Multiplexing SSH Connections with Control Master: Speed Up Deployments and Automation

May 27, 2026 · 12:00 AM UTC ·12 min read · 0 reactions · 0 comments · 28 views

TL;DR · WeSearch summary

The article discusses the benefits of using SSH ControlMaster for multiplexing connections to speed up deployments and automation. It explains how traditional SSH connections incur significant overhead due to multiple handshakes, especially in automated tasks. By utilizing ControlMaster, users can reuse established connections, drastically reducing connection times and improving efficiency.

Key facts

▪Every SSH command opens a new TCP connection, which can lead to significant delays in automation tasks.
▪ControlMaster allows one SSH connection per host to be shared by subsequent operations, skipping the handshake process for additional connections.
▪With ControlMaster, connection times can drop to single-digit milliseconds, regardless of network latency.

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Original publisher	DEV.to (Top)
Canonical URL	https://dev.to/mahafuz/multiplexing-ssh-connections-with-control-master-speed-up-deployments-and-automation-26mh
Publication time	Wed, 27 May 2026 00:00:00 +0000
Retrieval time	2026-05-27T00:07:55.281Z
Last seen	2026-05-27T00:07:55.281Z
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Opening excerpt (first ~120 words) tap to expand

try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 28317) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Mahafuzur Rahaman Posted on May 27 • Originally published at dev.to Multiplexing SSH Connections with Control Master: Speed Up Deployments and Automation #ai #ssh #cli #programming SSH Mastering (4 Part Series) 1 SSH in 2026: Why Every Developer Should Know It Cold 2 SSH Config File Mastery: Turning `~/.ssh/config` Into a Productivity Tool 3 SSH Under the Hood: Protocols, Mechanisms, and the Full Technical Story 4 Multiplexing SSH Connections with Control Master: Speed Up Deployments…

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