The product interNet Services provides the following TCP/IP services:
File Transfer Protocol (FTP)
Terminal Service (TELNET)
Domain Name Service (DNS) Resolver (DNSD)r
Domain Name Service (DNS) Server (NAMED)
Network Time Protocol (NTP)
Secure Shell Server (SSHD) and Secure Shell Clients
Mail Server (Postfix) and IMAP/POP3 Server
With interNet Services as of V2.5A, an FTP client and a telnet client are available. These can be called using the POSIX command ftp or telnet.
With interNet Services as of V3.0B, a number of tools are available in POSIX via OpenSSH which serve as replacements for the unsecure r-Utilities (rlogin, rsh, rcp).
With interNet Services as of V3.1A, a mail server based on Postfix porting basis is available in POSIX which permits a mail client access to the mailboxes.
The FTP component is described in detail below.
With FTP, you can access POSIX directories from remote systems (UNIX systems, Windows, BS2000). A prerequisite for this is that the FTP server task was started with the START-FTP-DEMON command on the BS2000 system.
You can change to the POSIX-UFS in an FTP session by specifying the %POSIX path with cd or lcd.
Example
The following example shows an extract from an FTP session:
(1) FTP> open BS2SERVER
Connected to BS2SERVER, port 21.
220 BS2SERVER FTP server (Version ... ) ready.
(2) Name (BS2SERVER:USR): user1
331 Password required for user1
Password (BS2SERVER:red):
332 Account required.
Account: m0815xyz
230 User USER1 logged in.
(3) Ftp> cd %POSIX
250 "/home/user1" is current directory now
Ftp> ...
(4) Ftp> bye
221 Goodbye.
(1) | With the ftp command, enter the BS2000 server on which the POSIX file system is installed. |
(2) | Enter the user ID, password and account of your BS2000 ID on this server. |
(3) | Specifying %POSIX with cd causes you to be switched from the BS2000 file system to the POSIX file system. You are then in the HOME directory of the POSIX ID assigned to your BS2000 ID. |
(4) | You use the FTP command to leave the POSIX file system, logoff from BS2000 and close the FTP session. |
Further information can be found in the manuals "interNet Services" [40] and [41].