very slow file transferring

[Douglas Chen]

Hello,

I have set up a NIS+ client on a RedHat 7.3 machine with NIS+
server running on a Sun Solaris. I installed nis-utils-1.4.1,
pam_unix2-1.9
and modified /etc/auto.master to

/home   nisplus:auto_home       -nobrowse

Also,  modified /etc/pam.d/login to

#%PAM-1.0
auth       required     /lib/security/pam_securetty.so
#auth       required    /lib/security/pam_stack.so service=system-auth
auth       required     /lib/security/pam_unix2.so      set_secrpc
auth       required     /lib/security/pam_nologin.so
#account    required    /lib/security/pam_stack.so service=system-auth
#password   required    /lib/security/pam_stack.so service=system-auth
#session    required    /lib/security/pam_stack.so service=system-auth
account    required     /lib/security/pam_unix2.so
password   required     /lib/security/pam_unix2.so
session    required     /lib/security/pam_unix2.so
session    optional     /lib/security/pam_console.so

everything looks fine except when I try to copy or transfer files
between
Solaris and Linux machines. It takes long long time to complete the job.

It also hog the network.

Is there anything that I have missed to install? Any help is greatly
appreciated.

Douglas