Proxy Server Blocked


#1

Today, the following server was blocked from twitter.com.

From China, this proxy is one of the very ways for me and many other people to access twitter.

Please do consider lifting the ban. Thank you very much.

IP Address: 173.255.253.115

Diagnosis: The following command had no problems with other sites, e.g. google.


~# curl --verbose 'https://www.twitter.com'
* About to connect() to www.twitter.com port 443 (#0)
*   Trying 199.59.149.198... connected
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using RC4-SHA
* Server certificate:
* 	 subject: 1.3.6.1.4.1.311.60.2.1.3=US; 1.3.6.1.4.1.311.60.2.1.2=Delaware; businessCategory=Private Organization; serialNumber=4337446; C=US; postalCode=94107; ST=California; L=San Francisco; street=795 Folsom St, Suite 600; O=Twitter, Inc.; OU=Twitter Security; CN=
* 	 start date: 2012-04-10 00:00:00 GMT
* 	 expire date: 2014-05-10 23:59:59 GMT
* 	 subjectAltName: www.twitter.com matched
* 	 issuer: C=US; O=VeriSign, Inc.; OU=VeriSign Trust Network; OU=Terms of use at https://www.verisign.com/rpa (c)06; CN=VeriSign Class 3 Extended Validation SSL CA
* 	 SSL certificate verify ok.
> GET / HTTP/1.1
> User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3
> Host: www.twitter.com
> Accept: */*
> 
< HTTP/1.1 301 Moved Permanently
< date: Wed, 21 Aug 2013 16:28:12 UTC
< location: https://twitter.com/
< server: tfe
< set-cookie: guest_id=v1%3A137710249211436982; Domain=.twitter.com; Path=/; Expires=Fri, 21-Aug-2015 16:28:12 UTC
< strict-transport-security: max-age=631138519
< Content-Length: 0
< 
* Connection #0 to host www.twitter.com left intact
* Closing connection #0
* SSLv3, TLS alert, Client hello (1):


~# traceroute www.twitter.com
traceroute to www.twitter.com (199.59.149.230), 30 hops max, 60 byte packets
 1  192.168.105.3 (192.168.105.3)  0.579 ms  0.718 ms  0.775 ms
 2  10gigabitethernet7-6.core3.fmt2.he.net (65.49.10.217)  0.480 ms  0.589 ms  0.723 ms
 3  10gigabitethernet10-1.core1.sjc2.he.net (184.105.222.14)  2.022 ms  0.779 ms  0.733 ms
 4  eqix1.cr1.sjc2.twttr.com (206.223.116.94)  2.086 ms  2.047 ms  1.892 ms
 5  ae53.smf1-er2.twttr.com (199.16.159.41)  6.893 ms  11.189 ms  11.353 ms
 6  * * *
 7  * * *
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#2

Widgets appear to be down


#3