Create a link LINK or DIR/TARGET to the specified TARGET(s)
-s Make symlinks instead of hardlinks
-f Remove existing destinations
-n Don't dereference symlinks - treat like normal file
-b Make a backup of the target (if exists) before link operation
-S SUF Use suffix instead of ~ when making backup files
-T Treat LINK as a file, not DIR
-v Verbose
Essentially something like ln -s /path/to/original /path/to/link
EDIT FYI motd lives in /etc on all sane Linux based anything.
You can use pretty much anything in here. But if you break it you buy it.
Joined: 08 May 2018 Posts: 14208 Location: Texas, USA
Posted: Thu Dec 09, 2021 17:19 Post subject:
Someone has never heard of echo, cat, and a few other Linux commands. I couldn't find the specific way to completely replace the file outside of using ln, but I don't think that will work in this case. It is possible to modify the motd without recompiling the firmware image, though.
That's rude and brutal, and it has to be done every boot...
Yes you have to remount after each reboot but
"rude" or "brutal" is nothing about it, I just made the complete directory /etc/ writable, there are other interesting things like unbound.
I don't know any other way (than mounting over it), unless you unpack the firmware image, modify it, repack it and flash it afterwards.
It's just a bit cumbersome that dd-wrt uses squashfs.
This contributes on the one hand to the security but also takes away the possibility of customization and makes everything a bit complicated.
This file should not be modified by users, it is static for a reason.
Take care now.
thought so
peoples should build their own FW iffin they want it to be custom of that sort
---
edit:
kinda sorta like the Debian logo when using 'neofetch'
it is easily changed and its developer don't mind but I never have cause it is just the whole idea of doing such a thing
Joined: 31 Jul 2021 Posts: 2146 Location: All over YOUR webs
Posted: Fri Dec 10, 2021 12:57 Post subject:
mrjcd wrote:
thought so
peoples should build their own FW iffin they want it to be custom of that sort
---
edit:
kinda sorta like the Debian logo when using 'neofetch'
it is easily changed and its developer don't mind but I never have cause it is just the whole idea of doing such a thing
The point is not to do this, no matter if you build it or not. Im pretty sure BS wont like reading this thread fyi.
Joined: 08 May 2018 Posts: 14208 Location: Texas, USA
Posted: Fri Dec 10, 2021 13:06 Post subject:
ho1Aetoo wrote:
kernel-panic69 wrote:
It is possible to modify the motd without recompiling the firmware image, though.
Your linux skills are always welcome here.
Can't wait to see how this works.
(apart from the way I have posted)
I didn't see your post before I commented. That is another way I wasn't even thinking of, but not one I use. Pretty easy to figure out how to brand the MOTD or change it completely, as you have shown or using the FMK as you have noted below.
ho1Aetoo wrote:
I don't know any other way (than mounting over it), unless you unpack the firmware image, modify it, repack it and flash it afterwards.
It's just a bit cumbersome that dd-wrt uses squashfs.
This contributes on the one hand to the security but also takes away the possibility of customization and makes everything a bit complicated.
I was hoping that you would've at least gone to the length of showing proof that echo and cat and other command line methods don't work (obviously).
the-joker wrote:
mrjcd wrote:
thought so
peoples should build their own FW iffin they want it to be custom of that sort
The point is not to do this, no matter if you build it or not. Im pretty sure BS wont like reading this thread fyi.
I could go into all of the in's, out's, and ethical uses of the GPL for profit, what to do and what not to do here. If people use and modify DD-WRT code, distribute their own custom firmware images, the proper thing to do is publish their work (and share a percentage of their income). That never happens, because the GPL doesn't specify to share the wealth, just the modified code that should include all original copyright and licensing information. The thing is, there are many devices that you can't support since the driver_repository requires an NDA to access; so you will likely only be supporting Broadcom devices, if anything at all. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
----------------------
Linux User #377467 counter.li.org / linuxcounter.net
Joined: 26 Mar 2013 Posts: 1856 Location: Hung Hom, Hong Kong
Posted: Fri Dec 10, 2021 15:20 Post subject:
ho1Aetoo wrote:
I don't know any other way (than mounting over it), unless you unpack the firmware image, modify it, repack it and flash it afterwards.
It's just a bit cumbersome that dd-wrt uses squashfs.
This contributes on the one hand to the security but also takes away the possibility of customization and makes everything a bit complicated.
For true security, the remount trick should not have worked. /etc should be well-guarded.
The squashfs is to secure the DD-WRT firmware core and its fundamental settings, I believe.
But then, when you install a true Linux distribution, you can alter everything! Is DD-WRT just a Linux distribution? Um... worth another discussion. The custom binary provided by router manufacturers might be the problem to call it just a distribution.
BTW, I haven't tried your trick though. _________________ Router: Asus RT-N18U (rev. A1)
Drink, Blink, Stretch! Live long and prosper! May the Force and farces be with you!
