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mail(): Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" - YouTube
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Curl: (7) Failed to connect to 10.0.130.62 port 80 after 0 ms: Connection refused - KodeKloud - DevOps Learning Community
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Failed to connect to Veeam Backup and Replication server: How to fix Remote Channel Sink UriNotPublished, remote connection refused, and failed to start the service | Veeam Community Resource Hub
![curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow](https://i.stack.imgur.com/VAb5x.png)
curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow
![javascript - Failed to connect to localhost port 8000: Connection refused in Node.js - Stack Overflow javascript - Failed to connect to localhost port 8000: Connection refused in Node.js - Stack Overflow](https://i.stack.imgur.com/Wic77.png)
javascript - Failed to connect to localhost port 8000: Connection refused in Node.js - Stack Overflow
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curl (7) failed to connect to localhost port 8001 connection refused - Installation/Setup - Kong Nation
![Unable to connect to Elasticsearch at http://localhost:9200 - Elasticsearch - Discuss the Elastic Stack Unable to connect to Elasticsearch at http://localhost:9200 - Elasticsearch - Discuss the Elastic Stack](https://global.discourse-cdn.com/elastic/original/2X/e/e7b377617b282a8fd7ed19f57e4da2bed50a5494.png)
Unable to connect to Elasticsearch at http://localhost:9200 - Elasticsearch - Discuss the Elastic Stack
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Ubuntu 18.04 - Issues and curl: (7) Failed to connect to localhost port 8888: Connection refused · Issue #25 · EOSIO/eosio-project-demux-example · GitHub
![curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow](https://i.stack.imgur.com/j0Rwm.png)
curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow
![Ubuntu 18.04 - Issues and curl: (7) Failed to connect to localhost port 8888: Connection refused · Issue #25 · EOSIO/eosio-project-demux-example · GitHub Ubuntu 18.04 - Issues and curl: (7) Failed to connect to localhost port 8888: Connection refused · Issue #25 · EOSIO/eosio-project-demux-example · GitHub](https://user-images.githubusercontent.com/40128659/44989875-2b116f80-af44-11e8-99d6-3042a8efda51.png)
Ubuntu 18.04 - Issues and curl: (7) Failed to connect to localhost port 8888: Connection refused · Issue #25 · EOSIO/eosio-project-demux-example · GitHub
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Sonarqube service running, but not allowing traffic to the default port 9000 - SonarQube - Sonar Community
![Connection failed for localhost:5555 [Designer 10.5] - webMethods - Software AG Tech Community & Forums Connection failed for localhost:5555 [Designer 10.5] - webMethods - Software AG Tech Community & Forums](https://global.discourse-cdn.com/techcommunity/original/3X/0/6/06ae72e1b40d885704414c2a4c26cd036ade46b9.jpeg)
Connection failed for localhost:5555 [Designer 10.5] - webMethods - Software AG Tech Community & Forums
Failed to connect to localhost port 8080: Connection refused on Mac · Issue #2 · arun-gupta/docker-for-java · GitHub
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Failed to open TCP connection to localhost:2633 (connection refused - connect (2) for "localhost" port 2633 - Community Support - OpenNebula Community Forum
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codenameone - java.net.ConnectException: fail to connect to localhost /127.0.0.1(port 8080): connect failed:ECONNREFUSED….(Codename One App) - Stack Overflow
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cURL error 7: Failed to connect to localhost port 443: Connection refused - Website, Application, Performance - Cloudflare Community
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