What IP and/or MAC address information shouldn't be included on a forum post?
Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
What IP and/or MAC address information shouldn't be included on a forum post?
To diagnose issues, I might use ifconfig or arp or something similar. What output of these commands and other commands should I not include in a post to protect myself from hackers? For instance:
ifconfig's HWaddr?
ifconfig's inet addr? I expect it is fine if local, right?
ifconfig's inet6 addr? I expect it is fine if local, right?
arp's string after each device's IP (for instance, something like bla (192.168.1.10) at xx:xx:xx:xx:xx:xx[ether] on eth0)
Not sure the mac address would help in a topic but there are more than one mac address in the world that are the same. Not sure anyone could use it for anything. Usually the first three sets of numbers are all that are needed to id an issue.
In a very real sense your public side of your system is in constant state of attack. You have to secure you system from all of that. Bots are trying to access every device in the world on an automated scale. They already know your ip addres.
Bots are trying to access every device in the world on an automated scale. They already know your ip addres.
There's a big difference between "a bot has pinged NotionCommotion's IP before" and "a person with malcontent now knows that 23.54.121.33 belongs to NotionCommotion who's running an outdated CentOS 6.3 system with VNC listening to incoming connections on port 2343, SSH version 5.3 listening on port 8123, and [insert any other service NotionCommotion has revealed he uses in his 558 posts on this forum over the last 5 years]".
* all the above information has been made up on the fly
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.