File
Transfer Protocol (FTP) Frequently Asked Questions (FAQ)
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Why
do a get ^M and other weird characters in my text files?
Different computers use different ways to indicate a new line
in text files. If you created your text file on a PC, and look
at it on a Mac, chances are "weird" characters will
appear where you had a new line. To prevent this, click the "Text"
mode of your FTP program when transferring text files.
I
used FTP to transfer a text file and everything is on one line.
Why?
Most likely you did not have your FTP program (client) set to
Text mode. See "Why do a get ^M and other weird characters
in my text files," above.
I
used FTP to transfer a program (executable) and it doesn't work.
Why?
You may have transferred the file using Text mode. Or perhaps
your FTP program was set to Auto, and confused the file for Text.
When transferring programs (executables) and documents such as
images, be sure to use Binary mode.
What's
the difference between Binary, Text (ASCII), and Auto?
FTP programs usually allow you to transfer files using a setting
of Binary, Text (sometimes called ASCII), or Auto.
Binary
is intended to files that are meant to only be read by a computer.
This includes executables (programs), and images to name a few.
Text
files are files that are able to be read by a human. This may
include HTML files, and plain text files.
Auto
mode will allow your FTP program to take a guess at the file,
determine if it is Binary or Text, and transfer it using the proper
mode. While this is usually reliable it does fail from time to
time. If you're experiencing problems, be sure to determine for
yourself if the file is Binary or Text, and select the appropriate
mode.
I
can't establish a connection to the FTP server and if I can, I
can't see any files. Any ideas?
Many offices (and even homes) are using devices called a Firewall.
While these devices protect your computer from the Internet, they
can often cause problems with FTP. Most modern FTP clients have
an option called Passive FTP. If you are having trouble connecting
to your FTP server, seeing files, or doing data transfers, try
selecting the Passive (PASV) option from your FTP program.
When
I upload a file, the date is exactly a few hours off. Why?
There are many different time zones in the world (four in the
United States alone). There is one common time zone, though, called
Coordinated Universal Time (UTC); sometimes refered to as Greenwich
Mean Time (GMT). Rather than favoring a specific time zone (like
Easter, Central, Mountain, or Pacific) the server internally operates
on UTC. Accordingly, your uploaded files are stamped with a UTC
time stamp. Depending on the time of the year, this is four or
five hours ahead of Eastern Time (ET).
How
do I preserve the date (timestamp) on my files after uploading?
I can't connect to your FTP server. Is FTP down?
Most homes and businesses use firewalls. Because of the way traditional FTP establishes a connection, it cannot work with many firewalls. To establish a connection you must use "Passive FTP." We recommend to always use Passive FTP whether you are behind a firewall or not.
How do I enable Passive FTP in Microsoft FrontPage: To enable Passive FTP in Microsoft FrontPage visit http://office.microsoft.com/en-gb/assistance/HA010785401033.aspx
How do I enable Passive FTP in Macromedia DreamWeaver: To enable Passive FTP in DreamWeaver click here.
How do I enable Passive FTP in Microsoft Internet Explorer:
- Open the Tools menu
- Click on Internet Options
- Click on Advanced tab
- Disable the Enable folder view for FTP sites option
- Enable the Passive FTP option
- Click the OK button
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