# Hosts as name instead of IP? **URL:** \ **Category:** Logstash\ **Created:** [November 20, 2018, 12:06pm UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536 "2018-11-20T12:06:49Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![BigAlbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bigalbert/32/37844_2.png) [@BigAlbert](https://discuss.elastic.co/u/BigAlbert)\ **Post date:** [November 20, 2018, 12:06pm UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/1 "2018-11-20T12:06:49Z")
in my conf file, can I use the Elasticsearch machine "name" instead of IP? tried using hosts =\> ["Elasticsearch:9200"] yet failed. notice that I CAN ping Elasticsearch .. THX -Albert. ---
**Author:** ![Eniqmatic](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Eniqmatic](https://discuss.elastic.co/u/Eniqmatic)\ **Post date:** [November 20, 2018, 1:56pm UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/2 "2018-11-20T13:56:45Z")
It should be: ``` hosts => ["http://elasticsearch:9200"] ``` ---
**Author:** ![BigAlbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bigalbert/32/37844_2.png) [@BigAlbert](https://discuss.elastic.co/u/BigAlbert)\ **Post date:** [November 21, 2018, 9:27am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/3 "2018-11-21T09:27:33Z")
aftre implementing the change, log shows [2018-11-21T09:21:05,477][INFO][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=\>{:removed=\>, :added=\>[http://:9200/]}} [2018-11-21T09:21:05,485][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>http://:9200/, :path=\>"/"} [2018-11-21T09:21:05,597][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"http://:9200/", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [http://:9200/][Manticore::ClientProtocolException] URI does not specify a valid host name: http:/"} [2018-11-21T09:21:05,619][INFO][logstash.outputs.elasticsearch] New Elasticsearch output {:class=\>"LogStash::Outputs::ElasticSearch", :hosts=\>["http://Master\_Elasticsearch:9200"]} [2018-11-21T09:21:05,788][INFO][logstash.filters.geoip] Using geoip database {:path=\>"/usr/local/logstash-6.5.0/vendor/bundle/jruby/2.3.0/gems/logstash-filter-geoip-5.0.3-java/vendor/GeoLite2-City.mmdb"} ??? ---
**Author:** ![Eniqmatic](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Eniqmatic](https://discuss.elastic.co/u/Eniqmatic)\ **Post date:** [November 21, 2018, 9:46am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/4 "2018-11-21T09:46:28Z")
What version of ES/Logstash are you using? ---
**Author:** ![BigAlbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bigalbert/32/37844_2.png) [@BigAlbert](https://discuss.elastic.co/u/BigAlbert)\ **Post date:** [November 21, 2018, 9:49am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/5 "2018-11-21T09:49:02Z")
logstash = 6.5.0 kibana = 6.4.1 elasticsearch = 6.4.1 ---
**Author:** ![Eniqmatic](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Eniqmatic](https://discuss.elastic.co/u/Eniqmatic)\ **Post date:** [November 21, 2018, 9:51am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/6 "2018-11-21T09:51:26Z")
Can I see your logstash config file? ---
**Author:** ![BigAlbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bigalbert/32/37844_2.png) [@BigAlbert](https://discuss.elastic.co/u/BigAlbert)\ **Post date:** [November 21, 2018, 10:02am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/7 "2018-11-21T10:02:25Z")
input { file { path =\> "/usr/src/octopus/MyProd-1.0.0.log" type =\> "logs" start\_position =\> "beginning" } } filter { grok{ match =\> { "message" =\> "%{COMBINEDAPACHELOG}" } } mutate{ convert =\> { "bytes" =\> "integer" } } date { match =\> ["timestamp", "dd/MMM/YYYY:HH:mm:ss Z"] locale =\> en remove\_field =\> "timestamp" } geoip { source =\> "clientip" } useragent { source =\> "agent" target =\> "useragent" } } output { stdout { codec =\> dots } ``` elasticsearch { hosts => ["172.18.0.5:9200"] --> working hosts => ["http://Elasticsearch:9200"] --> Not working index => "MyProd" } ``` } ---
**Author:** ![Eniqmatic](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Eniqmatic](https://discuss.elastic.co/u/Eniqmatic)\ **Post date:** [November 21, 2018, 10:20am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/8 "2018-11-21T10:20:12Z")
Have you tried with the FQDN? So the domain name at the end of the host name? ---
**Author:** ![BigAlbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bigalbert/32/37844_2.png) [@BigAlbert](https://discuss.elastic.co/u/BigAlbert)\ **Post date:** [November 21, 2018, 11:12am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/9 "2018-11-21T11:12:27Z")
Works fine now - Thx ---
**Author:** ![Eniqmatic](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Eniqmatic](https://discuss.elastic.co/u/Eniqmatic)\ **Post date:** [November 21, 2018, 11:33am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/10 "2018-11-21T11:33:46Z")
Glad you got it, please mark the answer as solution if it helped! ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 19, 2018, 11:33am UTC](https://discuss.elastic.co/t/hosts-as-name-instead-of-ip/157536/11 "2018-12-19T11:33:49Z")
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