how to verify server certificate for gmail on mac

Verify Server Certificate For Gmail On Code To Read

Its intended for testing purposes only and provides only rudimentary interface functionality but internally uses mostly all functionality of the OpenSSL ssl library.

For testing purpose I will use mail.nixcraft.net:443 SSL certificate which is issued by Go Daddy.

Im using the same certificate for dovecot IMAP mail server, type the following to verify mail server SSL certificate: openssl sclient -CApath.certmail.nixcraft.net -connect mail.nixcraft.net:993 Sample output: CONNECTED(00000003).

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Verify Server Certificate For Gmail On Code To Read

This works fine Reply Link Jsoft Jan 14, 2011 12:12 Can you please help me with some C code to read the common name(CN) from the certificate Reply Link hawk Sep 5, 2013 8:41 did u find source code Reply Link Dave Feb 2, 2011 17:25 Yes, thank you Reply Link Tamas May 18, 2011 10:21 Saved me lots of headache.

What should I put in the.pem file Thanks Reply Link james White Jun 14, 2011 15:52 Worked fine for me, thanks for this.

Reply Link Chuck Vose Jul 28, 2011 14:53 Thank you so much, I was having trouble figuring out which package my client had purchased from verisign; this allowed me to figure out that I had the incorrect intermediate keys.

Reply Link jagadeesh May 29, 2012 11:31 openssl sclient -showcerts -connect:443 working fine but openssl sclient -showcerts -connect:443 giving error getaddrinfo: Name or service not known connect:errno0 Reply Link Tarun Jul 16, 2012 10:21 This is awesome post.

Thanks a lot. Reply Link Selvin Nov 21, 2012 21:56 Hi Guys, Please help me on this issue Verify return code: 20 (unable to get local issuer certificate) OK The Microsoft Exchange POP3 service is ready.

We have already bought a SSL certificate from Symanter, Trying to access Ms exchange 2010 server from our Siebe Application server For Past 3 days we are working on it.

Please share ur valuable input Regards, SelvinG Reply Link Bjarke Torrild Sep 10, 2013 8:34 did you find a solution for this one i have the same situation but with my own multilevel CA trust chain in a IIS 7.5 i have seen post regarding intermediate certificates not being installed, but thats not my issue.

If you rely on the Verify return code: 0 (ok) to make your decision that a connection to a server is secure, you might as well not use SSL at all.

Reply Link Nandu Oct 22, 2013 6:54 if you dont have crehash get perl file here and type: perl crehash.pl.certmail.nixcraft.net Reply Link matsakaw Jan 22, 2014 2:46 first of all, thanks for the tutorial.

On debian it is etcsslcerts Reply Link Juraj Sep 7, 2015 15:16 Would anyone please advise if the certificate is self-signed, the public key was sent to the client, but client always responds curl: (60) Peer certificate cannot be authenticated with known CA certificates.

How can I make the certificate trusted Is it only done via root certificate Any way I could generate the root certificate from the public key sent to the client both systems are Linux.

Thanks for any help, Reply Link AMine Oct 20, 2015 9:49 Hello, haw i can connect directly with no CApath openssl sclient -connect mywebserver:443 error Verify return code: 18 (self signed certificate) when i try openssl sclient -connect mywebserver:443 -CApath etcsslcerts Verify return code: 0 (ok) Reply Link calife Oct 28, 2015 18:08 Step 2: Getting The Certificate Of The Issuer Attention I ve found a problem, downloading intermediate and root certificates.

The the format you specified in the output of wget, (.pem) need to be transformed into.pem.

Alternatively you can download every single certificare using a web browser.

Thank you. Good start point.

Reply Link Jeff Puckett Dec 1, 2016 22:08 If you are running multiple virtual hosts with different certificates on the same server, then youll have to specify the hostname for which youre interested using the -servername option.

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How To Verify Server Certificate For Gmail On Mac