Hi,
My network of three Linux Red Hat 6.0 machines has become very slow all
of the sudden. When I try to telnet or ftp between the machines, it
takes about a minute for the login prompt to come up. When it does come
up and I log in, working in the remote session seems to go at normal
speed. It seems like making that initial connection is really slow. I
also see this in netscape. When I launch netscape, the browser window
comes up quick. But then when I click a link or click to check e-mail,
netscape hangs for about a minute before the next window comes up.
After this initial slowness, things seem fine. What could be the reason
for this initial slowness to make network connections? Here's the
/etc/hosts.allow and /etc/hosts.deny for all three machines:
#
# hosts.allow This file describes the names of the hosts which are
# allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
in.telnetd :LOCAL
in.ftpd :LOCAL
#
# hosts.deny This file describes the names of the hosts which are
# *not* allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
# The portmap line is redundant, but it is left to remind you that
# the new secure portmap uses hosts.deny and hosts.allow. In particular
# you should know that NFS uses portmap!
#ALL: ALL
Thanks,
Hidong
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