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Agentless Scheduling is not a replacement for use of JS7 Agents.

When to use SSH

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• In a situation in which no JS7 Agent is available for the target platform, for example on mainframe platforms.
• In an on-premises environment with relaxed security requirements for which full access between two systems is acceptable.
• In a scenario that does not require high availability and clustering but is limited to remote execution on an individual machine.

When not to use SSH

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• When using job scheduling in a Cloud Environment: SSH is not a suitable method for interaction between containers. Cloud architectures are based on services offered by containers. SSH is a way to break into your neighbor's door instead of asking a service. SSH is not a cloud compatible approach.
• Security-wise SSH is a risk as it implements Code Injection on a remote system. SSH offers to impersonate any preconfigured account and to execute arbitrary code. The problem with impersonation is that there are no limits to what an account can execute on a remote system. SSH cannot be controlled in a reasonable way to limit an account's capabilities - and otherwise ends in a nightmare such as sudo configurations that introduce more insecurity the more complex they become.
• When High Availability is required: SSH does not include clustering capabilities as it works for a single machine only. JS7 offers the JS7 - Agent Cluster for redundancy and scalability of job execution with remote systems.
• When Reliable Termination of Jobs is required: the SSH architecture operating a client on the local machine and a daemon on the SSH server that starts the effective processes for a job does not allow reliable termination. Modern SSH servers can kill a running process if the connection from the client is lost. This might not work in case of connections being dropped by a firewall triggering for idle timeouts if jobs are running for a longer time. And this does not apply to detached child processes. A JS7 Agent can reliably terminate jobs and any processes started from such jobs.

Feature Summary

Remote Job Execution

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