This is what I guessed, backup of Cisco IOS and/or Cisco config files. That is precisely where my expertise in TFTP originates
To backup the IOS, you will have to touch a file (and give open permissions) to the same name of the file you are saving. When you do a 'write net' on the Cisco boxes, it will ask for the name/ip of the TFTP server AND the name of the file (the Cisco IOS gives a default). That file MUST exist in the TFTP directory of the server.
So before you do a 'write net' you much touch a file with the same name as the file you are writing. For example, on the server:
Code:
cd /etc/tftp
touch cisco-ios-dec-05-v11.03a
chmod 666 cisco-ios-dec-05-v11.03a
On the router you would then 'write net' file name, cisco-ios-dec-05-v11.03a. (use your own file names). The confusion most people have is that the file must exist in the TFTP directory in order to write it from a device, like the Cisco IOS. To read the file (get), you must know the exact name of the file you are 'getting'. Same is true for Cisco configurations:
Code:
cd /etc/tftp
touch router-bigmomma-new-access-lists-dec-06
chmod 666 router-bigmomma-new-access-lists-dec-06
I forget the exact Cisco syntax, so if you need help in that area, please login to the router from an X or other GUI telnet session and use the mouse to capture the screen (Cisco console) and upload to this thread. I can help you through the 'write net' and other commands between the Cisco IOS and your UNIX TFTP platform.
Hi,
Setting up print queue, using SMIT on AIX
And I have an option saying do I wish to make this a BOOTP/TFTP server. What exactly does this do?
Thanks (3 Replies)
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?
Thanks (3 Replies)
Hi everyone,
I am currently receiving an error on my console that reads something like:
<host> tftpd: socket (delay): Protocol not supported
I have done so much research into tftpd, i've looked everywhere to find out what this might be caused by...unfortunately i have Solaris 8, so there... (5 Replies)
RH 7.2
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:
in.tftpd:.10.151.2.6
But...when I attempt to tftp from... (1 Reply)
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
if i type atftpd by it self it gives me a set... (2 Replies)
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).
But when I try to install using
# boot net -s
I get the... (0 Replies)
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?
Thanks (1 Reply)
I know that IBM's official stance is that NIM does not work on etherchannel environment, but has anyone able to get around it?
I'm working on a p5-590 LPAR system, and the NIM master and clients are all on the same frame.
Any help is appreciated. (1 Reply)
I have setup nimol on a Fedora 9 machine. Nimol is installed and correctly configured and I have a client rs6000 (43p) declared in the dhcpd.conf file. all is running correctly and tftp is installed. I am monitoring /var/log/messages when I start the 43p and see the dhcp request come in and a reply... (0 Replies)
Discussion started by: johnf
0 Replies
LEARN ABOUT SUNOS
in.tftpd
in.tftpd(1M)in.tftpd(1M)NAME
in.tftpd, tftpd - Internet Trivial File Transfer Protocol server
SYNOPSIS
in.tftpd [-s] [homedir]
tftpd is a server that supports the Internet Trivial File Transfer Protocol (TFTP).
Before responding to a request, the server attempts to change its current directory to homedir; the default directory is /tftpboot.
The use of tftp does not require an account or password on the remote system. Due to the lack of authentication information, in.tftpd will
allow only publicly readable files to be accessed. Files may be written only if they already exist and are publicly writable. Note that
this extends the concept of "public" to include all users on all hosts that can be reached through the network. This may not be appropriate
on all systems, and its implications should be considered before enabling this service.
in.tftpd runs with the user ID and group ID set to [GU]ID_NOBODY under the assumption that no files exist with that owner or group. How-
ever, nothing checks this assumption or enforces this restriction.
-d Debug. When specified it sets the SO_DEBUG socket option.
-s Secure. When specified, the directory change to homedir must succeed. The daemon also changes its root directory to homedir.
The in.tftpd server is IPv6-enabled. See ip6(7P).
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWtftp |
+-----------------------------+-----------------------------+
svcs(1), tftp(1), inetadm(1M), inetd(1M), svcadm(1M), netconfig(4), attributes(5), smf(5), ip6(7P)
Malkin, G. and Harkin, A. RFC 2347, TFTP Option Extension. The Internet Society. May 1998
Malkin, G. and Harkin, A. RFC 2348, TFTP Blocksize Option. The Internet Society. May 1998
Malkin, G. and Harkin, A. RFC 2349, TFTP Timeout Interval and Transfer Size Options. The Internet Society. May 1998
Sollins, K.R. RFC 1350, The TFTP Protocol (Revision 2). Network Working Group. July 1992.
The tftpd server only acknowledges the transfer size option that is sent with a read request when the octet transfer mode is specified.
The in.tftpd.1m service is managed by the service management facility, smf(5), under the service identifier:
svc:/network/tftp/udp6:default
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). Responsibil-
ity for initiating and restarting this service is delegated to inetd(1M). Use inetadm(1M) to make configuration changes and to view config-
uration information for this service. The service's status can be queried using the svcs(1) command.
Unlike most smf(5) services, a manifest for the tftp service is not included in the system. To create one and enable this service, the
administrator should:
1. Edit /etc/inet/inetd.conf and uncomment the tftp entry.
2. Run /usr/sbin/inetconv.
After you run inetconv, the svc:/network/tftp/udp6:default service is created and enabled.
8 Mar 2005 in.tftpd(1M)