Chapter 3

Administering TCP/IP

• ``Configuring TCP/IP client services'' using the Client Manager.

• ``Setting interface parameters'' to directly change the netmask, broadcast address, and IP address used at boot time.

• ``Creating subnets'' to allow several local networks to appear as a single Internet network to off-site hosts.

• ``Establishing user equivalence'' to enable users to log into their accounts on the local host from remote hosts without a password.

• ``Using the Secure TCP (``Kerberized'') utilities'' to provide Kerberos Version 5 authentication for the ftp(TC), rcmd(TC), rcp(TC), rlogin(TC), and telnet(TC) utilities for SCO OpenServer systems within an existing Kerberos Version 5 realm or DCE cell.

• ``Setting up anonymous ftp'' to enable users without accounts on the local system to transfer files via ftp to and from specified areas of your filesystem.

• ``Adding or removing pseudo-ttys'' to increase the number of pseudo-ttys available for use by rlogin, telnet, and other programs.
  

• ``Configuring UUCP over TCP/IP'' to enable file and mail transfer between two hosts that may not be running ftpd, rshd, and smtpd.

• ``Obtaining RFCs from the Internet'' to obtain additional information on TCP/IP protocols and applications from sources on the Internet.

• ``Troubleshooting TCP/IP'' to reduce or eliminate TCP/IP errors.

For information on tuning your system for increased TCP/IP performance, refer to ``Tuning TCP/IP performance'' in the Performance Guide.