent 62 bytes to server
2019-02-05 14:11:24  Wrote 0 bytes from server to
C:\Utils\xymonclient_2.35.ps1
2019-02-05 14:11:24  Launching update
2019-02-05 14:11:24  Upgrading C:\Utils\xymonclient.ps1 to
C:\Utils\xymonclient_2.35.ps1
2019-02-05 14:11:24  Restarting service...

The error message on the XymonD process indicates that the file was not
found.

Latest error messages:
Download file usr/local/xymon/server/xymonclient_2.35.ps1 not found

Anybody have ideas about where the fault lies? Using file share or https is
beyond where InfoSec wants to go. We currently manually copy in new clients
to each PCI server, I'd like to have self-upgrading working.

Tim Williams
Virginia Commonwealth University Computer Center
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