We have a CentOS 5.5 server that is running kernel 2.6.18-194.32.1.el5 and SAMBA version 3.0.33-3.29.el5_6.2. We have a hidden share created that we use to map network drives to. This was working fine on our Windows XP SP3 machines and then all of a sudden it quit working. I have checked a number of things and am at a loss for how to troubleshoot this issue further. Listed below are snippets from various configs.
/etc/samba/smb.conf
[global]
client lanman auth = yes
client ntlmv2 auth = yes
dns proxy = no
encrypt passwords = yes
hosts allow = 10.130.155. 127.0.0.1
hosts deny = all
lanman auth = no
load printers = no
log level = 1
max connections = 30
netbios name = SAMBA
ntlm auth = yes
null passwords = no
printcap name = /etc/printcap
printing =
security = user
server string = SAMBA Server
smb ports = 445
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 SO_SNDBUF=65536 SO_KEEPALIVE
workgroup = Workgroup
#============ Share Definitions =======================#
[share$]
comment = Share
create mask = 0775
directory mask = 0775
force group = staff
path= /vcroot
valid users = @staff
writable = yes
iptables rules for SAMBA
#!/bin/sh
IPT="/sbin/iptables"
$IPT -A INPUT -s 10.130.155.0/24 -m state --state NEW -m udp -p udp --dport 137 -j ACCEPT
$IPT -A INPUT -s 10.130.155.0/24 -m state --state NEW -m udp -p udp --dport 138 -j ACCEPT
$IPT -A INPUT -s 10.130.155.0/24 -m state --state NEW -m tcp -p tcp --dport 139 -j ACCEPT
$IPT -A INPUT -s 10.130.155.0/24 -m state --state NEW -m tcp -p tcp --dport 445 -j ACCEPT
$IPT -A INPUT -s 10.130.155.0/24 -m state --state NEW -m udp -p udp --dport 445 -j ACCEPT
The output from the /var/log/samba/smdb.log file shows the following:
[2011/05/24 16:40:04, 0] lib/util_sock.c:read_data(540) read_data: read failure for 4 bytes to client 10.130.155.169. Error = Connection reset by peer
[2011/05/24 16:40:04, 0] lib/util_sock.c:read_data(540) read_data: read failure for 4 bytes to client 10.130.155.169. Error = Connection reset by peer
[2011/05/24 16:40:04, 0] lib/util_sock.c:read_data(540) read_data: read failure for 4 bytes to client 10.130.155.169. Error = Connection reset by peer
[2011/05/24 16:40:04, 1] smbd/service.c:make_connection_snum(1077) machineA (10.130.155.169) connect to service share$ initially as user userA (uid=xxx, gid=xxx) (pid 646)
[2011/05/24 16:40:04, 0] lib/util_sock.c:read_data(540) read_data: read failure for 4 bytes to client 10.130.155.169. Error = Connection reset by peer
[2011/05/24 16:40:04, 1] smbd/service.c:close_cnum(1274) machineA (10.130.155.169) closed connection to service share$
I have tried adjusting the "smb ports" setting within the smb.conf file and that did not seem to matter. I have also tried adjusting the client settings for "Network security: LAN Manager authentication level - Send LM & NTLM responses" and that did not seem to make a difference either.
Any help you can provide would be greatly appreciated.
