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53 lines
1.8 KiB
Markdown
53 lines
1.8 KiB
Markdown
Introduction to Jim
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===================
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Jim is the MailHog Chaos Monkey, inspired by Netflix.
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You can invite Jim to the party using the `invite-jim` flag:
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MailHog -invite-jim
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With Jim around, things aren't going to work how you expect.
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### What can Jim do?
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* Reject connections
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* Rate limit connections
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* Reject authentication
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* Reject senders
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* Reject recipients
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It does this randomly, but within defined parameters.
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You can control these using the following command line flags:
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| Flag | Default | Description
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| --------------------- | ------- | ----
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| -invite-jim | false | Set to true to invite Jim
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| -jim-disconnect | 0.005 | Chance of randomly disconnecting a session
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| -jim-accept | 0.99 | Chance of accepting an incoming connection
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| -jim-linkspeed-affect | 0.1 | Chance of applying a rate limit
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| -jim-linkspeed-min | 1024 | Minimum link speed (in bytes per second)
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| -jim-linkspeed-max | 10240 | Maximum link speed (in bytes per second)
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| -jim-reject-sender | 0.05 | Chance of rejecting a MAIL FROM command
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| -jim-reject-recipient | 0.05 | Chance of rejecting a RCPT TO command
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| -jim-reject-auth | 0.05 | Chance of rejecting an AUTH command
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If you enable Jim, you enable all parts. To disable individual parts, set the chance
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of it happening to 0, e.g. to disable connection rate limiting:
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MailHog -invite-jim -jim-linkspeed-affect=0
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### Examples
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Always rate limit to 1 byte per second:
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MailHog -invite-jim -jim-linkspeed-affect=1 -jim-linkspeed-max=1 -jim-linkspeed-min=1
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Disconnect clients after approximately 5 commands:
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MailHog -invite-jim -jim-disconnect=0.2
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Simulate a mobile connection (at 10-100kbps) for 10% of clients:
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MailHog -invite-jim -jim-linkspeed-affect=0.1 -jim-linkspeed-min=1250 -jim-linkspeed-max=12500
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