Friday, January 15, 2010

Allowing Microsoft VPN through Cisco PIX


Symptom: When attempting to connect to a VPN server on the outside of the PIX it returns error 721 or 800, the computer failed to respond.


Resolution: 1) In order to PPTP through a PIX, you must have a one-to-one mapping from the external IP to an internal IP for type 47 GRE packets and port 1723. For example, for pptp add this: conduit permit gre host x.x.x.x any AND conduit permit tcp host x.x.x.x eq 1723. For l2tp over ipsec: conduit permit esp host x.x.x.x any, conduit permit udp host x.x.x.x eq 1701 any AND conduit permit udp host x.x.x.x eq 500 any.

2) If the PIX is V6.3(3) or above, you can enable PPTP fixup, fixup protocol pptp 1723.

Saturday, December 19, 2009

Symbol UPC Scanner

If your POS is not bringing up products that have short barcodes, and you find that you need to remove the leading digit and the trailing digit for them to come up, this can be fixed.

Download the manual for the scanner and find the codes to "Disable UPC-E Preamble" and "Disable UPC-E Check Digit".  Scan those codes, and that should resolve the issue.

Friday, October 16, 2009

Automated Software Installation

Ever wanted to be able to prep a new PC without having to individually download software packages and babysit the installation?  Check out Volery Easy PC Setup.

Tuesday, October 6, 2009

Setting a DNS server in Fedora

Setting a DNS server in Fedora is needlessly difficult.  Just edit /etc/sysconfig/network-scripts/ifcfg-eth0 and reboot.  Here's a sample:


PEERDNS=yes
HWADDR=00:0d:56:27:c5:d4
TYPE=Ethernet
IPV6INIT=no
DEVICE=eth0
MTU=1500
NETMASK=255.255.255.0
BROADCAST=192.168.255.255
IPADDR=192.168.0.2
NETWORK=192.168.0.0
USERCTL=no
ONBOOT=yes
GATEWAY=192.168.0.1
DNS1=x.x.x.x
DNS2=x.x.x.x

Turn off Autorun on USB drives

Should work for most removable storage.

http://blogulate.com/content/turn-off-autorun-on-usb-drives/

Sunday, October 4, 2009

Top 10 Web Collaboration Tools

10. Cc:Betty - Online email organizing service
9. MediaWiki - The software that powers Wikipedia
8. TimeBridge - Meeting scheduler and facilitator
7. Google Groups - Usenet for the web
6. TextFlow - Allows you to post a document and allow users to collaborat, mark it up, and track changes.
5. DimDim - Free online webinar and meeting platform similar to GoToMeeting
4. MindMeister - Cocktail napkin sketches for the web.
3. present.io - File-sharing service that allows up to 100 MB of files without signup or software.
2. Campfire - Collaborative chat platform
1. Zoho - Vast suite of online editing and group organization tools


http://lifehacker.com/5373339/top-10-web-collaboration-tools-that-arent-google-wave?skyline=true&s=i
Top 10 Web Collaboration tools (That aren't Google Wave)

Tuesday, September 29, 2009

Cisco PIX PPOE Client

This is the proper recipe for connecting to an ISP that requires PPPOE authentication.

ip address outside pppoe setroute
vpdn group ISP request dialout pppoe
vpdn group ISP localname dsl-username
vpdn group ISP ppp authentication pap
vpdn username dsl-username password dsl-password

You must be using PIX IOS version 6.2 or greater for this to work.