Description of problem:
Any network tool (evolution, firefox, ssh) seems to cause a large number of
do_ypcall: clnt_call: RPC: Timed out errors when attempting any kind of remote
system access.  All nis test tools seem to work just fine - ie ypwhich, ypcat,
ypmatch all function normally.  The FC5t3 system has been configured with an
architecture independant RPM of config files which works fine on FC4 (and RHEL4
and FC3).  am-utils, built from an SRPM identical to that used on FC4 has also
been installed.  See strace below for additional information.

Version-Release number of selected component (if applicable):
ypbind-1.19-0

How reproducible:
All the time, for most internet accessing tools.

Steps to Reproduce:
1.  Access the network in a form that needs NIS and DNS lookups.
    ie: evolution &   or ssh -l user remote.host.co.uk
  
Actual results:
System generates a number of do_ypcall: clnt_call: RPC: Timed out errors before
finally completing the access, usually successfully, after an approximate 1-2
minutes delay.

Expected results:
Rapid name resolution and proceed.

Additional info:
This is a sample strace from ssh while this is happening:
gettimeofday({1140790145, 273244}, NULL) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 6
bind(6, {sa_family=AF_INET, sin_port=htons(680),
sin_addr=inet_addr("0.0.0.0")}, 16) = -1 EACCES (Permission denied)
ioctl(6, FIONBIO, [1])                  = 0
setsockopt(6, SOL_IP, IP_RECVERR, [1], 4) = 0
fcntl(6, F_SETFD, FD_CLOEXEC)           = 0
close(5)                                = 0
sendto(6, "sB\223z\0\0\0\0\0\0\0\2\0\1\206\244\0\0\0\2\0\0\0\3\0\0"...,
96, 0, {sa_family=AF_INET, sin_port=htons(1023),
sin_addr=inet_addr("192.168.0.10")}, 16) = 96
poll([{fd=6, events=POLLIN}], 1, 5000)  = 0
socket(PF_NETLINK, SOCK_RAW, 0)         = 5
bind(5, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(5, {sa_family=AF_NETLINK, pid=17040, groups=00000000},
[17127303594660331532]) = 0
time(NULL)                              = 1140790150
sendto(5, "\24\0\0\0\22\0\1\3\206\23\377C\0\0\0\0\0\20\36\355", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\350\0\0\0\20\0\2\0\206\23\377C\220B\0\0\0\0\4\3\1\0
\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 700
recvmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\24\0\0\0\3\0\2\0\206\23\377C\220B\0\0\0\0\0\0\1\0\0
\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20
sendto(5, "\24\0\0\0\26\0\1\3\207\23\377C\0\0\0\0\0\20\36\355", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"<\0\0\0\24\0\2\0\207\23\377C\220B\0\0\2\10\200\376\1
\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 128
recvmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"@\0\0\0\24\0\2\0\207\23\377C\220B\0\0\n\200\200\376\1
\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 128
recvmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\24\0\0\0\3\0\2\0\207\23\377C\220B\0\0\0\0\0\0\1\0\0
\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20
brk(0x5555556e3000)                     = 0x5555556e3000
close(5)                                = 0
brk(0x5555556e2000)                     = 0x5555556e2000
sendto(6, "sB\223z\0\0\0\0\0\0\0\2\0\1\206\244\0\0\0\2\0\0\0\3\0\0"...,
96, 0, {sa_family=AF_INET, sin_port=htons(1023),
sin_addr=inet_addr("192.168.0.10")}, 16) = 96
poll( <unfinished ...>

This is the /etc/nsswitch.conf:
#  /etc/nsswitch.conf
passwd:     files compat
group:      nis files

hosts:      files nis dns

services:   files nis
networks:   nis [NOTFOUND=return] files
protocols:  files nis
rpc:        files nis
ethers:     nis [NOTFOUND=return] files
netmasks:   nis [NOTFOUND=return] files
bootparams: nis [NOTFOUND=return] files

netgroup:   nis
publickey:  nis

aliases:    files nis