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03-31-2002 02:42 PM
03-31-2002 02:42 PM
Thanks again for your help in the past.
Solved! Go to Solution.
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03-31-2002 02:58 PM
03-31-2002 02:58 PM
Re: FTP from LAN to remote site
You can set it up to use passive mode where your computer starts the connection to port 20. This is usually easier to get the firewall to allow. See man ftp.
Ron
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03-31-2002 03:38 PM
03-31-2002 03:38 PM
Re: FTP from LAN to remote site
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04-01-2002 03:48 AM
04-01-2002 03:48 AM
Re: FTP from LAN to remote site
passive Toggle passive mode. If passive mode is turned on (default
is off), the ftp client will send a PASV command for all data
connections instead of the usual PORT command. The PASV com-
mand requests that the remote server open a port for the data
connection and return the address of that port. The remote
server listens on that port and the client connects to it.
When using the more traditional PORT command, the client lis-
tens on a port and sends that address to the remote server,
who connects back to it. Passive mode is useful when using
ftp through a gateway router or host that controls the direc-
tionality of traffic. (Note that though ftp servers are re-
quired to support the PASV command by RFC 1123, some do not.)
Ron
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04-01-2002 05:40 AM
04-01-2002 05:40 AM
Re: FTP from LAN to remote site
I'll keep trying to find passive mode on CuteFtp, or maybe get another FTP. Thanks.
Vern
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04-01-2002 01:03 PM
04-01-2002 01:03 PM
Re: FTP from LAN to remote site
Have you tried sftp? This is a service of ssh and it is a secure ftp. There is a free windows executable called sftp from the Putty web site (see attachment) that allows you to run it from a Windows PC or you can use sftp from a Linux system. It connects via port 22 just like ssh.
HTH
Martin
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04-02-2002 06:18 AM
04-02-2002 06:18 AM
Solution/usr/src/linux/net/ipv4/ip_masq_ftp.c
When you build and make your kernel you have to tell it yes when it asks you about Modules otherwise you will not get the .o file.
From:
http://www.linuxdoc.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap12sec104.html
"Also, don't forget that you'll need to build a modularized kernel and answer Yes to the Enable loadable module support (CONFIG_MODULES) option instead of a monolithic kernel to be able to use masquerading functions and modules like ip_masq_ftp.o on your Gateway server see the Linux Kernel section above in this book for more information. "
The ip_masq files are actually drivers loaded using the modprobe program. The file names start with ip_masq_. The files are normally found in the /lib/modules/version/ipv4 directory where the version subdirectory is the version number of kernel as in /lib/modules/2.2.15-2.5.0/ipv4.
The typical collection of masquerading modules includes:
ip_masq_autofw.o
ip_masq_cuseeme.o
ip_masq_ftp.o
ip_masq_irc.o
ip_masq_mfw.o
ip_masq_portfw.o
ip_masq_quake.o
ip_masq_raudio.o
ip_masq_user.o
ip_masq_vdolive.o
FTP, IRC, and Quake may be familiar, but protocols like CuSeeME streaming video may not be. Protocols installed but not used simply use up RAM. Most users will want FTP and IRC support.
These modules are used only if the masquerade support is set up using ipchains. The typical command line for loading these modules is:
/sbin/modprobe ip_masq_ftp
Note that the .o is not needed. A module does not need to be loaded if the associated application is not used. Loading a module that will not be used simply uses more memory, but does not impact ipchains.
Ron
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04-02-2002 07:55 AM
04-02-2002 07:55 AM