nakedbion.blogg.se - Openssl sclient connect

OPENSSL SCLIENT CONNECT WINDOWS 10
OPENSSL SCLIENT CONNECT ANDROID
OPENSSL SCLIENT CONNECT VERIFICATION

Verify return code: 20 (unable to get local issuer certificate)

OPENSSL SCLIENT CONNECT VERIFICATION

Verification error: unable to get local issuer certificate SSL handshake has read 4654 bytes and written 400 bytes Issuer=C = US, O = Let's Encrypt, CN = R3

OPENSSL SCLIENT CONNECT WINDOWS 10

Yet on Windows 10 with "C:\Program Files\OpenSSL-Win64\bin\openssl.exe" version Weak or insecure signature, but no impact on root certificate|Īnd then SSL Checker nothing jumped out at me. Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

OPENSSL SCLIENT CONNECT ANDROID

This chain may cause issues for some old devices, particularly Android 7.0 and lower. This Let's Encrypt chain uses the newer ISRG Root X1 root, which is trusted by current operating systems. # Let's Encrypt Modern Chain (May not support some older devices) I:/O=Digital Signature Trust Co./CN=DST Root CA X3Īnd with Quick Chain Checker I see this: # Certificate Chain for I:/C=US/O=Internet Security Research Group/CN=ISRG Root X1Ģ s:/C=US/O=Internet Security Research Group/CN=ISRG Root X1

Verify error:num=10:certificate has expiredĭepth=3 O = Digital Signature Trust Co., CN = DST Root CA X3 I can open our site just fine using Chrome/Firefox/Safari, but if I try to run openssl s_client -connect :443, this is what I get: CONNECTED(00000005)ĭepth=1 O = Digital Signature Trust Co., CN = DST Root CA X3 However, we have users reporting NET::ERR_CERT_DATE_INVALID. Sudo openssl x509 -dates -noout -in fullchain.pem Sudo openssl x509 -dates -noout -in chain.pem I assured that we have correct dates in ALL our certificates: sudo openssl x509 -dates -noout -in cert.pem Let’s pass baeldung.Nginx ssl_certificate directive pointing to /etc/letsencrypt/live//fullchain.pem This mechanism is called Server Name Indication.īut why did our first example work without this option? By default, OpenSSL populates servername with the same value passed to connect. The reverse proxy (identified by the 172.64.104.34 address) serves multiple web-servers, including our own.Īs a result, we need to send a servername to it, so that it knows which certificate to return. SSL handshake has read 7 bytes and written 293 bytes Let’s run our previous example but with the host IP address instead: $ openssl s_client -showcerts -connect 172.64.104.34:443ġ40695394247936:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshakeįailure:ssl/record/rec_layer_s3.c:1543:SSL alert number 40 In some situations, our server might sit behind a reverse proxy for load-balancing purposes.įirst, let’s find our host IP using nslookup: $ nslookup

Finally, we use sed to filter the output and dump the certificates to a file.

As a result, the interactive session closes because it reads EOF.

First, we call the openssl s_client command and redirect the null device ( /dev/null) to its standard input.

Let’s now take a look at the certifs.pem file: However, let’s use some Linux magic, and extract only the certificates from the whole output: $ openssl s_client -showcerts -connect :443 certifs.pem We could just copy-paste these outputs into a file, and do further processing. MTAxNDEyMDAwMFoXDTIwMTAwOTEyMDAwMFowbzELMAkGA1UEBhMCVVMxCzAJBgNV MQswCQYDVQQGEwJJRTESMBAGA1UEChMJQmFsdGltb3JlMRMwEQYDVQQLEwpDeWJlĬlRydXN0MSIwIAYDVQQDExlCYWx0aW1vcmUgQ3liZXJUcnVzdCBSb290MB4XDTE1

MIIDozCCAougAwIBAgIQD/PmFjmqPRoSZfQfizTltjANBgkqhkiG9w0BAQsFADBa We can use the -showcerts option to get the complete certificate chain: $ openssl s_client -showcerts -connect :443 This keeps the interactive session open until we type Q (quit) and press, or until EOF is encountered. SW5jIEVDQyBDQS0yMB4XDTIwMDEzMTAwMDAwMFoXDTIwMTAwOTEyMDAwMFowbTEL GTAXBgNVBAoTEENsb3VkRmxhcmUsIEluYy4xIDAeBgNVBAMTF0Nsb3VkRmxhcmUg MIIE6DCCBI2gAwIBAgIQDJkqrAVVvIBWJvIMDkzpwzAKBggqhkjOPQQDAjBvMQswĬQYDVQQGEwJVUzELMAkGA1UECBMCQ0ExFjAUBgNVBAcTDVNhbiBGcmFuY2lzY28x We can get an interactive SSL connection to our server, using the openssl s_client command: $ openssl s_client -connect :443