Why did I choose the handle "lsattr_nix"?
The "lsattr" command displays the attributes of Linux files EXT2.
Linux files that have the flag set for "Immutable" can not be modified or deleted, even by "root" unless the flag is removed.
The immutable attribute can be identified using "lsattr".
If "i" is the out put for the attribute listing of a file it is unchangeable or immutable. See the picture above for an example.
Enjoy!
Looking at some of my study notes reminded me today, that not all network outages are man made. Elemental power is sometimes at work.
Air:
High Density winds and tornados
http://www.goes.noaa.gov/WINDS/index.html
Earth:
Earth quake Seismic Monitor
http://www.iris.edu/seismon/
Fire:
Fire warnings
http://www.spc.noaa.gov/products/fire_wx/
Water:
Huricanne watch
http://www.nhc.noaa.gov/
Tsunami Warning Center
http://www.prh.noaa.gov/ptwc/
Space:
Meteor showers, solar flares, auroras, and near-Earth asteroids
http://www.spaceweather.com/ and http://ssd.jpl.nasa.gov/
An interesting site is downforeveryoneorjustme.com when having trouble with a url.
Some packets, I just wont see every day. The Internet Traffic Archive has 4 million-packet traces of LAN and WAN traffic, 30 days of wide-area TCP connections, Six months of Web client traces and more.
The traces are a very helpful review of network traffic that I do not normally see on a daily basis.
It has been interesting identifying and reading packets that are slightly irregular.
The Internet network traffic by ACM SIGCOMM is at http://ita.ee.lbl.gov/html/traces.html
Enjoy!
Broadband, laptop, Malware, p2p , voip security and more. Onguardonline is a wonderful source for interactive security awareness education. These guys have clearly put some work into being creative using games, videos, and tools. Nicely done Onguardonline.
I thought about a time in my life, when my cellphone was used to store all my personal information. Then security thoughts entered the picture. Today I am laughing at myself.
National Crime Prevention Council has a nice cellphone safety guide.
If you want more advanced cellphone safety tips Computing Research Association has some good details.
Have fun!
I remember thinking a few years back, what is the basic Linksys Security Checklist for Ethernet DSL and Wireless routers?
The first place I checked was Linksys Learning Center. Very cool easy to understand security videos. Then I decided, I wanted to know a bit more information about the Linksys basic security. So I checked out a few forums: Afterdawn for basic wireless and for basic DSL linuxquestions.org
Enjoy!
