Hello, All.
I've experienced the dreaded connection time out problem here recently, so I
thought I would document it in case it helps. I've not found a solution,
though. The only resolved instance I have found through Deja.com had to do
with a router between the server and client, but I have no routers. Samba
is 2.0.7 running on VA Linux (Red Hat 6.2), kernel 2.2.14.
Here are the entries from my client log for the most recent instance. Note
that nothing unusual is logged prior to the error. And yes, user bill is
me!
[2000/11/03 08:37:20, 1] smbd/service.c:make_connection(550)
de-017 (10.111.1.146) connect to service it as user bill (uid=500,
gid=100) (pid 23088)
[2000/11/03 12:26:38, 0] lib/util_sock.c:read_socket_data(477)
read_socket_data: recv failure for 4. Error = Connection timed out
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service it
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service impact
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service public
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service bill
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service appsg
[2000/11/03 12:26:38, 1] smbd/service.c:close_cnum(583)
de-017 (10.111.1.146) closed connection to service apps
I've written a Perl script that will display currently logged-in users by
massaging the output from smbstatus. The problem is, if the time out occurs,
the results of smbstatus indicate that a user is no longer logged in when,
in fact, they are. So far this time out has not resulted in reports of
problems, but I would hate to depend on that. Other discussions indicate
that "netstat -s" might be helpful, so here are the results of that:
Ip:
90707865 total packets received
0 forwarded
8020 incoming packets discarded
344115 incoming packets delivered
91132082 requests sent out
Icmp:
1372 ICMP messages received
153 input ICMP message failed.
ICMP input histogram:
destination unreachable: 1368
echo requests: 1
echo replies: 3
1500 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 1499
echo replies: 1
Tcp:
34376 active connections openings
0 passive connection openings
419 failed connection attempts
0 connection resets received
47 connections established
90368695 segments received
91097543 segments send out
25550 segments retransmited
182 bad segments received.
321 resets sent
Udp:
323216 packets received
297 packets to unknown port received.
0 packet receive errors
33008 packets sent
TcpExt:
3 resets received for embryonic SYN_RECV sockets
105 packets pruned from receive queue because of socket buffer overrun
99 ICMP packets dropped because they were out-of-window
And, finally, the smb.conf file is below. If anyone has some suggestions on
fixing this, I'd appreciate the advice. Or, if there is something I can do
to troubleshoot further. This is a production machine, though, so there is
a limit on what I can do. I've found maybe six instances of the error in
various client logs over the past few months, so it doesn't happen
frequently. In the meantime, I thought I would try adding "deadtime =
0"
and "keep alive = 120" to smb.conf and see if that helps.
Thanks in advance.
-Bill Grzanich
IT Manager
ORGANICS/LaGrange
# Samba config file
#
# Global parameters
[global]
workgroup = ORGANICS
netbios name = LINUX02
server string = Samba Server 20001030164100
security = DOMAIN
domain logons = No
encrypt passwords = Yes
password server = *
log file = /var/log/samba/log.%m
max log size = 50
username map = /etc/smbusermap.conf
domain master = No
local master = No
preferred master = No
os level = 0
announce as = NT Workstation
announce version = 4.0
socket options = TCP_NODELAY
message command=/usr/bin/linpopup "%f" "%m" %s; rm
%s
guest account = smbuser
create mask = 0777
directory mask = 0777
hosts allow = localhost, 10.111.1.0/255.255.255.0
print command = lpr -r -P%p %s
lpq command = lpq -P%p
lprm command = lprm -P%p %j
printer driver file = /home/samba/printer/printers.def
map hidden = Yes
map system = Yes
map archive = Yes
oplocks = No
[homes]
comment = Home Directory
writeable = Yes
browseable = No
[printer$]
comment = Printer driver share
path = /home/samba/printer
public = Yes
browseable = Yes
[public]
comment = Public
path = /home/public
writeable = Yes
guest ok = Yes
force user = public
[...remaining user/group/printer shares snipped...]