Slashdot Mirror


Linux Distro For Linksys WRT54G

scubacuda writes "Here is a tiny Linux distro for the Linksys wrt54g (d/l the distro here). In just a few seconds, you can give your access point's ramdisk syslog, telnetd, httpd (with cgi-bin support), vi, snort, mount, insmod, rmmod, top, grep, etc." Interesting -- "The script installs strictly to the ram disk of the box. No permanent changes are made. If you mess something up, power-cycle it."

9 of 227 comments (clear)

  1. article in case of slashdotting... by Anonymous Coward · · Score: 5, Informative

    yeah i was looking and i hit refresh and his counter jumped about 200 hits in a couple seconds so heres the article in case slashdot kills another site:

    Jim Buzbee
    September 05 2003

    Mini wrt54g distribution Version 0.1

    This is a mini Linux distribution for the Linksys wrt54g. In about 20 seconds, you can install a small set of Linux tools to your access point's ramdisk.

    Upon completion of the installation, you will have a system with basic tools such as syslog, telnetd, httpd (with cgi-bin support), vi, snort, mount, insmod, rmmod, top, grep, etc.

    To install, modify the script wrt54g.sh for your ip address and password. By default the script uses Java to move files to the wrt54g. If you would prefer wget, uncomment the wget lines in the script. I had a problem with older version of wget translating escaped characters before passing the URL on to the server. Your mileage may vary.

    The distribution has been tested on firmware version v1.30.7, Jul. 8, 2003. The installation has been tested on Linux and OSX

    The script installs strictly to the ram disk of the box. No permanent changes are made. If you mess something up, power-cycle it.

    Upon successful execution of the script, you will be able to telnet to your box and start exploring its capabilities. Note that there is no login prompt, you telnet directly in as root. Be careful.

    An alternate web server is installed on port 8000 of the box.

    The nfs drivers are not loaded by default If you would like to mount a nfs disk, insmod the drivers from /var/modules/ in the following order : sunrpc.o, lockd.o, nfs.o then mount your disk.

    To run snort, execute the following command on the box : /var/bin/snort -c /var/etc/snort.conf &

    The snort configuration file should be changed for your network configuration and needs. Snort logs will be written to /var/log/snort

    If you wish to change the files sent to the box, untar distro.tar and add or subtract files. Normally you should not run the install script more than once for a power-cycle of the box. i.e. if you want to run the install again, reset the wrt54g first.

    I have attempted to limit all changes to the ram disk, but there are no guarantees that you will not damage your unit by using these tools.

    Download the distribution
    Visit my wrt54g snort page
    Thanks to Ross Jordan, C. J. Collier, Ben Grech and others who did the heavy lifting in figuring out how to get new code on the box

    Jim Buzbee jbuzbee@nyx.net

    consolevision roxors!

  2. Re:telnetd? by suwain_2 · · Score: 4, Informative

    If you read carefully, it logs you in directly as root -- you're never even prompted for a username / password. It's not meant as a publically-accessible box by any means. (Granted, wireless + root access to anyone seems a little scary...)

    ssh/telnet isn't an issue, in this case. It's silly to encrypt something when anyone can get root on it.

    --
    ________________________________________________
    suwain_2 :: quality slashdot p
  3. Sigh by curmudgeon · · Score: 4, Informative

    But still no linux driver for the corresponding WPC54G PCMCIA card?

  4. Re:ssh tunneling? bad idea use VPN by interiot · · Score: 5, Informative

    The "ssh tunnels are very bad performance" statement may be elaborated a bit more on this page titled "Why TCP Over TCP Is A Bad Idea".

  5. Re:Well this means... by SuperFlaco · · Score: 4, Informative

    Looks like Linksys is doing the right thing and providing the source now.

  6. Re:More constrained by memory by MbM · · Score: 4, Informative

    I tried an nfs mounted swapfile with only minimal success. It'd get further but it would go into some heavy swapping flooding the network, durring which time the access point was very unresponsive; just not practical for actual use.

    --
    - MbM
  7. Re:does it still function as an AP by klasikahl · · Score: 5, Informative

    It does, here.

  8. Words of Caution about the WRT54G by pridkett · · Score: 4, Informative

    I own one of these little guys and I must say it's a neat little box. However, please be aware of the following issues that you might run into with it:

    1) it runs quite hot. make sure it gets plenty of air. we had ours sitting on the carpet with the DSL modem on top and it would frequently over heat. Moving the modem off and setting the wrt54g on a board seemed to fix this.

    2) it requires that you have good wiring. you may be shocked to know this, but if you live in an old house (like many college students) your wiring has a good chance of being miswired. The wrt54g will not work with wiring faults (even though many devices work just fine). the solution is to put a good surge protector or UPS between the device and the outlet. this seems to fix everything.

    3) the dhcp implementation is a little funky and sometimes seems to reply with a DHCP NAK on an address request when it otherwise shouldn't.

    All that aside, it's a great little box. It works well with my 802.11b card in the laptop and manages the wired stuff just fine. I can't comment on 802.11g because there aren't any cards with linux support out there (except maybe the minipci card in the wrt54g, but that's a binary driver).

    I've gotten some interesting stuff to run on it, mainly some simple home automation stuff for a pervasive computing environment that was part of my research, but it's nice having everything together. Although, truthfully you're probably still better off with an EPIA board and a 256 meg stick of ram.

    --
    My Slashdot account is old enough to drink...
  9. Prices by nolife · · Score: 4, Informative

    Lowest price search results from pricegrabber.com. Lowest I could find on Pricewatch was $103 + shipping.

    Amazon has it for $100 after rebate with free shipping.

    There was a new firmware put out about 6 weeks ago. Here's the details.

    --
    Bad boys rape our young girls but Violet gives willingly.