Questions tagged [tftp]

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Force sending DHCP options

I have a lab spectrometer that boots using PXE from boot files stored on a computer. They exist inside a local network with the computer acting as both the DHCP and TFTP server. The spectrometer ...
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1 answer
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Can't get a tftp server working on Ubuntu 22.04

I had tftpf-hpa working on my Ubuntu server to send/receive images and configs from my Cisco devices. Today it is not working. The service won't start, even if I try it manually. It does not tell me ...
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With a Bridged ethernet connection to a virtual machine is the Host's firewall going to be passed through in-route to the vm's ip address?

Ok so some background: I have a linux virutal machine running a pxe server who's setup I copyied from my physical linux server that I setup in the past for booting a headless system. It works and ...
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DNSMASQ-TFTP failed sending file for PXE boot

2 month ago my PXE installation worked perfectly, now it can't send the file grubx64.efi to begin the PXE installation. juil. 08 08:03:05 install-server.my.domain dnsmasq[5913]: started, version 2.79 ...
1 vote
2 answers
795 views

Using a compressed initrd when pxe booting

I'm using netboot/pxeboot with grub. menuentry "Install Ubuntu 20.04" { set gfxpayload=keep echo 'Loading vmlinuz ...' linux /tftp/vmlinuz ip=dhcp netboot=nfs nfsroot=10.0.0.20:/data/...
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How to troubleshoot tftp issues with some (but not all) clients

I have a working PXE server using Puppet Razor (now end of lifed, but we still need it to work a little longer). It has built hundreds of systems for us. I can go to most systems here and manually ...
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1 answer
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Issue with TFTP and IPTables and (s)-NAT

I've some issues with TFTP download behind NAT using IPtables and i could really use your help. I'm familiar with networking pricipals, but pretty new to IPtables, so i'm sorry if i'm doing something ...
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PXE boot pmagic with wget or TFTP after kernel

I wish to boot parted magic by PXE. I have read this article on the topic: https://partedmagic.com/pxe/ where it states that you can either load the entire iso, prepare the squashfs file and load it ...
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2 answers
847 views

Differing TFTP (Ephemeral?) UDP Ports

I have a piece of hardware which I am attempting to PXE boot. Currently, it PXE boots, DHCP leases TCP/IP data to the end-point and then it goes to its "next-server" to TFTP over some iPXE ...
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1 answer
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How to serve TFTP content via script (PHP-like)?

I am looking for a way to serve TFTP requests with an output from a script (bash, PHP?) called with the TFTP request path as an argument. A simple TFTP equivalent of Apache+PHP. Something like PHP + ...
1 vote
1 answer
699 views

Can I determine if the SolarWinds TFTP server dated April 2019 is compromised?

SolarWinds has been in the news due to the hack of their servers. It is unclear how far back the compromise goes. The only product I have used from them is their free TFTP server. Has the "...
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1 answer
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CentOS 8 as NAT router with nft and firewalld - how to get it to pass TFTP?

I am trying to set up PXE booting (which requires TFTP) on one of my networking that is hiding behind a NAT router. My question is similar to many others around the 'Net, but all the answers I found ...
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3 answers
3k views

Can't connect to TFTP docker container

Im trying to set up a TFTP server in docker as a first step of setting up PXE booting, but I can't connect to it. I start the container using the command docker run --name tftp -p 0.0.0.0:69:69/udp -...
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2 answers
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Using TFTP in docker, getting a timeout

I have a tftp server running in a docker container. I am using this image and I tried different ones: https://hub.docker.com/r/jumanjiman/tftp-hpa/ . When I try to get a file from the tftp server, ...
0 votes
1 answer
888 views

PXE booting times out in tftp

I'm trying to make some (temporary) use of an old machine. It has no disks of its own, but has a boot-capable network interface (Intel's LANDesk 0.99b). I got it to obtain the IP-address and other ...
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ubuntu tftpd-hpa server times out

i'm trying to deploy a TFTP server on an Ubuntu machine to backup switche and router config, but i keep getting a timeout even thought i can see tftp traffic coming in. i have looked around, many ...
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cisco license install tftp no response from tftp server

I am trying to install a license through tftp in the CLI of a Cisco 2504 controller. My computer is a Mac Pro running Mojave version 10.14.6. I have enable the tftp server on my mac. When I do ...
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SG500 Boot Code Upgrade

I am trying to upgrade one of my switches it is an SG500 boot code 1.3.0.03. I have tried to tftp boot code 1.3.5 up to the switch but the tftp keeps giving me server aborted file not found. File is ...
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1 answer
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dnsmasq pxe boot not working

Maybe someone can point me into the right direction here I have a dnsmasq DHCP Server in a separate Subnet (10.17.131.42) and another Network that has NO local DHCP Server (10.33.0.0/16) The Switch ...
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2 answers
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What's the equivalence of pxelinux.0 and pxelinux.cfg/default configration for UEFI?

I use Pxe to servers with BIOS(legacy mode), which works perfectly. Set Legacy mode and boot servers from PXE, it would load pxelinux.0 and read config menus via TFTP from /var/lib/tftpboot/pxelinux....
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Unable to NAT TFTP traffic because iptables is not forwarding the return connection to the client despite TFTP helper creating an expectation

The Problem I have a TFTP server (Machine 'S') and a TFTP client (Machine 'C') on different subnets. They are connected via a router( Machine 'R'). All 3 machines are Debian 9/Stretch. The router is ...
1 vote
1 answer
3k views

Failing to PXE Boot UEFI Server

I've been having a lot of issues with UEFI boots lately. I have two VMs that I've been using for testing. One is running DHCP/TFTP (CentOS 7) and the other is a client set to UEFI boot. I have ...
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sendip IPv6 ICMP ff02::16

I would like to send the following packet out with the sendip program (or any other program): IPv6, destination address: FF02::16, source address: (mine) ICMPv6, type: 143 (Multicast Listener Report ...
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1 answer
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PXE Server Implementation Issues

I have an ESXi VM running a tftpd-hpa server on the latest version of Debian 9 for the network PXE environment. For testing purposes, I configured another VM to handle DHCP on Debian 9 using isc-dhcp-...
3 votes
2 answers
4k views

Centos 6/7 tftp server does not send reply

I am attempting to get a really simple TFTP server up and running for the purpose of working as an IPXE boot server. However everything I seem to do doesn't seem to work to get the server to be able ...
2 votes
2 answers
2k views

Is there a way to relate the mac address of a machine to it's hostname when deploying images over a network?

This is a os-agnostic question; When deploying to a large number of machines, the only thing you have to differentiate them with is a mac address; DHCP can assign an IP to each machine based on it's ...
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4 answers
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TFTP works localhost but not global

I have a TFTP server on Centos 7.4. The TFTP server is up and running and works well when trying to access a file, connecting on localhost. However, if I try to access the TFTP server from another ...
1 vote
1 answer
3k views

TFTP-hpa not logging in a docker container

I'm running tftpd-hpa on the ubuntu:16.04 base image. When I run this on a full distro it logs fine but inside a docker container there aren't any logs. It seems to be trying to log to /var/log/syslog ...
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TFTP Transfer Timed Out Centos7

I've been having an issue with any FTP in Linux since the dawn of its existence and everyone just tells me "Google it" or closes my thread because someone's already answered a "Similar Question" but ...
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Unable to mount root via NFS

I have an NFS server connected to a reconfigurable computer (with a BORPH system). I'm using minicom with "run netboot" to boot via DHCP+TFTP+NFS, and I see the following error: Sending DHCP requests ...
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758 views

TFTP Server for multiple vlans

I have a linux dhcp/tftp server with multiple vlans serving a CMTS. The gist of it is in the CMTS, I tell the cable modems on what vlan I want them to get their address and configuration file from. ...
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1 answer
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Windows - multiple concurrent unattended installations

Distribution Server and Software: Debian 8 TFTP Server SAMBA Server DHCP Server Right now we use following way for windows (2012) distribution to our servers: installation task inkomming edit dhcp ...
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2 votes
1 answer
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pxe and dhcp on dfferent subnets

Good Day Please help , i have a dhcp on 192.168.21.0/24 and pxe server on 192.168.1.0/24. Now i want to install hosts in 192.168.21.0/24 using this pxe tftp netboot on 192.168.1.0/24. My hosts in ...
3 votes
0 answers
569 views

Can't backup Cisco configuration with tftp

I get the following error: SW-AL710-1#copy running-config tftp: Address or name of remote host []? 10.0.1.130 Destination filename [sw-al710-1-confg]? %Error opening tftp://10.0.1.130/sw-al710-1-...
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1 answer
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pxe-e32 open timeout error

I'm trying to boot CoreOS on hp dl360 bare metal server. I've configured my PXE server similar to this link. Besides, My DHCP server is running on Cisco switch and I set next-server option to my PXE ...
2 votes
4 answers
10k views

TFTP requests Not being serviced

This may look like a duplicate question but I did my share of searching, but could not find any solution. I have created a tftp server, this server when accessed from a local tftp client, over a ...
3 votes
1 answer
2k views

TFTP: transfer time out on RHEL 6 server

I am hitting a wall here trying to get tftp to work using RHEL 6 as a server. The error, from the client, is simply "transfer timed out". On the server, I can see udp 69 traffic coming in from my ...
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4 votes
1 answer
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Separate Servers for TFTP and DHCP for PXE Boot

This seems like it should be simple, but I can't find any actual information: Is it possible to have two separate servers, one running dnsmasq doing DHCP while the TFTP (or HTTP) server is running on ...
2 votes
1 answer
8k views

How to diagnose/troubleshoot tftp timeout

I have 2 VMs. One is setup as a pxe server (dhcpd with a specific subnet and a tftpserver). The second VM is networked with 'vboxnet2' to first VM and it is able to get the DHCP IP as specified my VM1'...
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1 answer
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Catalyst 2960-X no xmodem or tftp transfer

I tried to upgrade the IOS on a Catalyst 2960-X stack with three members. The upgrade failed and left me with three switches without bootable files. So I connect to the rommon via console using ...
3 votes
1 answer
15k views

Linux: tftp not working, transfer timed out, what could be the reason?

I have a server which runs cobbler and tftp server. My task is to configure a read-write tftp server. tftp is configured through xinetd and the configuration file looks like so: service tftp { ...
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3 votes
1 answer
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PXE boot kernel panic

I am having trouble setting up a PXE boot server. I've got isc-dhcp-server running, tftp-hpa serves the files over tftp (verified works), and apache2 hosts the rootfs image. The PXE client seems to ...
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1 vote
1 answer
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TFTP boot file download aborted during PXE boot up

I'm using OpenDHCPServer together with OpenTFTPServer in order to try out network booting. My problem is after acquiring IP address client starts downloading the boot file and halts. Message in TFTP ...
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1 answer
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Searching for ubuntu installation media fails pxeboot

I'm setting up a pxe setup for my cluster. I'm using dnsmasq as the dhcp/tftp server, and try to deploy ubuntu server 14.04.2. I'm using apache2 as http server to serve the preseed and such. dnsmasq: ...
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Linux DHCP server to provide unique options to each DHCP request

I am running a DHCP server in CentOS 6.5 and in my network, 3 clients can issue an DHCP request. The host needs to send the address of the tftp server and also the name of a config file. The order in ...
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1 answer
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Client getting wrong option from DHCP server

I'm setting up a machine to load a Debian intallation with PXEBoot, following the guide on the Debian Wiki. I have the boot image sitting on a server, pxe.example.com, at /var/lib/tftpboot/debian-...
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TFTP running in boot2docker can't connect

I've asked this question over at the Unix Stack Exchange, but soon realised that the issue was not with docker, but with either VirtualBox or Windows, so I'm asking it here instead. I'm trying to ...
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1 answer
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dhcpd.conf for PXE/BOOTP boot not working

I'm trying to configure the dhcpd.conf file so that when I boot through the network using PXE / BOOTP, a bare metal server or a virtual machine (KVM) would get an IP address in the 10.0.2.100 to 10.0....
2 votes
1 answer
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Getting "Connection timed out" on a tftp server though it seems everything is configured correctly, what could be the reason?

I've just installed a cobbler (with tftp/dhcp) server on a CentOS 6.6 machine at work. I've configured tftp to run under xinetd and the conf file looks like so: service tftp { disable ...
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1 answer
942 views

Cobbler/TFTP: No filename or root path specified, but why?

I've installed a new Cobbler server and configured it as a DHCP /TFTP server. I've configured the /etc/dhcp/dhcpd.conf like so: [root@centolel ~]# cat /etc/dhcp/dhcpd.conf ddns-update-style interim; ...
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