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From: Stephen Liu (no email)
Date: Tue Dec 05 2006 - 22:34:43 EST
Hi mouss,
I registered another domain "satimis.freeddns.com". This domain is
working, ping being possible.
I suppose "satimis.homelinux.com" having problem. I sent "dyndns.com"
a mail on unable to ping but without reply.
> use dnsstuff site (or other dns checking sites). These will tell you
> what the "world" sees. (they may also use cached data, but the rest
> of the world also sees cached data in general).
Ran "ShieldsUp" on;
http://www.grc.com/default.htm
scanning ISP' port 25, 80 and 8080
port 25
Results from probe of port: 25
1 Ports Open
0 Ports Closed
0 Ports Stealth
1 Ports Tested
THE PORT tested was found to be: OPEN.
TruStealth: FAILED - NOT all tested ports were STEALTH,
- NO unsolicited packets were received,
- A PING REPLY (ICMP Echo) WAS RECEIVED.
port 80
Stealth http
World Wide Web HTTP
Results from probe of port: 80
0 Ports Open
0 Ports Closed
1 Ports Stealth
1 Ports Tested
THE PORT tested was found to be: STEALTH.
TruStealth: FAILED - ALL tested ports were STEALTH,
- NO unsolicited packets were received,
- A PING REPLY (ICMP Echo) WAS RECEIVED.
port 8080
OPEN! http-alt
HTTP Alternate (see port 80 and port 81)
Results from probe of port: 8080
1 Ports Open
0 Ports Closed
0 Ports Stealth
1 Ports Tested
THE PORT tested was found to be: OPEN.
TruStealth: FAILED - NOT all tested ports were STEALTH,
- NO unsolicited packets were received,
- A PING REPLY (ICMP Echo) WAS RECEIVED.
* end *
> windows has a telnet command, but it's annoying. there are a lot of
> free alternatives anyway.
My friend on WinXP box can browse the homepage of my server with;
"satimis.freeddns.com:8080"
"satimis.freeddns.com"
"satimis.freeddns.com:80"
did not work.
C:\>ping -n 3 satimis.freeddns.com[code]
Pinging satimis.freeddns.com [219.79.145.110] with 32 bytes of data:
Reply from 219.79.145.110: bytes=32 time=135ms TTL=59
Reply from 219.79.145.110: bytes=32 time=131ms TTL=59
Reply from 219.79.145.110: bytes=32 time=119ms TTL=59
Ping statistics for 219.79.145.110:
Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 119ms, Maximum = 135ms, Average = 128ms
* end *
C:\>telnet satimis.freeddns.com
Connecting To satimis.freeddns.com...Could not open connection to the
host, on port 23.
No connection could be made because the target machine actively refused
it.
C:\>telnet satimis.freeddns.com 25
Connecting To satimis.freeddns.com...Could not open connection to the
host, on port 25.
A connection attempt failed because the connected party did not
properly respond after a period of time, or established connection
failed because connected host has failed to respond.
Performed following test on server
# cat /etc/postfix/main.cf
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
append_dot_mydomain = no
#delay_warning_time = 4h
# TLS parameters
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database =
btree:${queue_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package
for
# information on enabling SSL in the smtp client.
#myhostname = server1.example.com
myhostname = mail.satimis.freeddns.com
mydomain = satimis.freeddns.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
#myorigin = /etc/mailname
#mydestination = /etc/postfix/local-host-names
myorigin = $myhostname
mydestination = $myhostname, localhost.$mydomain, localhost
#relayhost = satimis.homelinux.com
mynetworks = 127.0.0.0/8, 192.168.0.0/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
smtpd_sasl_local_domain =
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions =
permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
mailbox_command =
home_mailbox = Maildir/
virtual_maps = hash:/etc/postfix/virtusertable
* end *
# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.satimis.freeddns.com.
Escape character is '^]'.
.....
This is a test
.
250 Ok: queued as AAA0A75406D
quit
221 Bye
* end *
Failed.
# cat /var/log/mail.log
Dec 6 08:41:12 #ubuntu
mail postfix/smtpd[5977]: connect from
localhost.satimis.freeddns.com[127.0.0.1]
Dec 6 08:42:37 #ubuntu
mail postfix/smtpd[5977]: AAA0A75406D:
client=localhost.satimis.freeddns.com[127.0.0.1]
Dec 6 08:43:03 #ubuntu
mail postfix/cleanup[5980]: AAA0A75406D:
message-id=<>
Dec 6 08:43:03 #ubuntu
mail postfix/qmgr[5562]: AAA0A75406D:
from=<>, size=428, nrcpt=1 (queue active)
Dec 6 08:43:03 #ubuntu
mail postfix/qmgr[5562]: AAA0A75406D: to=<>,
relay=none, delay=45, status=deferred (delivery temporarily suspended:
connect to e.mx.mail.yahoo.com[216.39.53.1]: Connection timed out)
Dec 6 08:44:18 #ubuntu
mail postfix/smtpd[5977]: disconnect from
localhost.satimis.freeddns.com[127.0.0.1]
Dec 6 08:45:21 #ubuntu
mail postfix/cleanup[6007]: 9245F754072:
message-id=<>
Dec 6 08:45:21 #ubuntu
mail postfix/qmgr[5562]: 9245F754072:
from=<>, size=536, nrcpt=1 (queue
active)
Dec 6 08:45:21 #ubuntu
mail postfix/local[6008]: fatal: gethostbyname: Success
Dec 6 08:45:22 #ubuntu
mail postfix/qmgr[5562]: warning: premature end-of-input on
private/local socket while reading input attribute name
Dec 6 08:45:22 #ubuntu
mail postfix/qmgr[5562]: warning: private/local socket: malformed
response
Dec 6 08:45:22 #ubuntu
mail postfix/qmgr[5562]: warning: transport local failure -- see a
previous warning/fatal/panic logfile record for the problem description
Dec 6 08:45:22 #ubuntu
mail postfix/master[5064]: warning: process /usr/lib/postfix/local pid
6008 exit status 1
Dec 6 08:45:22 #ubuntu
mail postfix/master[5064]: warning: /usr/lib/postfix/local: bad command
startup -- throttling
Dec 6 08:45:22 #ubuntu
mail postfix/qmgr[5562]: 9245F754072:
to=<>, orig_to=<root>, relay=none,
delay=1, status=deferred (delivery temporarily suspended: unknown mail
transport error)
Dec 6 08:48:13 #ubuntu
mail postfix/cleanup[6020]: 9951F754075:
message-id=<>
Dec 6 08:48:13 #ubuntu
mail postfix/qmgr[5562]: 9951F754075:
from=<>, size=536, nrcpt=1 (queue
active)
Dec 6 08:48:13 #ubuntu
mail postfix/local[6021]: fatal: gethostbyname: Success
Dec 6 08:48:14 #ubuntu
mail postfix/qmgr[5562]: warning: premature end-of-input on
private/local socket while reading input attribute name
Dec 6 08:48:14 #ubuntu
mail postfix/qmgr[5562]: warning: private/local socket: malformed
response
Dec 6 08:48:14 #ubuntu
mail postfix/qmgr[5562]: warning: transport local failure -- see a
previous warning/fatal/panic logfile record for the problem description
Dec 6 08:48:14 #ubuntu
mail postfix/master[5064]: warning: process /usr/lib/postfix/local pid
6021 exit status 1
Dec 6 08:48:14 #ubuntu
mail postfix/master[5064]: warning: /usr/lib/postfix/local: bad command
startup -- throttling
Dec 6 08:48:14 #ubuntu
mail postfix/qmgr[5562]: 9951F754075:
to=<>, orig_to=<root>, relay=none,
delay=1, status=deferred (delivery temporarily suspended: unknown mail
transport error)
* end *
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN tcpmss
match
1400:1536 TCPMSS clamp to PMTU
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
* end *
Others noted with tks.
B.R.
Stephen
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