On Friday 14 March 2003 01:24, leeweiqi wrote:
Yup, starting portmap opens port 111/tcp. should i block this port using
iptables?
Yes, you should. In general there is no reason to support remote access to the
portmapper. (That is unless you really wish to offer nis/yp or nfs to the
outside
I'm also have sympatico and run a mail server. What they have done as far as I
know is blocked all outgoing smtp unless it's going through their servers.
What you can do to cope with this is to set your mail server to relay through
the smtp server they assigned you, smtp1.sympatico.ca for me.
try this as root: lsof | grep -i listen
then yell have the names of the processes opening certain ports
On Thu, 2003-03-13 at 09:40, Pius Lee wrote:
Hi, I recently used nmap to portscan my machine from another pc and
found that i've got the following ports open:
22 (ssh)
25 (smtp)
113
Hi, I recently used nmap to portscan my machine from another pc and
found that i've got the following ports open:
22 (ssh)
25 (smtp)
113 (pop-3)
Now, I'm very sure that I only started the sshd daemon and I DON'T even
have an smtp/pop3/any kind of mail server installed. Running netstat -l
-p
On Thu, 2003-03-13 at 15:40, Pius Lee wrote:
Hi, I recently used nmap to portscan my machine from another pc and
found that i've got the following ports open:
22 (ssh)
25 (smtp)
113 (pop-3)
Stop your network interface and watch which services are automatically
stopped.
Restarting
I'm not too sure bout that...how can I find out? Sounds evil...
Paul de Vrieze wrote:
On Thursday 13 March 2003 15:40, Pius Lee wrote:
Hi, I recently used nmap to portscan my machine from another pc and
found that i've got the following ports open:
22 (ssh)
25 (smtp)
113 (pop-3)
Are you
On 22:40 Thu 13 Mar , Pius Lee wrote:
Hi, I recently used nmap to portscan my machine from another pc and
found that i've got the following ports open:
22 (ssh)
25 (smtp)
113 (pop-3)
Now, I'm very sure that I only started the sshd daemon and I DON'T even
have an smtp/pop3/any kind
On Thursday 13 March 2003 15:56, Pius Lee wrote:
I'm not too sure bout that...how can I find out? Sounds evil...
Just try to telnet to your host on those ports from an outside machine.
Paul
--
Paul de Vrieze
Researcher
Mail: [EMAIL PROTECTED]
Homepage: http://www.devrieze.net
pgp0.pgp
begin quote
On Thu, 13 Mar 2003 22:40:25 +0800
Pius Lee [EMAIL PROTECTED] wrote:
use lsof -i instead of nmap and you can know what it is that does
what, instead of knowing something is open.
but, fam (file alteration monitor) speeds up the listing of files +
updates of them if you have KDE or
Ok, I tried again today. now nmap from a remote pc gives:
Port State Service
22/tcp openssh
25/tcp filteredsmtp
No more port 113! And what does the filtered mean?
lsof|grep LISTEN gives:
sshd 5586 root3u IPv4 7621 TCP *:ssh
Yup, starting portmap opens port 111/tcp. should i block this port using iptables?
--- Spider [EMAIL PROTECTED] wrote:
begin quote
On Thu, 13 Mar 2003 22:40:25 +0800
Pius Lee [EMAIL PROTECTED] wrote:
use lsof -i instead of nmap and you can know what it is that
does
what, instead of
Ok...telnetting from a outside machine (210.193.25.172 is my host ip):
[EMAIL PROTECTED] sysconfig]# telnet 210.193.25.172 25
Trying 210.193.25.172...
telnet: connect to address 210.193.25.172: No route to host
Does that mean no one can connect to port 25 on my machine then?
--- Paul de Vrieze
Hello,
I tried telnetting and here is what I got:
$ telnet 210.193.25.172 25
Trying 210.193.25.172...
Connected to 210.193.25.172.
Escape character is '^]'.
220 tomts15.bellnexxia.net ESMTP server (InterMail vM.5.01.04.19
201-253-122-122-119-20020516) ready Thu, 13 Mar 2003 20:25:05 -0500
quit
So, does that mean that the port is not open by me but rather it's my isp who opened
the port? Would this be a security breach on my machine? Thanks for everyone's help
man.
--- Sean Higgins [EMAIL PROTECTED] wrote:
Hello,
I tried telnetting and here is what I got:
$ telnet
On Thursday 13 March 2003 10:53 pm, leeweiqi wrote:
So, does that mean that the port is not open by me but rather it's my isp
who opened the port? Would this be a security breach on my machine? Thanks
for everyone's help man.
No security risk, but you can't run your own stmp server either,
Haha. ok, just glad that it's not a breach in my system security.
--- Norberto BENSA [EMAIL PROTECTED] wrote:
On Thursday 13 March 2003 10:53 pm, leeweiqi wrote:
So, does that mean that the port is not open by me but rather it's
my isp
who opened the port? Would this be a security breach
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