# Prepare-offline-pack subcommand ERROR **URL:** \ **Category:** Logstash\ **Created:** [February 28, 2020, 4:37am UTC](https://discuss.elastic.co/t/prepare-offline-pack-subcommand-error/221362 "2020-02-28T04:37:46Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![lznfs](https://avatars.discourse-cdn.com/v4/letter/l/76d3ee/32.png) [@lznfs](https://discuss.elastic.co/u/lznfs)\ **Post date:** [February 28, 2020, 4:37am UTC](https://discuss.elastic.co/t/prepare-offline-pack-subcommand-error/221362/1 "2020-02-28T04:37:46Z")
HI,when i install logstash offline plugins,I get this error： my server can not connect internet,so,i build my offline plugin pack in my another server that can connect internet. os:rhel7.4 logstash:7.6 [root@logstash7 bin]# ./logstash-plugin install /home/logstash-offline-plugins-7.6.0.zip OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N Validating /home/logstash-offline-plugins-7.6.0.zip Unable to download data from [https://rubygems.org](https://rubygems.org) - SocketError: Failed to open TCP connection to [rubygems.org:443](http://rubygems.org:443) (initialize: name or service not known) ([https://rubygems.org/latest\_specs.4.8.gz](https://rubygems.org/latest_specs.4.8.gz)) ERROR: Installation aborted, verification failed for /home/logstash-offline-plugins-7.6.0.zip ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 27, 2020, 4:37am UTC](https://discuss.elastic.co/t/prepare-offline-pack-subcommand-error/221362/2 "2020-03-27T04:37:48Z")
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