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Old 03-18-2015, 09:44 AM   #1
wowy
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Registered: Mar 2015
Location: France
Distribution: Ubuntu 14.04
Posts: 61

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Inetd listening but no connection (ftp/Telnet)


Hello,

I try to use a ftp daemon and a Telnet daemon with inetd and the BusyBox v1.19.0 on a linux 2.6.24.

When running inetd and then checking what is listening with "netstat -an |grep LISTEN" i have :
Code:
netstat: /proc/net/tcp6: No such file or directory
netstat: /proc/net/udp6: No such file or directory
netstat: /proc/net/raw6: No such file or directory
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN

tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN

tcp        0      0 0.0.0.0:23              0.0.0.0:*               LISTEN
ftp port 21 and Telnet port 23 seems to be listening.

My inetd.conf file is :

Code:
#<service_name>    <sock_type>    <proto>    <flags> <user>     <server_path>     <args> 

21 stream tcp nowait root ftpd ftpd /etc
telnet            stream        tcp        nowait    root    /usr/sbin/telnetd
I have no rule in my hosts.deny so nothing should be stopped and i have no iptables firewall in place too.

When typing "ftp://ipofthetarget" in a web browser i have a error :

Code:
504 Gateway Timeout
Gateway timeout expired while waiting for server response.
And when trying to Telnet from another computer or "Telnet localhost" from the board i have :
Code:
# telnet 10.2.29.201
Trying 10.2.29.201...
connected to 10.2.29.201.
Escape character is '^]'

Connection closed by foreign host.
This would mean that the connection for Telnet exist but why is it closing ?

Thank you for your future answers !

UPDATE 1 :
If i try to run telnetd like this :
/usb/sbin/telnet -l /bin/sh
i can connect anonymously from another computer, not perfect because i would like a user/password but still of use.
The problem with the ftp daemon still exist.

UPDATE 2 :
Trying from Windows cmd or linux terminal : ftp ipofthetarget seems to work
Not perfect because i would like a user/password too but still of use.

I am still open for suggestion for the user/password thing. I am not deleting the thread in case someone interested about this exist.

Last edited by wowy; 03-18-2015 at 10:31 AM.
 
Old 03-19-2015, 06:26 AM   #2
JJJCR
Senior Member
 
Registered: Apr 2010
Posts: 1,104

Rep: Reputation: 181Reputation: 181
did some Googling Busybox is design for anonymous setup according to this link below:

http://comments.gmane.org/gmane.linux.busybox/41042

Text below from link above.

Quote:
Busybox ftpd is an anonymous ftpd, without access restrictions. I
suggest putting the files to be served in a separate directory, using a
chroot and running ftpd with a low privileged user (not as root), so ftp
access goes not to system related files.
 
Old 03-19-2015, 06:35 AM   #3
wowy
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Registered: Mar 2015
Location: France
Distribution: Ubuntu 14.04
Posts: 61

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by JJJCR View Post
did some Googling Busybox is design for anonymous setup according to this link below:

http://comments.gmane.org/gmane.linux.busybox/41042

Text below from link above.
Yes, i saw this too.

I want to find a ftp daemon with non anonymous possibility for armv5 but it seems to be a real battle.
When trying to cross compile vsftpd or bftpd i get a "applet not found" error when running them on my board.
I saw that the archlinuxarm project had a bftdp package for armv5 soemwhere in there package list but i don't know how to download it so i asked the question on their forum.
 
  


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