Hi All,
Only a working and connection accepting Mail Server gives the status 220.
And I will be able to know only using telnet. And generally, if any other
application (not a mail server) is running in port 25 (just like SSH in port
25) both `nc` and `nmap` shows open but they won't give status 22
On Sat, Apr 18, 2009 at 08:27:43AM +0300, Andrei Popescu
(andreimpope...@gmail.com) wrote:
> On Sat,18.Apr.09, 08:04:12, Kurian Thayil wrote:
> > only whether the port is open or not. But what I need is to check if an
> > SMTP server is listening in that port. So I guess the best tool is
> > tel
On Sat,18.Apr.09, 08:04:12, Kurian Thayil wrote:
> Hi,
>
> Even I am in the same opinion as Tapani. `nc` or `nmap` actually shows
> only whether the port is open or not. But what I need is to check if an
> SMTP server is listening in that port. So I guess the best tool is
> telnet and to check 220
Hi,
Even I am in the same opinion as Tapani. `nc` or `nmap` actually shows
only whether the port is open or not. But what I need is to check if an
SMTP server is listening in that port. So I guess the best tool is
telnet and to check 220 status.
I don't think that I'll have to use KILL as there w
On Thu, Apr 16, 2009 at 03:38:23PM +0200, Brent Clark
(brentgclarkl...@gmail.com) wrote:
> what Im really trying to say is that your
> code may look a lot neater and easier, as opposed to
>
> case "$( (sleep 5; echo quit; ps |awk '/telnet/{print "kill "$1}' |sh) |
> telnet > 192.168.0.20 25 2
Alex Samad wrote:
how is that different from nmap ?
They essentially will both do the job. But im of the opinion that nmap
is the wrong tool for the job. Especially considering its for a bash
script (You can use swaks too).
The beauty about nc is that you can pipe it commands from a file,
On Thu, Apr 16, 2009 at 01:01:22PM +0200, Brent Clark wrote:
> Alex Samad wrote:
>> can you use nmap
> Hiya
>
> Why on earth would you wan to use nmap.
i thought there might have been a test to see what smtp server is
running there !
>
> bcl...@zion:~$ dig mx google.com +short
> 10 smtp2.google.
Alex Samad wrote:
can you use nmap
Hiya
Why on earth would you wan to use nmap.
bcl...@zion:~$ dig mx google.com +short
10 smtp2.google.com.
10 smtp3.google.com.
10 smtp4.google.com.
10 smtp1.google.com.
bcl...@zion:~$ nc -v -z smtp1.google.com 25
smtp1.google.com [209.85.237.25] 25 (smtp) op
On Thu, Apr 16, 2009 at 07:56:04PM +1000, Alex Samad (a...@samad.com.au) wrote:
> can you use nmap ?
It will tell you if the port is open or not, but not whether
there is a mail server behind it willing to talk to you.
I guess you could first use nmap to check the port and
only then try telnettin
On Thu, Apr 16, 2009 at 09:58:34AM +0300, Tapani Tarvainen wrote:
> On Thu, Apr 16, 2009 at 11:28:10AM +0530, Kurian Thayil
> (kurianmtha...@gmail.com) wrote:
>
> > I got your modification working only when telnet gives a prompt,
>
> Right you are - telnet doesn't react to the escape sequence
>
On Thu, Apr 16, 2009 at 11:28:10AM +0530, Kurian Thayil
(kurianmtha...@gmail.com) wrote:
> I got your modification working only when telnet gives a prompt,
Right you are - telnet doesn't react to the escape sequence
before connecting. Bummer. :-(
Oh well, just kill it then:
#! /bin/bash
case "
Hi Tapani Tarvainen,
I got your modification working only when telnet gives a prompt,
something like,
kuria...@debian:~$ telnet 192.168.0.20 25
Trying 192.168.0.20...
Connected to 192.168.0.20.
Escape character is '^]'.
220 rhel.virusk.org ESMTP Sendmail 8.13.8/8.13.8; Tue, 14 Apr 2009
22:34:26 +
On Thu, Apr 16, 2009 at 09:58:37AM +0530, Kurian Thayil
(kurianmtha...@gmail.com) wrote:
> I tried the script. Good work. But, one problem though. If the mail
> server is firewalled (Netfilter) and if its blocking the client (one
> where bash script is run - 192.168.0.10), then `telnet 192.168.0.
Hi Tapani Tarvainen,
I tried the script. Good work. But, one problem though. If the mail
server is firewalled (Netfilter) and if its blocking the client (one
where bash script is run - 192.168.0.10), then `telnet 192.168.0.20 25`
will not give any reply but just tries to connect indefinitely. At t
On Wed, Apr 15, 2009 at 11:47:43PM +0530, Kurian Thayil
(kurianmtha...@gmail.com) wrote:
> [...] I need to execute a script
> only after making sure that I am able to send mail using the relay
> server 192.168.0.20 (Postfix enabled). Is it possible for me to write a
> bash script which check thi
On Qua, 15 Abr 2009, "Kurian Thayil" wrote:
Hi All,
I need to write a BASH script which does a set of operations. But this
set of operations must be done only after checking if I am able to use a
relay server for sending mails. So, consider my client server where bash
script would be run as 192.
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