Simon Willison’s Weblog

Entries tagged quora, sysadmin

Filters: Type: entry × quora × sysadmin ×

Would you test your web app against simulated infrastructure failure?

I think this is a pretty interesting idea—simulating these kind of conditions isn’t easy so I imagine many teams don’t bother. If it was good (really easy to get started with, great control and reporting tools, maybe helped set up the actual tests to replay) and I trusted the service I would definitely consider paying for it.

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I would like to setup a web-server which will be used solely by myself. What would be the safest way to do so in terms of confidentiality of the contents?

I haven’t configured them myself, but it might be worth looking in to client SSL certificates for this. That way your server won’t communicate with any browser that hasn’t installed a certificate which you generate. I believe the BBC used to use this for a lot of their important servers which they wanted to be accessible only by their own developers from across the internet (I don’t know if they still do).

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What are some system administration best practices? If someone is running a production web server, what are the basic things they should be doing?

Graph everything. I’m not a good sysadmin, but one thing I’ve learned from working with with good sysadmins is that they spend a bunch of time looking at graphs.

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System Administration: What service/product do you recommend for central logging of events and errors from multiple servers? Why?

We rolled our own solution to this using MongoDB, due to its super-fast writes and ability to store, index and search JSON. We were also attracted by its capped collections, which make it easy to e.g. only log the last 100,000 items.

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