Girl Geekette

HexEditing With VI

admin — Thu, 12 Apr 2012 15:13:09 +0000

Needing a good HexEditor in Linux? VI can do the job. Though it is not a true “hex mode” in Vi, it will accomplish the same method by stream vi’s buffer through the external program ‘xxd’. The following is the process to use

Open the file in VI. Hit escape and type:
:%!xxd [ to switch into hex mode ]

At the end, hit escape again and type:
:%!xxd -r [ to exit from hex mode ]

Hosts File Overwritten and Cisco AnyConnect

admin — Thu, 12 Apr 2012 15:09:03 +0000

Using RedHat Enterprise Linux at work, one of the things I have had to do is edit my hosts file in /etc/hosts.

The problem I started having was that my hosts file kept getting re-written over with a default file, so any changes I made disappeared.

Eventually after going through various hosts* files, I noticed there was a non-standard file in there called hosts.ac. Turns out, this is a hosts file that is created by Cisco’s AnyConnect and whatever is in this file rewrites my hosts file.

The quick fix? Make all the hosts file changes to the hosts.ac file. That way, it is copied over to the hosts file. The “true” fix.. well, I am still working on that one.

I even deleted the hosts.ac file and tried renaming it. But, nonetheless, if the Cisco AnyConnect program is restarted (it doesnt even have to connect, just restarted) it will rebuild the hosts.ac file yet again and you are back to square 1.

So for now, just edit the hosts.ac file and it will copy over to the hosts file.

*update*
Looking through /var/log/messages I did notice that there is a service I am curious about when starting up Cisco AC

acvpnui

Toolbox Time

admin — Tue, 17 Jan 2012 16:49:37 +0000

For some reason, whenever I am doing work on spyware and adware removal, or cleaning up windows, I can never think of all of the programs I use and recommend. So, I am going to add them here and a link to them. (eventually)

Must have’s for spyware/aware removal and Windows cleaning.

1. Malware Bytes
2. Combo Fix
3. CCleaner
4. * Hi-Jack this (be careful! can do damage if used wrong)

Combo fix Will look like it is not doing anything for a while, but at the end it will show a report. Then it is done.

*hi-Jack this – not for all users, only advanced ones. It can do damage if used incorrectly.

New Google Look

admin — Thu, 01 Dec 2011 16:59:35 +0000

New Google Look coming soon!
Here is what google is going tword – this look.

New Google Look on Chrome

((ps – I have not figured out yet how to change back.. so.. please dont hold me responsible if you change yours ))

If you use Chrome, Firefox, Safari or Internet Explorer 8+,
open google.com in a new tab then do the action for your browser:

Chrome’s JavaScript console (Ctrl+Shift+J)
Firefox’s Web Console (Ctrl+Shift+K)
Safari’s Web Inspector (how to do that?)
IE’s Developer Tools (press F12)

Find and select the “console” tab and paste the following code:

document.cookie=”PREF=ID=03fd476a699d6487:U=88e8716486ff1e5d:FF=0:LD=en:CR=2:TM=1322688084:LM=1322688085:S=McEsyvcXKMiVfGds; path=/; domain=.google.com”;window.location.reload();

Windows Vista Cannot Obtain IP Address

admin — Thu, 14 Jul 2011 16:05:43 +0000

http://support.microsoft.com/kb/928233/en-us

Windows Vista cannot obtain an IP Address from certain routers or from certain non-Microsoft DHCP servers

Consider the following scenario:

You connect a Windows Vista-based computer to a network.
A router or other device that is configured as a Dynamic Host Configuration Protocol (DHCP) server is configured on the network.
The router or the other device does not support the DHCP BROADCAST flag.

In this scenario, Windows Vista cannot obtain an IP address.

Wifi Overlay With Google Earth

admin — Mon, 16 May 2011 18:54:32 +0000

This is a small file of Wireelss Access Points detected using inSSIDer

AP Map overlay with Google Earth

Vista and Wind 7 NETSH and WAPs

admin — Mon, 16 May 2011 18:47:35 +0000

A handy windows tool to show the local Wireless Access Points.

netsh wlan show networks mode=bssid

win7 netsh

900 MHz Radios

admin — Sat, 14 May 2011 18:16:44 +0000

900s

A pile of 900 mHz radios.

LG Thrive P-506 USB and DUN Drivers

admin — Sun, 08 May 2011 11:40:23 +0000

Took me forever to find the drivers, but here they are so you can tether your Thrive and access it via USB

LGSmartPhone_ModemlinkDUNDrive_WHQL_ML_Ver_1.0

LGWindowsMobile_USBDriver_WHQL_ML_Ver_1.0

TTL Info and Default

admin — Tue, 22 Mar 2011 02:21:43 +0000

Requirements for Internet Hosts — Communication Layers (RFC 1122, R. Braden, Oct 89):

paragraph 3.2.1.7:

The IP layer MUST provide a means for the transport layer to set the TTL field of every datagram that is sent. When a fixed TTL value is used, it MUST be configurable. The current suggested value will be published in the “Assigned Numbers” RFC.

and

A fixed value must be at least big enough for the Internet “diameter,” i.e., the longest possible path. A reasonable value is about twice the diameter, to allow for continued Internet growth.

Assigned Numbers (RFC 1700, J. Reynolds, J. Postel, October 1994):
page 64:

IP TIME TO LIVE PARAMETER

The current recommended default time to live (TTL) for the
Internet Protocol (IP) [45,105] is 64.