Dear SCO Customer, Support Level Supplement (SLS) ptf7084b, the UnixWare 7 libnsl Supplement, addresses the following problems. SLS ptf7084a contained this change: 1. libnsl was modified to support gratuitous arp. SLS PTF7010C is required to actually implement gratuitous arp. SLS ptf7084b additionally contains this change: 2. yp_match() has been modified to avoid getting stuck in an infinite sleep loop when NIS is configured and gethostbyname() is called with a long name (rejects keys longer than YPMAXRECORD). Contents -------- /usr/lib/libnsl_i.so Software Notes and Recommendations ---------------------------------- SLS ptf7084b should only be installed on: UnixWare 7 Release 7.0.0 with UnixWare 7 Release Supplement Installation Instructions ------------------------- 1. Download the ptf7084b.Z file to the /tmp directory on your machine. 2. As root, uncompress the file and add the package to your system using these commands: $ su Password: # uncompress /tmp/ptf7084b.Z # pkgadd -d /tmp/ptf7084b # rm /tmp/ptf7084b 3. Shut down and reboot the system after installing this package. The release notes displayed prior to installation can be found in: /var/sadm/pkg/ptf7084/install/ptf7084.txt Removal Instructions -------------------- 1. As root, remove the package using these commands: $ su Password: # pkgrm ptf7084 2. Reboot the system after removing this package. If you have questions regarding this SLS, or the product on which it is installed, please contact your software supplier.