Node-Locked Licenses
The node-locked license scheme is based on a file license.dat which should be in the directory given in the TeraChem environment variable. This file is obtained by sending the MAC addresses of the machines which are to be licensed to help@petachem.com. PetaChem will create an appropriate license file and send this back to you. Save the file as license.dat in the TeraChem directory and all restrictions should be removed.
License files are typically created with a time limit of two years. This enables us to replace the license file if needed (for example if a machine is upgraded). If the license file expires, please send the old license file to help@petachem.com along with purchaser information and we will provide you with an updated license file.
For reference, here is an example license.dat file (this file is not valid – it is for demonstration purposes only):
# License created: 21-09-2014
# MAC: 60A44C5FC377
# Expires on DD-MM-YYYY: 10-09-2016
# Licensed application:
# Name: "TeraChem"
# Description: ""TeraChem v1.0""
# Features included:
# Custom data:
# url=http://www.petachem.com
# support=help@petachem.com
# === Start copy after the BEGIN LICENSE line and ===
# === finish before END LICENSE line ===
----- BEGIN LICENSE -----
AAABAAAAAIkU0V0dJNIM3oS8SyO+bq6h+U/8jQZN
1Jd2/XC8MsVwWmYkZA6QqBPsFzSrha5uhgIo07zx
HFE1XdGgijDzhikkh2Y9SWqQ7MYMzpFPnk6ZRYUk
YHAwfbHtuo3T26qc/Ys8lHxg5mYsyTLC1YF7OggI
q0q1wSPFXdojtw8/mQ4TO4o3nFNOf9D6pqp3eZSf
jh9fF/nf5wfQx/k94Ho28wWp1TSmz84LduyyDDKB
+KYUFjeLFqma0nV3XSMVPsh4YL+ZevXXodW5meQm
hKy/BHOCGuDn5MBwJ3fnlna7wunUZ8kmItO2wOdL
2DdN3jT9F74pMquF01ysN33eG6kBCIElAgABSAAA
AARub2lkQQAAAAhUZXJhQ2hlbUYAAAADAAAACCQk
TkdMMDMxAAAAQiQkTkdMMjAxYiR1cmw9aHR0cDov
L3d3dy5wZXRhY2hlbS5jb20kMTkkc3VwcG9ydD1o
ZWxwQHBldGFjaGVtLmNvbQAAAAckJE5HTDMxUgAA
B+AACQAKRQAAAAA=
----- END LICENSE -----