[Solved] Network ftp errors

Question

Hello.
After updating Arch a couple weeks back, I was unable to FTP to other local PCs. I do not, and have not ever had internet connectivity through any ethernet means, but recently I have started to use an old ethernet hub to ftp to other computers of mine.
I dual boot Windows. All I have to do is plug in the ethernet hub, and Windows detects it setting up the dhcp address automatically.
In Arch Linux, I had to enter the following command after I plugged the ethernet cable into the router, or the power supply into the router.
/etc/rc.d/network start
Or... if I had been using my USB modem (my only internet means), I unplugged it, and ran this.
/etc/rc.d/network restart
The problem is that after the update, this is the message I'm getting when attempting to prepare to ftp (through gftp).
# /etc/rc.d/network restart
Warning: This functionality is deprecated.
Please refer to /etc/rc.conf on how to define a single wired
connection, or use a utility such as netcfg.
:: Stopping Network [FAIL]
Warning: This functionality is deprecated.
Please refer to /etc/rc.conf on how to define a single wired
connection, or use a utility such as netcfg.
:: Starting Network [BUSY] /etc/rc.d/network: line 68: /sbin/ifconfig: No such file or directory
/etc/rc.d/network: line 76: /sbin/dhcpcd: No such file or directory
Any ideas how I can get FTP functionality back? No, I do not have a set ethernet based internet connection...
Last edited by Who'sThere? (2011-07-29 22:36:12)

Answer 1

The problem is that your Ethernet card has no Internet address
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 00:11:85:68:26:5a brd ff:ff:ff:ff:ff:ff
you wrote:I thought that hub, and router, were interchangeable terms?
Not really, but the terms have become blurred.  Here are my definitions:
A hub is promiscuous.  It copies all traffic on one port to all of the other ports.  All machines on a hub see all traffic for all other machines, and the whole network runs at the speed of the slowest device.  Hubs are cheap.  They are really handy for using sniffing tools because of the promiscuity.
A switch takes note of the addresses attached to a particular port and remembers them for later.  Latter, if it is trying to forward a packet and it knows to which port the destination machine is attached, it will send the packet to that port only without bothering the devices on other ports.  Switches can also usually buffer things to allow different speed devices on different ports.
A router is like a switch, except that it can be programmed with routing information without having to depend solely on discovery;  this allows for things such as port forwarding.  Modern routers often include things like DNS servers, DHCP servers, QoS, NTP, etc... Routers often keep logs as to their operation.
I had asked because I want to understand how your wired adapter might be getting an address.  Since it is a router, it probably has a DHCP server (whereas hubs will not).
Try this (as root):
eth0 up
dhcpcd eth0
Then, see if it works.
Last edited by ewaller (2011-07-03 04:43:14)