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Question
How
is crossover access functioning ?
Answer
An
FTP user signs on to his system with e.g.user name FTPGUEST
and password FTP2004.
User
FTPGUEST does not exist within OS/400. The final user will be defined
within PCSACC/400.
A
crossover access allows an FTP server access to your iSeries without having
the FTP user to know the password of an OS/400 user profile.
In
contrary to Anonymous access with an eMail address, the crossover access
is based on a password for an IP address.
As
the FTP user does not know
the password of FTP, he will not be able to misuse the connection for
TELNET. Even trying will not be successful
as FTP does not have a password.
User
FTPGUEST only is defined within PCSACC/400.
No user profile exists within OS/400.
User
FTP must have a user profile within
OS/400, the password should be *NONE
and it should be enabled. FTP has
to be defined with its access authorities within PCSACC/400.
Which
steps need to be performed in order to use OS/400 user FTP,
the FTP user for crossover access
is FTPGUEST and password FTP2004
shall be valid for IP address 172.16.1.27.
1.
Step

User
profile FTP will be created within
OS/400 without password.
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2.
Step

command key F9 = New user, the display
for: 'Adding new user' will be called.
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Name
FTPGAST, description and record type 6
= *CROSS are being entered.
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Then
scroll to the third page. The field for IP access control already
is set to value 2.
With the
new record type 6 = *CROSS, the program identifies the desired
CROSSOVER functionality. Controlling
of the IP address is mandatory, Therefore, the field is already
set to value 2 and can not be changed
anymore.
Value 3
as with PCSACC/400 V3R2M08 is no longer required. The user will
be added with F9.
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3.
Step

The
maintenance program for IP addresses can be called via option
I.
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On
the 3rd user page, IP address maintenance
can be called via the IP button.
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The
format: Adding of IP addresses can
be called via command key F9.
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IP
address, password of user FTPGUEST and
the OS/400 target user profile FTP
can be specified and added via F9.
Following
IP addresses are valid.
172.16.1.4
172.16.1.*
172.16.*.*
172.*.*.*
*.*.*.*
A weekly
calender (http://www.pcsacc400.com/First/Q011.htm)
can be specified in the IP address record.
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4.
Step
Signon
is being performed with FTPGUEST and
password FTP2004. The
FTP user is now signed on within OS/400 although user profile
FTP does not have a password.
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