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 HP-UX 11i Version 1.6 Release Notes: HP-UX Servers and Workstations > Chapter 5 Networking

Internet Services
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The Internet Services product family delivers and supports the networking services considered essential to HP-UX users interoperating on TCP/IP - based networks.

Summary of Change

The Internet Services products discussed in the Internet Services section are:

  • Revised version of BIND: 9.2

  • Revised version of WU_FTPD: 2.6.1

  • Revised version of Sendmail: 8.11.1

  • Changes to rcommand

  • New telnetd options

  • Support of hostname characters by rwhod

  • Availability of Secure Internet Services

  • Non-availability of OSPF agent for gated

  • Advance notice of rbootd obsolescence

  • Use of use_psd option for rexecd

Details of Change

Each of the Internet Services products identified in the Summary of Change section is described in detail in the following sub-sections:

BIND 9.2

The Domain Name System (DNS) is a mechanism that implements a machine name hierarchy for TCP/IP based internets. The Berkeley Internet Name Domain server (BIND) is a commonly used DNS implementation.

Summary of Change

The HP-UX 11i v1.6 release installs BIND 9.2. The revised BIND 9.2 provides these new features:

  • New options in options, zone, and server statements.

  • A new utility to generate the rndc.conf configuration file.

  • New command line options for the various binaries.

  • New commands in rndc

Details of Change

Certain HP-specific changes that were available in previous BIND releases are now no longer supported:

  • noforward

    The functionality of the noforward option can now be achieved through the forwarders options to an empty list.

  • alias-ip

    Replaced by the listen-on option in the options statement

  • no-round-robin

    Alternative implementation of this feature via rrset_order option is not yet available.

The following features have been removed in BIND 9.2:

  • In options statement:

    • named-xfer

    • deallocate-on-exit

    • fake-iquery

    • statistics-interval

    • multiple cnames

    • has-old-clients

    • treat-cr-as-space

    • use-id-pool

    • fetch-glue

    • serial-queries

    • check-names

  • In view and zone statement:

    • ixfr-base

    • pubkey

    • max-ixfr-log-size

    The Bind 9.2 port to HP-UX 11i v1.6 currently does not support the topology, rfc2308-type1 and min-roots options.

Documentation

BIND 9.2 Release Notes, as well as, other Internet Services related documentation can be found at:

http://docs.hp.com/hpux/netcom/

The manpages associated with this product and released in HP-UX 11i v1.6 are:

WU-FTPD 2.6.1

The ftp application is a user interface to the File Transfer Protocol. Running and using ftp on a client host, you can copy files over a network connection between the local client host and remote server host. The server, wu-ftpd, is supported in HP-UX 11i v1.6 and above versions.

Summary of Change

The HP-UX 11i v1.6 release installs WU-FTPD 2.6.1.

Details of Change

WU-FTPD 2.6.1 supports the following new features:

  • Virtual Hosting

  • Admin utility privatepw to allow modifications of group access file information

  • New clauses for ftpaccess

  • RFC 1413 (Identification Protocol) support

  • New command line options

The HP-UX port of WU-FTPD 2.6.1 contains the following HP specific features:

  • Command line options:

    • -m number_of_tries: specifies the number of tries for a bind() socket call;

    • -n nice: sets the nice value for an WU-FTPD process;

    • -B sets the buffer size of the data socket to blocks of size of 1024 bytes;

    • -p and -P: allows private port access (-p) or third party access as well as private port access (-P) to the client.

  • Support for files greater than 2 Gb is now provided.

  • Support for large UIDs/GIDs is now provided.

  • Trusted systems features.

Changes from previous versions of WU-FTPD:

  • The option sendfiletransfer in the ftpaccess configuration file has been replaced with new command line option -U.

  • The two options suppresshostname and suppressversion have been replaced by the new greeting option in the ftpaccess configuration file.

Documentation

Internet Services related documentation can be found at:

http://docs.hp.com/hpux/netcom/

The manpages associated with this product and released in HP-UX 11i v1.6 are:

Sendmail 8.11.1

Sendmail is an electronic mail transport agent, which can be used to send messages to one or more recipients, routing the message over whatever networks are necessary.

Summary of Change

The HP-UX 11i v1.6 release introduces Sendmail 8.11.1. Sendmail 8.11.1 supports the following new features:

  • Multiple queue directories

  • Enhanced mail status codes for messages

  • DaemonPortOptions to customize the daemon's SMTP service

  • ClientPortOptions to customize outgoing connections

  • Spam control using Message Submission Agent (MSA - RFC 2476)

  • SMTP authentication using the SMTP AUTH command

  • Virtual hosting

  • Improved LDAP based routing

  • Various new option values, configuration options and command options

Details of Change

The following changes have been made in version 8.11.1 of Sendmail:

  • The error code returned for unrecognized parameters to the SMTP mail and RCPT commands is changed from 501 to 555 as per RFC 1869.

  • The configuration file (Sendmail.cf) version number is incremented to 9.

  • Aliases with no right-hand side are provided with 'missing value' warnings, when 'newaliases' is run instead of making an attempt to deliver the mail messages to an alias.

  • A new mailer flag, 'F=%' is included in this release.

  • The [hostname] is added to class 'w' for the names of all interfaces unless DontProbeInterfaces option is set.

  • All numbered rulesets have been named in this release.

  • A '/Quit' command to address the test mode is added.

  • The SMTP commands are not processed when the SMTP connection drops.

  • Purgestat and sendmail -bH options delete only expired files in the host status database, which have exceeded the values set by Timeout.hoststatus.

  • The process ID file can now be specified with the PidFile option.

In this release, the user's address is not available in the Diagnostic-Code field of delivery status notification (DSN) messages.

Documentation

Sendmail 8.11.1 Release Notes, as well as, other Internet Services related documentation can be found at:

http://docs.hp.com/hpux/netcom/

The manpages associated with this product and released in HP-UX 11i v1.6 are:

rcommand

The rcommands are comprised of:

  • rlogin/rlogind

  • remsh/rexec

  • rcp

  • rdist

  • ruptime

  • rwho/rwhod

Summary of Change

Changes to remshd/rexecd are delivered in HP-UX 11i v1.6.

Details of Change

The remshd function has been changed to display the error message Account disabled or expired when a user attempts remsh to a remote system on which his/her account is disabled.The remsh/rexec process may appear hung when a user executes certain remote commands, because remsh/rexec waits for the remote command to finish before exiting. This behavior can be changed by starting remshd/rexecd with the -m option in /etc/inetd.conf.

NOTE: The -m option may prevent standard output or error messages to be displayed on the terminal.
Compatibility

If the service name database (see the services(4) manpage) does not contain an entry for kshell, remshd fails to execute and displays this message:

remshd: getservbyname

For instance, if NIS is used as the service name database, remshd will work only if the NIS service map contains kshell service entry. Note that all releases of the HP-UX operating system have the kshell entry in the service name database as a default.

Documentation

The rexecd(1M) and remshd(1M) manpages have been updated to reflect all changes.

telnetd

The telnetd daemon executes a server that supports the DARPA standard TELNET virtual terminal protocol.

Summary of Change

New telnetd options.

Details of Change

The telnetd function contains the following new options:

  • -n specifies the time in seconds that telnetd waits for the client to respond to the initial option negotiation before timing out and closing the connection.

  • -y causes telnetd to close a connection if the baud rate is set to zero. Without this option set, telnetd does not close a connection even on zero baud rate.

Documentation

The telnetd(1M) manpage has been updated to reflect the new options.

rwhod

The rwhod server maintains the database used by rwho and ruptime. The rwhod server sends status information to and receives status information from other nodes on the local network that are running rwhod.

Summary of Change

The rwhod function now supports valid hostname characters as per RFC 952 only.

Details of Change

The supported characters are all alphanumeric characters, the minus-sign ('-') and period ('.').

NOTE: Hostnames containing invalid characters causes rwhod to fail.
Documentation

No documentation changes were necessary.

Secure Internet Services

The Secure Internet Services (SIS) is an optionally enabled mechanism that incorporates Kerberos V5 authentication and authorization for the following internet services: ftp, rcp, remsh, rlogin, and telnet.

Summary of Change

Secure Internet Services, which was not available on HP-UX 11i v1.5, is now available in HP-UX 11i v1.6.

Details of Change

Prior to this release, SIS depended on the shared library libsis.sl, which was not available for IPF platforms. SIS has now been changed to use libkrb5.sl library.

Documentation

No documentation changes were necessary.

OSPF agent for gated

The gated routing daemon currently handles the RIP, BGP, EGP, HELLO, and OSPF routing protocols.

Summary of Change

OSPF Agent for Gated is not available in HP-UX 11i v1.6.

Details of Change

The ospfagt subagent (SNMP MIB), which retrieves the OSPF routing information from the gated product, is not available in this HP-UX 11i v1.6 release. The OSPF agent depends on the SNMP developer's kit, which is not yet available on IPF platforms.

Documentation

No documentation changes were necessary.

rbootd()

The rbootd function services initial boot-up requests from RMP clients over a local area network.

Summary of Change

HP-UX 11i v1.6 is the last HP-UX operating system release that includes rbootd.

Details of Change

The rbootd function services initial bootup requests from older clients using the proprietary RMP protocol. Clients using the RMP protocol during bootup are no longer supported on releases subsequent to HP-UX 11i v1.6.

Impact

Users may need to move from older RMP clients to clients supporting BOOTP (Internet Boot Protocol) with the next HP-UX release.

Obsolescence

HP-UX 11i v1.6 is the last operating system release that includes rbootd.

rexecd()

The rexecd utility is used to connect to a specified host and execute a specified command.

Summary of Change

The rexecd routine returns stream to a remote command.

Details of Change

The [use_psd] option cannot be specified in the /etc/pam.conf file for rexecd.

Documentation

The rexecd(1M) manpage has been updated accordingly.



mbuf Functionality Obsolescence
  		 


Chapter 6 Commands and System Calls  
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