HP-UX Internet Services Administrator's Guide (August 2003)

TCP Wrappers

TCP Wrappers Files

Chapter 352

The try-from utility can be executed from the command line as follows:

# remsh host /usr/bin/try-from

When the try-from utility is invoked, it prints the following output:

client address (%a):

client hostname (%n):

client username (%u):

client info (%c):

server address (%A):

server hostname (%N):

server process (%d):

server info (%s):

The client information describes how the remote host recognizes the

client in terms of an address, name, and user name, whereas, the server

information describes the remote host.

For more information on % <letter> expressions, type man 5

hosts_access at the HP-UX prompt.

The safe_ﬁnger Program

safe_finger, a wrapper program to the finger client, protects the data

sent by the remote finger server. This program accepts all the options

supported by the finger client.

For more information, type man 1 finger at the HP-UX prompt.

Following is an example of the safe_finger command:

# /usr/bin/safe_finger -l @xyz.abc.def.com

This command prints the user information on the remote host

xyz.abc.def.com.

HP recommends you to use this program to implement traps in the

access control language of the ﬁles /etc/hosts.allow and

/etc/hosts.deny.

For more information on setting traps, type man 5 hosts_access at the

HP-UX prompt.