1.Understand the License File Structure:

• The license file starts with either a single SERVER line or three SERVER lines (for three-server redundancy), followed by one or more VENDOR lines, and then one or more FEATURE or INCREMENT lines.
• In some cases, the license file may not require SERVER or VENDOR lines (for unserved licenses).
• The USE_SERVER line is required when you are hosting the license file using a license server.
• Use the lmcrypt utility to encrypt the license file.

2.SERVER Line Details:

• Specifies the hostname and hostid of the license server, and the TCP/IP port number for the license server manager (lmadmin or lmgrd).
  Format:

  SERVER <host> <hostid> [port] [PRIMARY_IS_MASTER] [HEARTBEAT_INTERVAL=seconds]
  

  Example:

  SERVER my_server 17007ea8 21987
  

• You can modify host names, port numbers, and properties like HEARTBEAT_INTERVAL and PRIMARY_IS_MASTER.

3.VENDOR Line Details:

• Specifies the vendor daemon name and (optionally) the path to the daemon executable.
  Format:

  VENDOR <vendor> [vendor_daemon_path] [OPTIONS=options_file_path] [PORT=port]
  

  Example:

  VENDOR sampled
  

• You can modify the path to the vendor daemon, the options file path, and TCP/IP port numbers.

4.FEATURE and INCREMENT Lines:

• These lines describe the license model for a product.
• Only the first FEATURE line for a given feature name is processed by the vendor daemon; additional licenses for the same feature use INCREMENT lines.
• Basic format:

  {FEATURE|INCREMENT} <feature> <vendor> <feat_version> <exp_date> <num_lic> [optional_attributes] SIGN="<...>"
  

  Example:

  FEATURE f1 sampled 1.000 31-dec-2020 10 SIGN="<...>"
  INCREMENT f1 sampled 1.000 permanent 5 HOSTID=INTERNET=195.186.*.* NOTICE="Licensed to Sample corp" SIGN="<...>"
  

5.Optional and Required Attributes:

• Required fields for FEATURE/INCREMENT lines include feature name, vendor, version, expiration date, number of licenses, and SIGN.
• Optional attributes (set by the publisher or administrator) can include BORROW, DUP_GROUP, HOSTID, ISSUED, NOTICE, OVERDRAFT, START, TS_OK, USER_BASED, VENDOR_STRING, VM_PLATFORMS, and more.

6.Order of Lines:

• Place FEATURE lines before INCREMENT lines for the same feature.
• Place node-locked, uncounted lines before floating lines for the same FEATURE.
• For sorting, refer to the SORT RULES section in the License Administration Guide.

7.Example License Files:

• Served license file:

  SERVER my_server 17007ea8 1700
  VENDOR sampled
  FEATURE f1 sampled 1.000 31-dec-2020 10 SIGN="<...>"
  FEATURE f2 sampled 1.000 31-dec-2020 10 SIGN="<...>"
  

• Unserved license file:

  FEATURE f1 sampled 1.000 31-dec-2020 uncounted HOSTID=INTERNET=195.186.*.* SIGN="<...>"