Hello,

Excuse me,
Is dovecot really unable to work with solr through https ?

I tried to change ssl_client_ca_dir and ssl_client_ca_file, but nothing.




Alex 2018-03-05 21:56:
Hi,

Dovecot 2.2.32-34
FreeBSD 10.4

Solr 7.2.1(Centos 6)


When I try to use https to connect to solr, I get error when a
self-signed certificate:

Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: self signed certificate: /C=Country/
ST=State/L=Location/O=Organization/OU=Organizational Unit/CN=solr.domain.com
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: self signed certificate: /C=Country/
ST=State/L=Location/O=Organization/OU=Organizational Unit/CN=solr.domain.com
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Error: fts_solr: Indexing failed: SSL handshaking with 1.1.1.1:
8983 failed: read(SSL 1.1.1.1:8983) failed: Received invalid SSL
certificate: self signed certificate: /C=Country/ST=State/L=L
ocation/O=Organization/OU=Organizational Unit/CN=solr.domain.com (2
attempts in 0.043 secs)
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: self signed certificate: /C=Country/
ST=State/L=Location/O=Organization/OU=Organizational Unit/CN=solr.domain.com
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: self signed certificate: /C=Country/
ST=State/L=Location/O=Organization/OU=Organizational Unit/CN=solr.domain.com
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Error: fts_solr: Indexing failed: SSL handshaking with 1.1.1.1:
8983 failed: read(SSL 1.1.1.1:8983) failed: Received invalid SSL
certificate: self signed certificate: /C=Country/ST=State/L=L
ocation/O=Organization/OU=Organizational Unit/CN=solr.domain.com (2
attempts in 0.430 secs)
Mar  3 05:15:47 server dovecot: indexer-worker(em...@domain.com):
Error: Mailbox INBOX: Transaction commit failed: FTS transaction commi
t failed: backend deinit (attempted to index 1 messages (UIDs 799975..799975))


or error when letsencrypt:


Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: unable to get local issuer certifi
cate: /C=US/O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: unable to get local issuer certifi
cate: /C=US/O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Error: fts_solr: Indexing failed: SSL handshaking with 1.1.1.1
3:8983 failed: read(SSL 1.1.1.1:8983) failed: Received invalid SSL
certificate: unable to get local issuer certificate: /C=US/
O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3 (2 attempts in 0.085 secs)
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: unable to get local issuer certifi
cate: /C=US/O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Received invalid SSL certificate: unable to get local issuer certifi
cate: /C=US/O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Error: fts_solr: Indexing failed: SSL handshaking with 1.1.1.1
3:8983 failed: read(SSL 1.1.1.1:8983) failed: Received invalid SSL
certificate: unable to get local issuer certificate: /C=US/
O=Let\\\\\\\'s Encrypt/CN=Let\\\\\\\'s Encrypt Authority X3 (2 attempts in 0.112 secs)
Mar  3 01:26:31 server dovecot: indexer-worker(em...@domain.com):
Error: Mailbox INBOX: Transaction commit failed: FTS transaction com
mit failed: backend deinit (attempted to index 1 messages (UIDs 104770..104770))


90-plugins.conf:
fts_autoindex=yes
fts = solr
fts_solr = url=https://login:p...@solr.domain.com:8983/solr/dovecot/
break-imap-search debug


curl and other software connect to solr without errors in both cases.

Does dovecot have option to disable certificate validation (may be
ssl_verify = false etc.) ?


Thanks.

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