hi all
since a while this evening i can't access www.eda.admin.ch anymore. (dmzwg1-003.eda.admin.ch) no reply of dmzwg1-003.eda.admin.ch (162.23.6.139) does anyone know about this issue?
greets, Linus
On 15.06.2010 23:41 Linus Wegmann wrote
since a while this evening i can't access www.eda.admin.ch anymore. (dmzwg1-003.eda.admin.ch) no reply of dmzwg1-003.eda.admin.ch (162.23.6.139) does anyone know about this issue?
I guess restarting the daemon will fix it.
telnet www.eda.admin.ch 80 Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch. Escape character is '^]'. Connection closed by foreign host.
Arnold
Hi Arnold thanks for your reply but it stilll doesn't work
linus@tuxilap2:pts/4:~> ping www.eda.admin.ch PING dmzwg1-003.eda.admin.ch (162.23.6.139) 56(84) bytes of data. ^C --- dmzwg1-003.eda.admin.ch ping statistics --- 16 packets transmitted, 0 received, 100% packet loss, time 14999ms
linus@tuxilap2:pts/4:~> telnet www.eda.admin.ch 80 Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch. Escape character is '^]'. Connection closed by foreign host.
what am I doing wrong?
Linus
-------- Original Message -------- Subject: Re: [swinog] www.eda.admin.ch down? From: Arnold Nipper arnold@nipper.de To: Linus Wegmann linus.wegmann@gmx.ch Date: 16.06.2010 00:08
On 15.06.2010 23:41 Linus Wegmann wrote
since a while this evening i can't access www.eda.admin.ch anymore. (dmzwg1-003.eda.admin.ch) no reply of dmzwg1-003.eda.admin.ch (162.23.6.139) does anyone know about this issue?
I guess restarting the daemon will fix it.
telnet www.eda.admin.ch 80 Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch. Escape character is '^]'. Connection closed by foreign host.
Arnold
Arnold meant on server side, not on your side. The server accepts the connection, so there must be some software issue on the Confederation application side.
'night
Gregory
2010/6/16 Linus Wegmann linus.wegmann@gmx.ch
Hi Arnold thanks for your reply but it stilll doesn't work
linus@tuxilap2:pts/4:~> ping www.eda.admin.ch PING dmzwg1-003.eda.admin.ch (162.23.6.139) 56(84) bytes of data. ^C --- dmzwg1-003.eda.admin.ch ping statistics --- 16 packets transmitted, 0 received, 100% packet loss, time 14999ms
linus@tuxilap2:pts/4:~> telnet www.eda.admin.ch 80
Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch. Escape character is '^]'. Connection closed by foreign host.
what am I doing wrong?
Linus
Thanks Gregory
but why is there no reply for an ICMP request? it sounds to me like no service is running on that server....
good night to all! Linus
-------- Original Message -------- Subject: Re: [swinog] www.eda.admin.ch down? From: Gregory Agerba gregory.agerba@gmail.com To: Linus Wegmann linus.wegmann@gmx.ch Date: 16.06.2010 01:04
Arnold meant on server side, not on your side. The server accepts the connection, so there must be some software issue on the Confederation application side.
'night
Gregory
2010/6/16 Linus Wegmann <linus.wegmann@gmx.ch mailto:linus.wegmann@gmx.ch>
Hi Arnold thanks for your reply but it stilll doesn't work linus@tuxilap2:pts/4:~> ping www.eda.admin.ch <http://www.eda.admin.ch> PING dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch> (162.23.6.139) 56(84) bytes of data. ^C --- dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch> ping statistics --- 16 packets transmitted, 0 received, 100% packet loss, time 14999ms linus@tuxilap2:pts/4:~> telnet www.eda.admin.ch <http://www.eda.admin.ch> 80 Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch>. Escape character is '^]'. Connection closed by foreign host. what am I doing wrong? Linus
Linus,
It is not because ICMP does not reply that the server is down or having an issue :-)
Often it is blocked to avoid security risks or for other reasons... If you check www.admin.ch, it won't answer ping but will work correctly. The only way to know if the server work is to actually establish a proper connection on the port 80 / 443 and make sure you get the content of the page you expected as you expected.
This is probably a matter of software issue (anything from loadbalancer, to backend server daemon not working or any other error...).
Cheers,
Gregory
2010/6/16 Linus Wegmann linus.wegmann@gmx.ch
Thanks Gregory
but why is there no reply for an ICMP request? it sounds to me like no service is running on that server....
good night to all!
Linus
-------- Original Message -------- Subject: Re: [swinog] www.eda.admin.ch down? From: Gregory Agerba gregory.agerba@gmail.com To: Linus Wegmann linus.wegmann@gmx.ch Date: 16.06.2010 01:04
Arnold meant on server side, not on your side. The server accepts the connection, so there must be some software issue on the Confederation application side.
'night
Gregory
2010/6/16 Linus Wegmann <linus.wegmann@gmx.ch mailto: linus.wegmann@gmx.ch>
Hi Arnold thanks for your reply but it stilll doesn't work
linus@tuxilap2:pts/4:~> ping www.eda.admin.ch http://www.eda.admin.ch PING dmzwg1-003.eda.admin.ch http://dmzwg1-003.eda.admin.ch
(162.23.6.139) 56(84) bytes of data. ^C --- dmzwg1-003.eda.admin.ch http://dmzwg1-003.eda.admin.ch ping
statistics --- 16 packets transmitted, 0 received, 100% packet loss, time 14999ms
linus@tuxilap2:pts/4:~> telnet www.eda.admin.ch http://www.eda.admin.ch 80
Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch http://dmzwg1-003.eda.admin.ch.
Escape character is '^]'. Connection closed by foreign host.
what am I doing wrong?
Linus
--
Linus Wegmann Dornaustr. 4 9477 Trübbach Switzerland
Tel. +41 81 740 24 75 Mobile +41 76 563 90 21 Email: linus.wegmann@gmx.ch
Gregory, thanks for your reply and explanation! I understand now about the ICMP blocking... i guess it's because they wanna protect from DoS attacks (or other frauds).... I hope the website will work again in the morning!
Cheers and have a good day! Linus
-------- Original Message -------- Subject: Re: [swinog] www.eda.admin.ch down? From: Gregory Agerba gregory.agerba@gmail.com To: Linus Wegmann linus.wegmann@gmx.ch Date: 16.06.2010 01:22
Linus,
It is not because ICMP does not reply that the server is down or having an issue :-)
Often it is blocked to avoid security risks or for other reasons... If you check www.admin.ch http://www.admin.ch, it won't answer ping but will work correctly. The only way to know if the server work is to actually establish a proper connection on the port 80 / 443 and make sure you get the content of the page you expected as you expected.
This is probably a matter of software issue (anything from loadbalancer, to backend server daemon not working or any other error...).
Cheers,
Gregory
2010/6/16 Linus Wegmann <linus.wegmann@gmx.ch mailto:linus.wegmann@gmx.ch>
Thanks Gregory but why is there no reply for an ICMP request? it sounds to me like no service is running on that server.... good night to all! Linus -------- Original Message -------- Subject: Re: [swinog] www.eda.admin.ch <http://www.eda.admin.ch> down? From: Gregory Agerba <gregory.agerba@gmail.com <mailto:gregory.agerba@gmail.com>> To: Linus Wegmann <linus.wegmann@gmx.ch <mailto:linus.wegmann@gmx.ch>> Date: 16.06.2010 01:04 Arnold meant on server side, not on your side. The server accepts the connection, so there must be some software issue on the Confederation application side. 'night Gregory 2010/6/16 Linus Wegmann <linus.wegmann@gmx.ch <mailto:linus.wegmann@gmx.ch> <mailto:linus.wegmann@gmx.ch <mailto:linus.wegmann@gmx.ch>>> Hi Arnold thanks for your reply but it stilll doesn't work linus@tuxilap2:pts/4:~> ping www.eda.admin.ch <http://www.eda.admin.ch> <http://www.eda.admin.ch> PING dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch> <http://dmzwg1-003.eda.admin.ch> (162.23.6.139) 56(84) bytes of data. ^C --- dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch> <http://dmzwg1-003.eda.admin.ch> ping statistics --- 16 packets transmitted, 0 received, 100% packet loss, time 14999ms linus@tuxilap2:pts/4:~> telnet www.eda.admin.ch <http://www.eda.admin.ch> <http://www.eda.admin.ch> 80 Trying 162.23.6.139... Connected to dmzwg1-003.eda.admin.ch <http://dmzwg1-003.eda.admin.ch> <http://dmzwg1-003.eda.admin.ch>. Escape character is '^]'. Connection closed by foreign host. what am I doing wrong? Linus -- Linus Wegmann Dornaustr. 4 9477 Trübbach Switzerland Tel. +41 81 740 24 75 Mobile +41 76 563 90 21 Email: linus.wegmann@gmx.ch <mailto:linus.wegmann@gmx.ch>
* on the Wed, Jun 16, 2010 at 02:11:30AM +0200, Linus Wegmann wrote:
I understand now about the ICMP blocking... i guess it's because they wanna protect from DoS attacks (or other frauds)....
Actually, it's because they don't understand IP. http://www.phildev.net/mss/mss-talk.pdf
Cheers Seegras