Chapter 2. Computer System Requirements 19
112785-43: X11 6.6.1: Xsun Patch
112970-07: SunOS 5.9: patch libresolv
112951-09: SunOS 5.9: patchadd and patchrm Patch
113277-24: SunOS 5.9: st, sd, and ssd Patch
113579-06: SunOS 5.9: ypserv/ypxfrd Patch
112908-14: SunOS 5.9: krb5 shared object Patch
113073-14: SunOS 5.9: ufs and fsck Patch
Table 2-5. Solaris 9 Patch List
2.3.4.4. Tuning the System
Basic Solaris tuning guidelines are available from several books, including Sun Performance and
Tuning: Java and the Internet (ISBN 0-13-095249-4). Advanced tuning information is available
in the Solaris Tunable Parameters Reference Manual (816-7137), which can be obtained from
http://docs.sun.com/db/doc/816-7137.
2.3.4.5. Setting File Descriptors
The system-wide maximum file descriptor table size setting limits the number of concurrent connec-
tions that can be established to Directory Server. The governing parameter, rlim_fd_max, is set in
the /etc/system file. By default, if this parameter is not present, the maximum is 1024. It can be
raised to 4096 by adding a line such as set rlim_fd_max=4096 to /etc/system and rebooting
the system.
Caution
This parameter should not be raised above 4096 without first consulting your Sun Solaris support
representative since it may affect the stability of the system.
You should also set the soft limit for file descriptors:
ulimit -n in csh limit desc 1024
Use the dsktune utility (see Section 2.3.1 dsktune Utility) to learn about the hard and soft limits
for file descriptors.
2.3.4.6. Tuning TCP Parameters
By default, the TCP/IP implementation in a Solaris kernel is not correctly tuned for Internet or Intranet
services. The following /dev/tcp tuning parameters should be inspected and, if necessary, changed to
fit the network topology of the installation environment.
The tcp_time_wait_interval in Solaris 9 specifies the number of milliseconds that a TCP
connection is held in the kernel’s table after it has been closed. If its value is above 30000 (30 seconds)
and the directory is being used in a LAN, MAN, or under a single network administration, it should
be reduced by adding a line to the /etc/init.d/inetinit file similar to the following:
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