Password Change of Service Account in SP 2013 Farm.

We have a SP 2013 Farm and there are some five service accounts password needs to change. I would like to know how to proceed for that and after changing of password the Farm should run smoothly. If any one has any idea about if and steps to follow for password change it would be helpful for me.
We have one Application, one WFE server and one DB server. All services are configured in App Server, web request resoled from WFE server and used SQL DB (2012) as database server.
Please let me know if you need any more information.
Syed MallickAsked:
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bbaoIT ConsultantCommented:
> after changing of password the Farm should run smoothly.

if there was no password or authentication issue before, i don't see the point that changing password could let the server from run more smoothly that before, in terms of performance and reliability.

is there any particular reason for you to change the passwords of those service accounts together?
Walter CurtisSharePoint AEDCommented:
SharePoint can manage service accounts when you have it set up to do that via Central Administration. It is best practice to regularly change those passwords for security reasons. Here are some very good link that may help you. The first two I have reference often.

Just remember, as bbao mentions above, you might break your farm if this is done incorrctly.

Hope that helps...

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Walter CurtisSharePoint AEDCommented:
Information provided is accurate and correct.
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