Hi Marek (and Happy New Year)
> On Linux you may use nmap. > But you are connecting to localhost, this is your local network (on > host) and ISP can not block this. This network (historically) can be > used to test network connections on computers without network card. > Now you do not have httpd daemon listening on 8083 port. > nmap also exists on mac os. I tried it with : nmap -sV 66.110.138.56 Here is the result : Starting Nmap 4.50 ( http://insecure.org ) at 2008-01-04 16:53 EST Interesting ports on c66.110.138-56.clta.globetrotter.net (66.110.138.56): Not shown: 1709 closed ports PORT STATE SERVICE VERSION 88/tcp open kerberos-sec Mac OS X kerberos-sec 8080/tcp open http Apache httpd 2.2.6 ((Unix) mod_ssl/2.2.6 OpenSSL/0.9.7l DAV/2 PHP/5.2.5) Service Info: OS: Mac OS X Only port 8080 is opened for http and port 88 is opened for kerberos (??? maybe for mail ???) but doesn't work for https. If I do: bash-3.2# openssl s_client -connect localhost:88 -state -debug Here is the result : CONNECTED(00000003) SSL_connect:before/connect initialization write to 0040BD60 [00139000] (118 bytes => 118 (0x76)) 0000 - 80 74 01 03 01 00 4b 00-00 00 20 00 00 39 00 00 .t....K... ..9.. 0010 - 38 00 00 35 00 00 16 00-00 13 00 00 0a 07 00 c0 8..5............ 0020 - 00 00 33 00 00 32 00 00-2f 03 00 80 00 00 05 00 ..3..2../....... 0030 - 00 04 01 00 80 00 00 15-00 00 12 00 00 09 06 00 ................ 0040 - 40 00 00 14 00 00 11 00-00 08 00 00 06 04 00 80 @............... 0050 - 00 00 03 02 00 80 16 fa-87 b0 81 f6 29 52 9f a7 ............)R.. 0060 - 96 ac 9f ec 07 17 73 87-3d ca c8 82 56 9a 4e 91 ......s.=...V.N. 0070 - 0c 52 7b 8b 47 fc .R{.G. SSL_connect:SSLv2/v3 write client hello A read from 0040BD60 [0013F000] (7 bytes => 7 (0x7)) 0000 - 00 00 00 ae 7e 81 ab ....~.. SSL_connect:error in SSLv2/v3 read server hello A 13536:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:s23_clnt.c:601: I must point out that ssl module is loaded in my httpd.conf. If I use http://www.canyouseeme.org/ it gives me the same result : port 8080 and 88 are opened. So I phoned my ISP and they told me that only a few ports (like 25, 80,143,..) are blocked and that port 8083 was opened !... So, I must understand that the problem is in my machine but where ? I do not have any firewall or router. Is it possible that the Apache 2 server could be responsable ? Regards