07-26-2002
Tcp wrapper
I installed tcp wrappers version 7.6
and
modify my inetd.conf file from
ftp stream tcp6 nowait root /usr/sbin/in.ftpd in.ftpd
to
ftp stream tcp6 nowait root /usr/local/bin/tcpd /usr/sbin/in.ftpd -l
created /etc/hosts.allow file
and
modify it to only allow ftp from mydomain only
but this is denying ftp traffic from everywhere
including mydomain
every time I attempt to ftp it sends a warning message to syslog
warning: can't verify hostname: gethostbyname failed
I issued tcpdmatch in.ftpd 127.0.0.1 it report permit
can you help?
Thanks in Advance
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All, I have bunch of different versions of generic tools (like gcc, gdb, ddd etc) and these tools are compiled for different platforms (linux, solaris...)
I would like to mount all these tools into some common place (like /nfs/tools/bin) and have the wrapper to pull the latest version of the... (2 Replies)
Discussion started by: cantgetname
2 Replies
2. UNIX for Dummies Questions & Answers
I tried searching the forum ,,but couldn't locate ..Can anyone give me a link or some information about wrapper script. (1 Reply)
Discussion started by: thana
1 Replies
3. UNIX for Dummies Questions & Answers
Hi everyone,
I have this custom sudo package over which I want to write a wrapper using PERL. The wrapper will do some pre-work and then call the regular sudo package from within itself. But I am facing a peculiar problem here.
Once invoked, I am able to do the pre-work from within the... (1 Reply)
Discussion started by: garric
1 Replies
4. Shell Programming and Scripting
Hello,
I have the below wrapper script:
#!/usr/bin/perl -w
if ($^O eq 'MSWin32' ) {
$subnet = 'c:\path\to\subnet.txt';
}
else {
$subnet = '/opt/qip/wrapper-del-sub';
}
open FH1, 'jj-deleted-subnets.txt' or die "Can't open 'jj-deleted-subnets.txt'
... (0 Replies)
Discussion started by: richsark
0 Replies
5. UNIX for Dummies Questions & Answers
My IRC client does not support SSL, so I was wondering if there was any other way to encrypt the information between SSL clients on an IRC network, maybe by using SSH to enter the IRC program or something (it's a command-line program) and passing all the plain-text through SSH first. I tried... (0 Replies)
Discussion started by: guitarscn
0 Replies
6. Shell Programming and Scripting
Hi,
I am in need of way to facilitate this senerio in a perl script.
I have CLI ( command line interface) which I run like so:
kip-tepltist -u Xxx -p Xxx
Which produces tones of names from each template it found:
194Iselin-NJ
33-IDFLB-North-611-Woodward-8600 ... (5 Replies)
Discussion started by: richsark
5 Replies
7. Shell Programming and Scripting
I have this a code that I got help with for another task. I since tried to modify it to work on this task.
I need someones expertise to modify it slightly and I am not sure where to start or yet fully understand the logic.
I am trying to get a script to read my m-names.txt which has lots... (19 Replies)
Discussion started by: richsark
19 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I am a dummy and hear to the computation guys telling me,
"Oh! that is easy, you just write a wrapper to do all that bunch of stuff!" :cool:
Could someone tell me what is a wrapper? :rolleyes: The only one I know is Cling-Wrap for sandwiches.
A small elegant example would be very... (1 Reply)
Discussion started by: genehunter
1 Replies
9. UNIX for Dummies Questions & Answers
Have an HP 1000 j110a on Slackware 13.0.
Is there a wrapper I could use with or without CUPS to allow me to print to this device? I am aware of HPLIP and HPIJS both of which are included in 13.37 release I will be ordering but need something until it is delivered. (0 Replies)
Discussion started by: slak0
0 Replies
10. Solaris
I have problem with oracle solaris 10 running on oracle sparc T4-2 server.
Os information: 5.10 Generic_150400-03 sun4v sparc sun4v
Output from tcpstat.d script
TCP bytes: out outRetrans in inDup inUnorder
6833763 7300 98884 0... (2 Replies)
Discussion started by: insatiable1610
2 Replies
FTPD(8) System Manager's Manual FTPD(8)
NAME
ftpd, in.ftpd, setup.anonftp - DARPA Internet File Transfer Protocol server
SYNOPSIS
ftp stream tcp nowait root /usr/sbin/in.ftpd in.ftpd
tcpd ftp /usr/sbin/in.ftpd
DESCRIPTION
Ftpd is the DARPA Internet File Transfer Prototocol server process. The server uses the TCP protocol and listens at the port specified in
the ``ftp'' service specification; see services(5).
The ftp server currently supports the following ftp requests; case is not distinguished.
Request Description
ABOR abort previous command
ACCT specify account (ignored)
ALLO allocate storage (vacuously)
APPE append to a file
CDUP change to parent of current working directory
CWD change working directory
DELE delete a file
HELP give help information
LIST give list files in a directory (``ls -lA'')
MKD make a directory
MODE specify data transfer mode
NLST give name list of files in directory (``ls'')
NOOP do nothing
PASS specify password
PASV prepare for server-to-server transfer
PORT specify data connection port
PWD print the current working directory
QUIT terminate session
RETR retrieve a file
RMD remove a directory
RNFR specify rename-from file name
RNTO specify rename-to file name
STOR store a file
STOU store a file with a unique name
STRU specify data transfer structure
TYPE specify data transfer type
USER specify user name
XCUP change to parent of current working directory
XCWD change working directory
XMKD make a directory
XPWD print the current working directory
XRMD remove a directory
The remaining ftp requests specified in Internet RFC 959 are recognized, but not implemented.
The ftp server will abort an active file transfer only when the ABOR command is preceded by a Telnet "Interrupt Process" (IP) signal and a
Telnet "Synch" signal in the command Telnet stream, as described in Internet RFC 959.
Ftpd interprets file names according to the ``globbing'' conventions used by csh(1). This allows users to utilize the metacharacters
``*?[]{}~''.
Ftpd authenticates users according to three rules.
1) The user name must be in the password data base, /etc/passwd, and not have a null password. In this case a password must be pro-
vided by the client before any file operations may be performed.
2) The user name must not appear in the file /etc/ftpusers.
3) If the user name is ``anonymous'' or ``ftp'', an anonymous ftp account must be present in the password file (user ``ftp''). In this
case the user is allowed to log in by specifying any password (by convention this is given as the client host's name).
In the last case, ftpd takes special measures to restrict the client's access privileges. The server performs a chroot(2) command to the
home directory of the ``ftp'' user. In order that system security is not breached, it is recommended that the ``ftp'' subtree be con-
structed with care; the following rules are recommended.
~ftp) Make the home directory owned by ``ftp'' and unwritable by anyone.
~ftp/bin)
Make this directory owned by the super-user and unwritable by anyone. The program ls(1) must be present to support the list com-
mands. This program should have mode 111.
~ftp/etc)
Make this directory owned by the super-user and unwritable by anyone. The files passwd(5) and group(5) must be present for the ls
command to work properly. These files should be mode 444.
~ftp/pub)
Make this directory mode 755 and owned by the super-user. Create directories in it owned by users if those users want to manage an
anonymous ftp directory.
~ftp/pub/incoming)
Optionally create this directory for anonymous uploads. Make it mode 777. The FTP daemon will create files with mode 266, so
remote users can write a file, but only local users can do something with it.
The script setup.anonftp can be used to create or check an anonymous FTP tree.
SEE ALSO
ftp(1).
BUGS
The anonymous account is inherently dangerous and should avoided when possible.
FTPD(8)