Re: SSL certificate update failed - httpd-2.4.6-90.el7

[Daniel Ferradal <dferradal@xxxxxxxxxx>]

As I see it, even if it is IIS it is configured correctly and replying otherwise you would not even reach the point of the 502 error which refers to a backend to the server you are talking to is trying to contact

What I would do is:

* Find out why something else seems to be replying

* Supposing it is an Azure thing impersonating Apache in its responses, SSL seems correctly configured, so nothing else to do, so then those 502 could be related to the fcgi backend "ProxyPassMatch ^/(.*\.php(/.*)?)$ fcgi://127.0.0.1:9054/sites/amnetgroup.com/public_html/$1" you have configured in apache rather than anything related to SSL.

* But nonetheless Find out what that 502 is about. Try testing your apache server with its local ips.

* Earlier Comments regarding clients not understanding or complaining about wildcard certificates still stand.

El mar., 7 ene. 2020 a las 12:54, Sac Isilia (<udaypratap.singh65@xxxxxxxxx>) escribió:

Hi Daniel,

Let me clarify the whole chain of events 

1. We received a request to renew the SSL certificate that is set to expire on 23rd Jan 2020

2. Post which we generated the CSR and sent the .csr file to the Digicert (RapidSSL) to issue us a wild card certificate with 2 years warranty.

3. They sent a PKCS#7 file to us that contained the certificate in .p7b extension and the other GLOBAL and ROOT CA certificate (bundle certificate). 

4. We converted the .p7b to .crt with the command that I mentioned earlier. The new .crt contained not only the wildcard certificate but also the GLOBAL and ROOT CA certificate as well. We copied the wildcard certificate and replaced with the .crt file and the bundle certificate in the respective files.

5. The private key was also modified as well.

6. httpd service restarted. The service never reported any error.

Now I am not sure why this IIS server is coming in the output. I ran this command on the server on which website (amnetgroup.com is hosted). The server on which website is hosted runs Linux and I ran the suggested commands from that server only.

We received below certificates. The *.amnetgroup.com was copied to amnetgroup.com.crt and RapidSSL was copied to bundle file and the private key. 

Please let me know if I can clarify on something else that I am missing.

Regards

Sachin Kumar

On Tue, Jan 7, 2020 at 3:57 PM Daniel Ferradal <dferradal@xxxxxxxxxx> wrote:

I have no clue about Azure, sorry.

But I can tell the server that responds says it is not Apache, if that
is some kind of frontend (the IIS server that is replying), maybe that
one is acting as a client proxing to the apache you mentioned earlier,
that would explain the errors and confirm what I mentioned earlier.

But before anything else, better clarify what really is going on.

El mar., 7 ene. 2020 a las 11:18, Sac Isilia
(<udaypratap.singh65@xxxxxxxxx>) escribió:
>
> Hi Daniel,
>
> The server on which SSL certificate is installed runs RHEL but recently the server was migrated to Azure two months ago. Is there need to be done from Azure end as well?
>
> Regards
> Sachin Kumar
>
> On Tue, 7 Jan 2020, 15:44 Daniel Ferradal, <dferradal@xxxxxxxxxx> wrote:
>>
>> I'm confused now. The server responding says it is a IIS server, not Apache.
>>
>> "Server: Microsoft-IIS/10.0"
>>
>> And the 502 is while it is trying to proxy somewhere, so...
>>
>> El mar., 7 ene. 2020 a las 6:11, Sac Isilia
>> (<udaypratap.singh65@xxxxxxxxx>) escribió:
>> >
>> > Hi Daniel/Team,
>> >
>> > I ran the command as you suggested - curl -vI https://www.amnetgroup.com and it got below message.
>> >
>> > [root@amdc2webl06 cert]# curl -vI https://www.amnetgroup.com
>> > * About to connect() to www.amnetgroup.com port 443 (#0)
>> > *   Trying 52.167.221.189...
>> > * Connected to www.amnetgroup.com (52.167.221.189) port 443 (#0)
>> > * Initializing NSS with certpath: sql:/etc/pki/nssdb
>> > *   CAfile: /etc/pki/tls/certs/ca-bundle.crt
>> >   CApath: none
>> > * Server certificate:
>> > *       subject: CN=*.amnetgroup.com
>> > *       start date: Jan 23 00:00:00 2019 GMT
>> > *       expire date: Jan 23 12:00:00 2020 GMT
>> > *       common name: *.amnetgroup.com
>> > *       issuer: CN=RapidSSL RSA CA 2018,OU=www.digicert.com,O=DigiCert Inc,C=US
>> > * NSS error -8179 (SEC_ERROR_UNKNOWN_ISSUER)
>> > * Peer's Certificate issuer is not recognized.
>> > * Closing connection 0
>> > curl: (60) Peer's Certificate issuer is not recognized.
>> > More details here: http://curl.haxx.se/docs/sslcerts.html
>> >
>> > curl performs SSL certificate verification by default, using a "bundle"
>> >  of Certificate Authority (CA) public keys (CA certs). If the default
>> >  bundle file isn't adequate, you can specify an alternate file
>> >  using the --cacert option.
>> > If this HTTPS server uses a certificate signed by a CA represented in
>> >  the bundle, the certificate verification probably failed due to a
>> >  problem with the certificate (it might be expired, or the name might
>> >  not match the domain name in the URL).
>> > If you'd like to turn off curl's verification of the certificate, use
>> >  the -k (or --insecure) option.
>> >
>> > After that I updated the file  /etc/pki/tls/certs/ca-bundle.crt with the certificate details issued to us and then I ran the command again and it showed the below message.
>> >
>> > [root@amdc2webl06 cert]# curl -vI https://www.amnetgroup.com
>> > * About to connect() to www.amnetgroup.com port 443 (#0)
>> > *   Trying 52.167.221.189...
>> > * Connected to www.amnetgroup.com (52.167.221.189) port 443 (#0)
>> > * Initializing NSS with certpath: sql:/etc/pki/nssdb
>> > *   CAfile: /etc/pki/tls/certs/ca-bundle.crt
>> >   CApath: none
>> > * SSL connection using TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
>> > * Server certificate:
>> > *       subject: CN=*.amnetgroup.com
>> > *       start date: Jan 23 00:00:00 2019 GMT
>> > *       expire date: Jan 23 12:00:00 2020 GMT
>> > *       common name: *.amnetgroup.com
>> > *       issuer: CN=RapidSSL RSA CA 2018,OU=www.digicert.com,O=DigiCert Inc,C=US
>> > > HEAD / HTTP/1.1
>> > > User-Agent: curl/7.29.0
>> > > Host: www.amnetgroup.com
>> > > Accept: */*
>> > >
>> > < HTTP/1.1 502 Bad Gateway
>> > HTTP/1.1 502 Bad Gateway
>> > < Content-Length: 1477
>> > Content-Length: 1477
>> > < Content-Type: text/html
>> > Content-Type: text/html
>> > < Server: Microsoft-IIS/10.0
>> > Server: Microsoft-IIS/10.0
>> > < Date: Tue, 07 Jan 2020 04:54:33 GMT
>> > Date: Tue, 07 Jan 2020 04:54:33 GMT
>> >
>> > <
>> > * Connection #0 to host www.amnetgroup.com left intact
>> >
>> >
>> > Also I ran the openssl command suggested by you and it showed below output.However it showed the details of the older certificate and not the newer certificate.
>> >
>> > CONNECTED(00000003)
>> > depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA
>> > verify return:1
>> > depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = RapidSSL RSA CA 2018
>> > verify return:1
>> > depth=0 CN = *.amnetgroup.com
>> > verify return:1
>> > ---
>> > Certificate chain
>> >  0 s:/CN=*.amnetgroup.com
>> >    i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=RapidSSL RSA CA 2018
>> > ---
>> > Server certificate
>> > -----BEGIN CERTIFICATE-----
>> > omitted details by me
>> > -----END CERTIFICATE-----
>> > subject=/CN=*.amnetgroup.com
>> > issuer=/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=RapidSSL RSA CA 2018
>> > ---
>> > No client certificate CA names sent
>> > Peer signing digest: SHA256
>> > Server Temp Key: ECDH, P-256, 256 bits
>> > ---
>> > SSL handshake has read 1957 bytes and written 415 bytes
>> > ---
>> > New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
>> > Server public key is 2048 bit
>> > Secure Renegotiation IS supported
>> > Compression: NONE
>> > Expansion: NONE
>> > No ALPN negotiated
>> > SSL-Session:
>> >     Protocol  : TLSv1.2
>> >     Cipher    : ECDHE-RSA-AES256-GCM-SHA384
>> >     Session-ID: 25060000435F5A20DC3729228EDBAFE8DC304C5AF2E0EEF462E7E6683C260F2E
>> >     Session-ID-ctx:
>> >     Master-Key: FF6322B425CB9D1ED3ABD7430D006DAE58B167BB06602B7FBA958F6511C03321B6FF385FD5543A047760769BE196B4EA
>> >     Key-Arg   : None
>> >     Krb5 Principal: None
>> >     PSK identity: None
>> >     PSK identity hint: None
>> >     Start Time: 1578373675
>> >     Timeout   : 300 (sec)
>> >     Verify return code: 0 (ok)
>> > ---
>> >
>> > Regards
>> > Sachin Kumar
>> >
>> > On Mon, Jan 6, 2020 at 9:36 PM Daniel Ferradal <dferradal@xxxxxxxxxx> wrote:
>> >>
>> >> Who is reporting a 502 exactly?
>> >>
>> >> Perhaps we are missing the entire chain of events to properly diagnose
>> >> the issue.
>> >>
>> >> If the problem is a client reporting an issue while proxying to this
>> >> server try manually to access ther web server yourself to discard
>> >> issues:
>> >>
>> >> curl -vI https://www.amnetgroup.com
>> >>
>> >> also you can manually try:
>> >>
>> >> openssl s_client connect www.amnetgroup.com:443
>> >>
>> >> and see if those tools report an issue.
>> >>
>> >> If the above works well, it may be client issue, some clients can not
>> >> distinguish wildcard certificates. I know you said it is the same
>> >> certificate name, etc but better recheck the whole chain of events,
>> >> httpd knows how to match CN to wildcard certificates and like
>> >> mentioned earlier, it usually is up to picky clients complaining about
>> >> mismatches because they don't know how to deal with wildcard
>> >> certificates (lots of java applications, for example).
>> >>
>> >> Also consider, if server has an issue with the certificate name it
>> >> will mention it or fail silently unless debugging is enabled for ssl
>> >> module.
>> >>
>> >> Briefly:
>> >>
>> >> * If httpd sees a difference between CN and ServerName, then there
>> >> really is a difference, make sure the correct cert is installed.
>> >> * If the wrong certificate (wrong name) is installed it will do the
>> >> same as above.
>> >> * If key and crt installed mistmatched it won't even start and fail
>> >> silently. (so do make sure httpd is starting when you install the new
>> >> certificate).
>> >> * If the certificate is correct and client is complaining, it probably
>> >> is a client which can't distinguish wildcard names, but this is not an
>> >> issue, it is a client not prepared for wildcard certificates (java
>> >> apps just need to specify a correct hostname verifier or no hostname
>> >> verification at all).
>> >>
>> >> There isn't much more to this than what I described, so pay careful
>> >> attention and make sure httpd starts.
>> >>
>> >> El lun., 6 ene. 2020 a las 14:32, Sac Isilia
>> >> (<udaypratap.singh65@xxxxxxxxx>) escribió:
>> >> >
>> >> > Hi Martin,
>> >> >
>> >> > Below is the attribute of the existing working certificate. The only difference is that the new certificate is of validity 2 years , but that should not be an issue.
>> >> > We performed below steps while updating -
>> >> >
>> >> > 1.openssl req -newkey rsa:2048 -nodes -keyout amnetgroup.com.key -out amnetgroup.com.csr -- Generated the csr
>> >> > 2. Send it to the concerned organization and got the updated PKCS#7 certificate.(in the form of .p7b file)
>> >> > 3. Extracted the certificate - openssl pkcs7 -inform der -print_certs -in Amnetgroup.p7b -out amnetgroupnew.com.crt
>> >> > 4. Updated the certificate content and the private key and the bundle file was updated too that came along with it.
>> >> > 5. Restarted the httpd service. And Alas!! website was throwing error that I mentioned earlier.
>> >> >
>> >> > Certificate:
>> >> >     Data:
>> >> >         Version: 3 (0x2)
>> >> >         Serial Number:
>> >> >             0b:1a:d3:af:3f:7d:ab:ea:7d:0a:b9:23:99:b1:bf:27
>> >> >     Signature Algorithm: sha256WithRSAEncryption
>> >> >         Issuer: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=RapidSSL RSA CA 2018
>> >> >         Validity
>> >> >             Not Before: Jan 23 00:00:00 2019 GMT
>> >> >             Not After : Jan 23 12:00:00 2020 GMT
>> >> >         Subject: CN=*.amnetgroup.com
>> >> >
>> >> > X509v3 Subject Alternative Name:
>> >> >                 DNS:*.amnetgroup.com, DNS:amnetgroup.com
>> >> >
>> >> > Below is the attribute of the new certificate of which update is failing.
>> >> >
>> >> > Certificate:
>> >> >     Data:
>> >> >         Version: 3 (0x2)
>> >> >         Serial Number:
>> >> >             0a:8f:61:f5:6f:8c:8b:ce:95:c2:d5:c5:79:8d:2b:d9
>> >> >     Signature Algorithm: sha256WithRSAEncryption
>> >> >         Issuer: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=RapidSSL RSA CA 2018
>> >> >         Validity
>> >> >             Not Before: Jan  3 00:00:00 2020 GMT
>> >> >             Not After : Mar  3 12:00:00 2022 GMT
>> >> >         Subject: CN=*.amnetgroup.com
>> >> >
>> >> > X509v3 Subject Alternative Name:
>> >> >                 DNS:*.amnetgroup.com, DNS:amnetgroup.com
>> >> >
>> >> > Regards
>> >> > Sachin Kumar
>> >> >
>> >> >
>> >> > On Mon, Jan 6, 2020 at 6:34 PM Martin Drescher <drescher@xxxxxxxxx> wrote:
>> >> >>
>> >> >> Hi Sachin,
>> >> >>
>> >> >> as long as I am doing this, a non matching CN and/or v3 SubjectAlternativeNames never effected the HTTP server in a way, that it wpold stop working for me. Both messeges you quoted, ah02292 and ah01909 are warning messages. They *may* effect your client's behavior. Hence, if there is not a person in this list knowing better, this should not be of your concern.
>> >> >>
>> >> >> What about that 502? This looks like your real issue to me.
>> >> >>
>> >> >> However, I remember reading some stuff changed (or will change?) in regard of VirtualHost clause. But even this would not make sense, if your old certificate is still working. Next thing you could do is, look for changes int the certificate's attributes. May be there is a change, that should not be there.
>> >> >>
>> >> >>
>> >> >> Am 04.01.20 um 18:02 schrieb Sac Isilia:
>> >> >> > Hi Team,
>> >> >> >
>> >> >>
>> >> >> [...]
>> >> >>
>> >> >> > *502 - Web server received an invalid response while acting as a gateway or
>> >> >> > proxy server.*
>> >> >> >
>> >> >> > *There is a problem with the page you are looking for, and it cannot be
>> >> >> > displayed.*
>> >> >> >
>> >> >> > *When the Web server (while acting as a gateway or proxy) contacted the
>> >> >> > upstream content server, it received an invalid response from the content
>> >> >> > server.”*
>> >> >> >
>> >> >> >   In the error logs I have found below messages .
>> >> >> >
>> >> >> > ah02292: init: name-based ssl virtual hosts only work for clients with tls
>> >> >> > server name indication support
>> >> >> >
>> >> >> > ah01909: rsa certificate configured for xxxxxxxxxxx:443 does not include an
>> >> >> > id which matches the server name
>> >> >> >
>> >> >> >   Please help me in resolving this issue.
>> >> >> >
>> >> >> >
>> >> >> > Regards
>> >> >> >
>> >> >> > Sachin Kumar
>> >> >> >
>> >> >>
>> >> >>
>> >> >>
>> >> >>  Martin
>> >> >>
>> >>
>> >>
>> >> --
>> >> Daniel Ferradal
>> >> HTTPD Project
>> >> #httpd help at Freenode
>> >>
>> >> ---------------------------------------------------------------------
>> >> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx
>> >> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
>> >>
>>
>>
>> --
>> Daniel Ferradal
>> HTTPD Project
>> #httpd help at Freenode
>>
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>> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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HTTPD Project
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