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1. Solaris
I am new to Solaris 10 and am having an issue with a Solaris 10 system, which has had the TFTP Enabled and the TFTP "root" directory created with the desired files loaded into it. What I need is to review the log for the TFTP connections or attempted connections to try and verify the get/put... (1 Reply)
Discussion started by: campbelldw
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2. UNIX for Dummies Questions & Answers
Hi,
I'm very new to Linux but have been muddling my way through quite happily until recently.
I'm trying to write a program in C++ which starts a new process using the execl command. I am trying to run the tftp process as follows:
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Hi,
I'm trying to run the tftp client on tsch shell and I get command not found, but on bash tftp ran fine, can anyone help me on how to run it on tsch?
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Hi
I am trying to do a network install of Solaris 10 08_07 onto a Sunfire T2000. I have configured all my network-boot-arguments on the client server (named sundb1). I have installed my image of Solaris on my install server (sun1).
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5. UNIX for Dummies Questions & Answers
ive been trying to enable a tftp service on a unix box
using the command atftpd --daemon
but when i scan the open ports using nmap it doesnt show that port 21 as up
does anyone know the reason...
ive tried /etc/init.d/atftpd start , it didnt work
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Is it possible to copy files between two computers with TFTP.And how? (1 Reply)
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7. Linux
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I am attempting to get tftp working but I'm having a problem. On the server, xinetd has libwrap options compiled in. I have a deny all policy in my hosts.deny file and the following entries in my hosts.allow file:
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Discussion started by: jalburger
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8. IP Networking
I have been hearing that this protocol offers faster throughput rate than FTP, is it true? If so, are there any compromise in reliability on data being sent? How do I set up a TFTP transfer instead of a FTP to download?
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Hi,
Setting up print queue, using SMIT on AIX
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10. UNIX for Dummies Questions & Answers
ok, I configured inetd.conf so that the tftp string
is not commented out, but I cannot get the process to start.
I'm running Solaris 5.8 and need some help.
Cabletron said that it's process is 3485, i tried to kill it, it's the wrong process. I started inetd again and still can't kill it.
i... (15 Replies)
Discussion started by: veitcha
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TFTP-PROXY(8) BSD System Manager's Manual TFTP-PROXY(8)
NAME
tftp-proxy -- Internet Trivial File Transfer Protocol proxy
SYNOPSIS
tftp-proxy [-v] [-w transwait]
DESCRIPTION
tftp-proxy is a proxy for the Internet Trivial File Transfer Protocol invoked by the inetd(8) internet server. TFTP connections should be
redirected to the proxy using the pf(4) rdr command, after which the proxy connects to the server on behalf of the client.
The proxy establishes a pf(4) rdr rule using the anchor facility to rewrite packets between the client and the server. Once the rule is
established, tftp-proxy forwards the initial request from the client to the server to begin the transfer. After transwait seconds, the pf(4)
NAT state is assumed to have been established and the rdr rule is deleted and the program exits. Once the transfer between the client and
the server is completed, the NAT state will naturally expire.
Assuming the TFTP command request is from $client to $server, the proxy connected to the server using the $proxy source address, and $port is
negotiated, tftp-proxy adds the following rule to the anchor:
rdr proto udp from $server to $proxy port $port -> $client
The options are as follows:
-v Log the connection and request information to syslogd(8).
-w transwait
Number of seconds to wait for the data transmission to begin before removing the pf(4) rdr rule. The default is 2 seconds.
CONFIGURATION
To make use of the proxy, pf.conf(5) needs the following rules. The anchors are mandatory. Adjust the rules as needed for your configura-
tion.
In the NAT section:
nat on $ext_if from $int_if -> ($ext_if:0)
no nat on $ext_if to port tftp
rdr-anchor "tftp-proxy/*"
rdr on $int_if proto udp from $lan to any port tftp ->
127.0.0.1 port 6969
In the filter section, an anchor must be added to hold the pass rules:
anchor "tftp-proxy/*"
inetd(8) must be configured to spawn the proxy on the port that packets are being forwarded to by pf(4). An example inetd.conf(5) entry fol-
lows:
127.0.0.1:6969 dgram udp wait root
/usr/libexec/tftp-proxy tftp-proxy
SEE ALSO
tftp(1), pf(4), pf.conf(5), ftp-proxy(8), inetd(8), syslogd(8), tftpd(8)
CAVEATS
tftp-proxy chroots to /var/empty and changes to user ``proxy'' to drop privileges.
BSD
November 28, 2005 BSD