# TCP input: no cipher suites in common

**URL:** <https://discuss.elastic.co/t/tcp-input-no-cipher-suites-in-common/116253>\
**Category:** Logstash\
**Created:** [January 19, 2018, 2:27pm UTC](https://discuss.elastic.co/t/tcp-input-no-cipher-suites-in-common/116253 "2018-01-19T14:27:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bakurin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bakurin/32/26760_2.png) [@bakurin](https://discuss.elastic.co/u/bakurin)\
**Post date:** [January 19, 2018, 2:27pm UTC](https://discuss.elastic.co/t/tcp-input-no-cipher-suites-in-common/116253/1 "2018-01-19T14:27:58Z")

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I'm trying to forward docker log to logstash using syslog docker driver and logstash tcp (ssl with self-signed certificate) input:

tcp {  
port =\> 5050  
type =\> "syslog"  
mode =\> "server"  
ssl\_cert =\> "/path/to/cert"  
ssl\_key =\> "/path/to/key"  
ssl\_verify =\> false  
ssl\_enable =\> true  
}

But I faced with following error:

[DEBUG][logstash.inputs.tcp] SSL Error {:exception=\>#\<OpenSSL::SSL::SSLError: no cipher suites in common\>, :backtrace=\>["org/jruby/ext/openssl/SSLSocket.java:272:in `accept'", "/usr/share/logstash/vendor/jruby/lib/ruby/shared/jopenssl19/openssl/ssl-internal.rb:106:in`accept'", "/usr/share/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-tcp-4.1.0/lib/logstash/inputs/tcp.rb:122:in `run_server'", "/usr/share/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-tcp-4.1.0/lib/logstash/inputs/tcp.rb:94:in`run'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:425:in `inputworker'","/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:419:in`start\_input'"]}

Can anyboby help me out on this?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 16, 2018, 2:28pm UTC](https://discuss.elastic.co/t/tcp-input-no-cipher-suites-in-common/116253/2 "2018-02-16T14:28:50Z")

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