# Finding Difficulties with SSL Certificate verification with Lumberjack,Logstash version 1.5.4 **URL:** \ **Category:** Logstash\ **Created:** [August 28, 2015, 4:59am UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219 "2015-08-28T04:59:53Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![KarthikaAr](https://avatars.discourse-cdn.com/v4/letter/k/958977/32.png) [@KarthikaAr](https://discuss.elastic.co/u/KarthikaAr)\ **Post date:** [August 28, 2015, 4:59am UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219/1 "2015-08-28T04:59:53Z")
Hi Greetings!! I am trying to connect one Log stash agent to another(Using Logstash 1.5.4). java version: java version "1.8.0\_51" Java(TM) SE Runtime Environment (build 1.8.0\_51-b16) Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode) I have generated .csr with CN=hostname in Server Logstash end, Later Self signed it and generated certificate from my Organization Internal Certification Dept. I have copied the Certificate to the Client End Logstash also. # My Configs will be something look like below in both ends. Client Config input{ jdbc{ jdbc\_driver\_library =\> "/pathto/opt/sqljdbc\_4.2/enu/sqljdbc4.jar" jdbc\_driver\_class =\> "com.microsoft.sqlserver.jdbc.SQLServerDriver" jdbc\_connection\_string =\> "jdbc:sqlserver://XXXXXX.bnymellon.net:14331;databaseName==XXDB" jdbc\_user =\> "XXXX" jdbc\_password =\> "YYYY" schedule =\> "\*/15 \* \* \* \*" statement =\> "Select \* from view1" } } output{ lumberjack{ codec =\> "json\_lines" hosts =\> [SERVER.HOSTNAME.NET](http://SERVER.HOSTNAME.NET) port =\> 8888 ssl\_certificate =\> "/PATHTO/server.cer" } } # Server Config input{ lumberjack{ ``` port => 8888 ssl_certificate => "/PATHTO/server.cer" ssl_key => "/PATHTO/logstash_server.key" ``` } } output{ stdout{ codec=\> "json\_lines" } } I am getting the below error when i tried connecting: All hosts unavailable, sleeping {:hosts=\>["xx.xxx.xxx.xxx"], :e=\>#\, :backtrace=\>["org/jruby/ext/openssl/SSLSocket.java:190:in `connect'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/jls-lumberjack-0.0.24/lib/lumberjack/client.rb:87:in`connection\_start'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/jls-lumberjack-0.0.24/lib/lumberjack/client.rb:70:in `initialize'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/jls-lumberjack-0.0.24/lib/lumberjack/client.rb:33:in`connect'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/jls-lumberjack-0.0.24/lib/lumberjack/client.rb:22:in `initialize'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-output-lumberjack-1.0.2/lib/logstash/outputs/lumberjack.rb:92:in`connect'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-output-lumberjack-1.0.2/lib/logstash/outputs/lumberjack.rb:51:in `register'", "org/jruby/RubyArray.java:1613:in`each'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/pipeline.rb:164:in `start_outputs'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/pipeline.rb:83:in`run'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/agent.rb:155:in `execute'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/runner.rb:90:in`run'", "org/jruby/RubyProc.java:271:in `call'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/runner.rb:95:in`run'", "org/jruby/RubyProc.java:271:in `call'", "/users/home/xbbkfzn/opt/logstash/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/stud-0.0.21/lib/stud/task.rb:12:in`initialize'"], :level=\>:error, :file=\>"logstash/outputs/lumberjack.rb", :line=\>"95", :method=\>"connect"} This is the same issue i faced with 1.5.3 version also.I don't know where I am missing,Is it with the Certificate I am using or any other config problem ?.I guess I am something with SSL certificate .Please help me with above exception ? Please advise.Thanks in advance ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [August 29, 2015, 10:38pm UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219/2 "2015-08-29T22:38:39Z")
> [@KarthikaAr](#): > > All hosts unavailable Looks like the two hosts cannot talk to each other. Can you telnet from the client to the server on port 8888 when LS is running? ---
**Author:** ![utilitynerd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/utilitynerd/32/22944_2.png) [@utilitynerd](https://discuss.elastic.co/u/utilitynerd)\ **Post date:** [August 31, 2015, 11:24pm UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219/3 "2015-08-31T23:24:23Z")
I'm having a similar issue, but get a slightly more detailed error message: :message=\>"All hosts unavailable, sleeping", :hosts=\>["xxx.xxx.xxx.xxx"], :e=\>OpenSSL::SSL::SSLError: certificate verify failed\> What is strange in my case, is logstash-fowarder set to use the same CA certificate works just fine. I also used openssl to verify that the ca certificate I'm using does verify the certificate using by the lumberjack-input. I know the hosts can communicate with each other, since logstash-forwarder works, just not logstash with the lumberjack-output plugin. ---
**Author:** ![KarthikaAr](https://avatars.discourse-cdn.com/v4/letter/k/958977/32.png) [@KarthikaAr](https://discuss.elastic.co/u/KarthikaAr)\ **Post date:** [September 15, 2015, 12:45pm UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219/4 "2015-09-15T12:45:49Z")
Yes I am successful in Telnet. Is thera anything to do with version of jruby or java I am getting Exception as message=\>"All hosts unavailable, sleeping", :hosts=\>["xxx.xxx.xxx.xxx"], :e=\>OpenSSL::SSL::SSLError: certificate verify failed\> Is there any particular port I should make available ,or any free port will do.PLease assist. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 5:29am UTC](https://discuss.elastic.co/t/finding-difficulties-with-ssl-certificate-verification-with-lumberjack-logstash-version-1-5-4/28219/5 "2017-07-06T05:29:06Z")