On Thu, Apr 07, 2005 at 04:14:08PM -0400, R. DuFresne wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Thu, 7 Apr 2005, Vernon A. Fort wrote: > > >Ted Gervais wrote: > > > >>I have just discovered that people are not able to telnet to my system > >>and I have been told that it is not because I don't have the necessary > >>ports open but rather the problem is because of protocols?? > >> > >>I have no idea what this means and am wondering if someone could explain. > >>If it is needed I can supply a copy of my firewall but was wondering > >>first if anyone has heard of this. > > > >you should be able to list the open port from the iptables command: > >iptables -L -nv > >and > >telnet localhost to see if telnet if running > > > >from the iptables, you should see port 23 open from the ip address needing > >access. you should also be able to telnet to the localhost. > > > > Which might tell him if the ports open, but not if there's anything really > listening on the port. gre telnet /etc/inetd.conf is a better starting > point, since he claims is rulebase allows telnet already, this so7unds > like the ports open but there's nothing listening. If he see this > response; > > #telnet stream tcp nowait root /usr/sbin/tcpd in.telnetd > > He needs to vi /etc/inetd.conf to enable telnet <and with tcpd for other > sec reasons> the kill -HUP inetd and also then make sure his > /etc/hosts.allow is setup to allow telnet, especially if he has a > populated /etc/hosts.deny. can always try a netstat -pane | grep 23 to see what is using/listening on port 23 > > Thanks, > > Ron DuFresne > - -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > admin & senior security consultant: sysinfo.com > http://sysinfo.com > Key fingerprint = 9401 4B13 B918 164C 647A E838 B2DF AFCC 94B0 6629 > > ...We waste time looking for the perfect lover > instead of creating the perfect love. > > -Tom Robbins <Still Life With Woodpecker> > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.4 (GNU/Linux) > > iD8DBQFCVZSVst+vzJSwZikRAi1AAJ4lcGiGAAo4nNFMFI5M4cEja7s0jwCcDI18 > xX+FOhgzqbMgGbGdIhZ4oGE= > =yWtU > -----END PGP SIGNATURE----- > >
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