Update 2/4/05: If you are using the Debian-based root filesystems, see below for updated information
Can I use telnet and ftp on my board?
Yes. Depending on the root file system you are using you may need to configure or install software first. This topic describes the steps necessary for using these feature on our ramdisk root file system. If you are using a different root file system (e.g. the Debian distriution), differet steps may be necessary.
With our ramdisk root file system, your board should already support telnet both ways and act as an ftp client.
To enable your board to be an ftp server, follow the instructions in one of the sections below. Look at Setting my board up as an ftp server if you are using one of our recent ramdisks. If you are using an old ramdisk (provided with the Linux 2.4.9-ac10-rmk2-np1-ads3 kernel, or earlier) look at Installing an ftp server on my board or consider upgrading.
Setting my board up as an ftp server
Unless you have an old ramdisk, most of the ftp server setup already done for you. All you have do is
1. First, uncomment the ftpd line in /etc/inetd.conf
2. Then, 'chmod a+rwx ~ftp' if you want to allow ftp to save files on the ramdisk.
3. Finally, kill -HUP the inet daemon to restart it with ftp enabled. (See What do you mean, 'kill -HUP the inet daemon'? below if you don't know what this means.)
Installing an ftp server on my board
Here is an ftp daemon and the source code (from ftp.troll.no/freebies/ftpd) so your board can be an ftp server.
It works for anonymous ftp if you do the following:
1. Put the ftpd daemon in /usr/sbin/ and rename it 'in.ftpd':
mv /mnt/ftpd /usr/sbin/in.ftpd
2. Create /ftp and /ftp/bin directories under /home and give everyone read/execute access to them:
mkdir /home/ftp
mkdir /home/ftp/bin
chmod 755 /home/ftp /home/ftp/bin
3. Create a /pub directory under /home/ftp and give everyone FULL access to that:
mkdir /home/ftp/pub
chmod 777 /home/ftp/pub
4. Edit /etc/inetd.conf to remove the comment on the ftp line.
5. Finally, kill -HUP the inet daemon to restart it with ftp enabled.
You should now be able to connect from another machine as 'ftp' or 'anonymous' and be able to 'cd, ls, put, & get' to/from the pub/ directory.
What do you mean, 'kill -HUP the inet daemon'?
To "kill -HUP" a process means to restart that process (e.g. enter the command 'kill -HUP 1' to rerun the init process.)
Try this:
ps -e | grep inetd
you'll get something like:
103 0,0 00:00:00 inetd
now try this:
kill -HUP 103 (substitute the process ID you got above)
You just restarted inetd without have to reboot.
If you want to kill something by name (be carful if more that one process has the same name) without looking up the process ID, you can use 'killall' as in:
killall -HUP inetd
How do I enable ftp services on my host PC?
To allow ftp services on a Redhat Linux PC, edit the file /etc/xinetd.d/wu-ftpd and change the last line from:
disable = yes
todisable = no
31-Dec-2003: jlackey - update information related to the root file system
16-Aug-2002: jlackey
04-Feb-2005: jmalone - Reference updated infor for Debian-based roots
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Can I use telnet and ftp on my board?
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Posted - 23 May 2002 : 16:46:02
