Articles by Scott Hebert

  1. Gotcha! Upgrading Catalyst to New Feature Set

    Posted on in Networking

    Error: The image in the archive which would be used to upgrade
    Error: system number 1 does not support the same feature set.
    

    I just got this error message while upgrading a Cisco Catalyst 3560 from 12.2(35)SE5 to 12.2(44)SE. The older version was IP …

  2. Cisco's New ip verify unicast source reachable-via

    Posted on in Networking

    Regret (photo by xymonau) id: 523790Oops! I guess I'm way behind the times.

    For quite a while, I've been using ip verify unicast reverse-path to prevent packets with spoofed source addresses from crossing my routers. Apparently, as of IOS 12.0 (12.4 is current as of this writing), that command has been replaced with …

  3. Find Cisco Serial Numbers with the IOS Command Line

    Posted on in Networking

    "How do I find a Cisco serial number remotely through the command line?"

    This is one of those frequently asked questions that I see over and over. So, here's the quick and dirty answer:

    You can find Cisco serial numbers from the IOS command line by using the show inventory …

  4. Asterisk WaitExten() Music on Hold Option Only Uses Default Class

    Posted on in voice

    vintage 1 (photo by coscurro) id: 780414This might be a bug with the particular version of Asterisk 1.2 I'm using, but it's pretty darn annoying. Hopefully, it doesn't effect you if you are using the latest version of 1.2 or 1.4.

    What I'm trying to do is play some background music while I …

  5. T.37 Store and Forward Fax and Cisco AS5300: Dial Peers

    Posted on in voice

    Fax (photo by zd) id: 722728Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.

    The final piece of the T.37 Store and Forward Fax configuration is the dial peers to handle the incoming fax and the outgoing email. I'll walk you through …

  6. TCL Onramp Script for T.37 Store and Forward Fax

    Posted on in voice

    Fax (photo by zd) id: 722728Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.

    Unfortunately, the Cisco AS5300 does not have the ability to handle incoming fax processing without the help of additional software. You can download the app_faxmail_onramp TCL script from the …

  7. T.37 Store and Forward Fax and Cisco AS5300: Full Configuration

    Posted on in voice

    !
    fax receive called-subscriber $d$
    fax interface-type fax-mail
    mta send server mail.example.com port 25
    mta send subject Incoming Fax Received
    mta send postmaster postmaster@example.com
    mta send mail-from hostname example.com
    mta send mail-from username $s$
    !
    call application voice onramp flash:app_faxmail_onramp.2.0.1.3.tcl
    !
    dial-peer …
  8. Enabling Vertical (\G) Output in the MySQL Client

    Posted on in Software

    g (photo by donsimon)One problem with the MySQL command line client is that queries with lots of columns tend to wrap crazily based on your terminal size. To overcome this, you can get a vertical output by terminating your queries with \G instead of ;. I find this format extremely helpful in cases where …

  9. Installing PDLMs for Cisco NBAR

    Posted on in Networking

    donkey (photo by alexkalina)I've talked about using Cisco <acronym title="Network-Based Application Recognition">NBAR</acronym> frequently (check the Related Posts section below for more articles). One thing I've never pointed out is that not all versions of Cisco <acronym title="Internetwork Operating System">IOS</acronym> come with all protocol descriptions built in.

    Not …

  10. Cisco ASA / PIX Logging Facilities

    Posted on in Networking

    Finland midnight sun (photo by mproe)When setting up a Cisco ASA or PIX to send logs to a remote syslog server, you need to specify which facility to use. This can cause a bit of disconnect since the syslog server configuration uses names and the logging facility command in the Cisco Adaptive Security Appliance Software …

  11. Looks Like I'm Back On AIM

    Posted on in Software

    AIM.com LogoMany months ago I made a conscience decision to use only Google Talk for instant messaging. By doing this, I really shut the door on several friends and family members that were tied to Yahoo! and AIM. It wasn't an easy decision, but I was really tired of having to …

  12. Our New Dell Vostro 1500

    Posted on in System Administration

    Dell Vostro 1500Hello from our new Dell Vostro 1500 laptop!

    We just got this laptop for my wife to use at home, but I thought I should spend a few minutes getting everything up and working (and blog about it). Generally speaking, I'm a Mac guy, but this laptop is pretty sweet …

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