# Logstash cannot install sflow **URL:** \ **Category:** Logstash\ **Created:** [June 24, 2019, 7:10pm UTC](https://discuss.elastic.co/t/logstash-cannot-install-sflow/187187 "2019-06-24T19:10:40Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![david.shirk80](https://avatars.discourse-cdn.com/v4/letter/d/8e8cbc/32.png) [@david.shirk80](https://discuss.elastic.co/u/david.shirk80)\ **Post date:** [June 24, 2019, 7:10pm UTC](https://discuss.elastic.co/t/logstash-cannot-install-sflow/187187/1 "2019-06-24T19:10:40Z")
NOTE - I HAVE TRIED SETTING GEM SOURCE TO HTTP TEMP AND STILL NOTHING!!! TLS is set to use 1.2 all the way on up to modern. I can hit other https sites just fine. xxx@xxx:~ sudo /usr/share/logstash/bin/logstash-plugin install logstash-codec-sflow Validating logstash-codec-sflow Unable to download data from https://rubygems.org - Connection reset by peer (https://api.rubygems.org/latest\_specs.4.8.gz) ERROR: Installation aborted, verification failed for logstash-codec-sflow xxx@xxx:~ ping [api.rubygems.org](http://api.rubygems.org) PING [rubygems.org](http://rubygems.org) (151.101.128.70) 56(84) bytes of data. 64 bytes from 151.101.128.70 (151.101.128.70): icmp\_seq=1 ttl=55 time=40.2 ms 64 bytes from 151.101.128.70 (151.101.128.70): icmp\_seq=2 ttl=55 time=40.1 ms 64 bytes from 151.101.128.70 (151.101.128.70): icmp\_seq=3 ttl=55 time=52.6 ms 64 bytes from 151.101.128.70 (151.101.128.70): icmp\_seq=4 ttl=55 time=41.1 ms ^C --- [rubygems.org](http://rubygems.org) ping statistics --- I am running Ubuntu 18.04 (and tried disco dingo as well) - elastic stack 7.1 (elasticsearch, kibana, logstash), and on bare metal server. No nat and no firewalls are blocking. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 22, 2019, 7:10pm UTC](https://discuss.elastic.co/t/logstash-cannot-install-sflow/187187/2 "2019-07-22T19:10:49Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.