Every webmaster cringes at
the thought of moving hosts. Like moving your home it can
be messy and sometimes problems arise. But if you follow
these simple steps, your move will be less painful.
Backup Backup Backup
If you’ve been diligent with your backups, you’ve
got a lot of insurance to fall back on yet always make the
latest backup. If you haven’t, before you do anything
else, do a backup now. Backup anything and everything you
can and don’t forget your database if your site relies
on it. Save at least 2 copies and store them separately.
One for you to work with, and the other as an archive. Do
not underestimate how easy it is to copy over these files
as you make changes or simply mess it up.
If you’re moving to a host who has as different control
panel, make a manual backup by downloading all your files
because different control panels may not be able to restore
the backups made by your old host. They also have different
directory structures so your file trees will be in a mess.
If you need to, make a small note file with notepad with
memos for you to remember the old server configurations.
This will help you as you make changes on your new host
server and save the confusion moving back and forth between
hosts. Remember to make the correct transfer type (ASCII
or Binary) as you download. If your download is not right
chances are you’ll have a tough time getting your
site to work on the new host server.
If server logs are especially important, remember to backup
those too. There is no good way of moving logs yet because
different hosts may log statistics differently. So the best
thing to do is to download it and use a log analyzer on
your computer to make references to later on.
Gather Odds & Ends
1. A Good FTP program which you should have by now
2. Get your new host server’s DNS
3. It’s also helpful to have a script that tells you
the server environments installed on your new host server
for quick references.
4. Get the temporary URL on your new host so you can check
your site before you make a DNS change.
5. If you have your host control the domain inform them
not to change your DNS until you tell them to.
6. If you run scripts:
Ÿ Get a copy of the original installation guide and
the script. Sometimes after moving the scripts just do not
work right so you might need to install the script from
scratch.
Ÿ Get a list of all the server paths such as Perl,
Sendmail and home directory on your new server.
Ÿ If your script needs special server modules or programs
ensure they are installed and where. Even though these might
be covered before you ordered the account with the host
but sometimes your host has removed it or haven’t
installed it yet.
Inform Your Visitors
It is common and good practice to inform your visitors
and customers of the server move. If you run a e-store,
this helps assure your customers you have not fled with
their money if there is any downtime. Also give an alternate
email so you won’t lose emails in the transfer. You
might also want to give periodic updates prior, during (if
there is downtime) and after. If your site is large, doing
this is helpful because your visitors can alert you whenever
there is a part of the site not working.
Moving Day
Try to schedule the move at a time where there’s
least traffic. Backup again just before you do the move
so you’ll have the latest data. Start by first copying
or creating your custom error pages onto the new host server.
Put a small note in there about the move. You can always
remove it later. Then upload the most visible parts of the
site first i.e. the main pages then move on to the less
critical parts of the site. If you have a large site with
many divisions you might want to split them across different
days and instead move the least critical first. Just ensure
you always do a backup before you do any moving. Use the
temporary URL to check your site, visiting as many pages
as you can.
Changing DNS
Once you’re satisfied, change your DNS over. This
typically takes about 24-48 hours so you have time to make
some minor changes if need be. You might want to also take
this time to modify your old site’s error pages to
inform your visitors of the move and give a new URL if there
are URL changes. To help you determine if the DNS has resolved,
make a small change on the new pages to differentiate between
the old and the new.
Monitor
After you’ve moved and the DNS resolved, do not release
the old account yet. Keep it as long as two weeks running
concurrently. Go back and check the old servers for activity.
Check your old email account and if you have a web based
contact method on the old server check to see if any communication
is left there. Once you’re comfortable all email and
traffic is correctly directed to the new host server, you
can cancel that account.
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