I read about how to enable and disable services in Ubuntu and it seems that there are different possibilities to manage them.

The first method I found is update-rc.d to add new services to startup, which aims on the /etc/init.d folder and its contents.

The other one I found is to edit .conf files in the /etc/init folder.

What's the recommended way to enable / disable / add services and why?

Could you please give a short bulletproof step by step example on how to add a service in Ubuntu and enable and disable it?


Question: Is a self cleaning lube enough for chain maintenance?
Answer: It depends -- on the lube you use, the type of riding you do, and how much of a maintenance nut you are.


The "drier" the lube you use, the cleaner the chain will stay (though "dry" lube does not protect as well against moisture).
If you ride on roads, and rarely ride in the rain or slop, you need less chain maintenance.
Some people have to have their chains spotless, others can tolerate a bit of grime.  Keeping the chain spotless probably adds 5-10% (over "moderate" maintenance) to chain and sprocket life (though you can overdo it and actually make things worse).  But that extra 5-10% life is not that significant.


One important thing to do, after lubing, is to use a rag to wipe the outside of the chain.  This removes a lot of grime and also removes excess lube that will attract more grime.

I generally use a chain washer system about once a season (and when I was commuting regularly I'd use it about once a month).  Others do more, less, or none at all.

(FWIT, I also generally use a Teflon or wax-based "dry" lube, though I used to switch to something heavier when I did winter riding.)