ONCplus B.11.31.
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1 ONCplus Release Notes This document contains the most recent product information pertaining to the Open Networking Computing (ONC) product, version B.11.31.02, that is supported on the HP-UX 11i v3 operating system. This document addresses the following topics: • • • • • • • • “Announcement” (page 4) “Overview” (page 4) “What's New in ONCplus B.11.31.02” (page 5) “Fixes in ONCplus” (page 6) “Installation Information ” (page 7) “Features Introduced in ONCplus B.11.31.
Announcement This version of ONCplus (B.11.31.02) is supported on systems running the HP-UX 11i v3 operating system. Availability of ONCplus as an ISU Prior to the HP-UX 11i v3 release, ONC was delivered as a core product (called NFS). Core products cannot be released independent of the release of the operating system. Any changes (for example, defect fixes) to core products are only available to customers by installing HP-UX patches.
ONC consists of the following components: • Network File System The Network File System (NFS) is a distributed filesystem that provides transparent access to files and directories that are shared on remote systems. • AutoFS AutoFS is a client-side service that enables automatic mounting and unmounting of filesystems. • CacheFS The Cache Filesystem (CacheFS) is a general purpose filesystem caching mechanism that improves the performance of client side applications when working with NFS servers.
New NIS Features in ONCplus B.11.31.02 NIS introduces the following features: • Support for IPv6 Protocol The NIS clients and servers are now IPv6 enabled. Therefore, you can set up an NIS master server, an NIS slave server, or an NIS client that can be identified using an IPv6 address. The IPv6 information is stored in ipnodes, which are supersets of hosts that act as the new databases for IPv6 information. • Support for Resolving Map Nicknames NIS supports the creation of nicknames for maps.
Table 1-1 Software Fixes (continued) CR ID Description ONCplus Version QXCR1000591590 An NFSv4 server panics in ACL code. B.11.31.02 QXCR1000591875 Added functionality for the NIS 2.3 client. B.11.31.02 QXCR1000592166 An AutoFS client using NFSv4 cannot automount an NFS server which B.11.31.02 does not support NFSv4. QXCR1000592981 The automountd daemon hangs while halting a package. B.11.31.02 QXCR1000593322 Performance improvement in NFS Server WRITE path. B.11.31.
System Requirements The following section lists the requirements for installing ONCplus B.11.31.02 : • • • Hardware Requirement: Itanium / PA-RISC Software Requirement: HP-UX 11i v3 Free Disk Space: 50 MB Installing ONCplus B.11.31.02 To install ONCplus B.11.31.02 on your system, follow these steps: 1. 2. Login as root.
2. To check which version of ONCplus has been installed on your system, issue the following command: swlist | grep ONCplus An output similar to the following is displayed: ONCplus B.11.31.02 ONC+2.3 Reverting to a Previous Version of ONCplus You cannot remove the current version of ONCplus with the swremove command. However, you can revert to the previous version of ONCplus. The following sections describe how to revert to the previous version of ONCplus. Reverting to ONCplus B.11.31.
For information on the defects fixed, see “Fixes in ONCplus” (page 6). For information on the features introduced in ONCplus B.11.31_LR, see “Features Introduced in ONCplus B.11.31_LR ” (page 10). Features Introduced in ONCplus B.11.31_LR The following features were introduced in ONCplus B.11.31_LR: New NFS Features in ONCplus B.11.
NOTE: The default NFS protocol version on HP-UX 11i v3 is 3. For information on how to configure NFSv4 as the default version, see NFS Services Administrator's Guide (B1031–90064). • Support for WebNFS WebNFS is an extension of the NFS protocol. It enables easy access to files across the Internet. Filesystems on the Internet can appear to a user as a local filesystem. WebNFS works through firewalls and enables applications that run on heterogeneous operating systems to access shared files.
• NFS loopback mount By default, AutoFS uses the Local File Systems (LOFS) mounts for locally mounted filesystems. AutoFS provides an option to allow loopback NFS mounts for the local mount. Use this option in the High Availability NFS environments. • Client-side Failover Support AutoFS enables a mounted NFS read-only filesystem to transparently switch over to an alternate server if the current server goes down.
• CacheFS Write Modes CacheFS supports two write modes, write-around and non-shared. In the write-around mode, writes are made to the back filesystem. This is the default write mode. In the non-shared mode, writes are made both to the front and the back filesystems. • Cache Consistency Checking CacheFS periodically checks the files that are stored in the cache, to ensure that the files are kept up to date. This is the default option.
• Ipnodes Support Ipnodes is the new map that stores IPv6 information. Ipnodes acts as the new hosts database for IPv6 information. NIS provides support for ipnodes using the /etc/nsswitch.conf file. • Alternate Directory for passwd File Users may now specify a directory other than the default /etc directory where NIS must look for the passwd file. This feature enhances the security of the system as information regarding this alternate directory is only known to the administrator.
