UnixSage

  • Back Plate Observations

    I got a BP/W after training. Like most I used a traditional “stab jacket” for training. It fit OK but It always never felt right. Now I will admit I probably could have done more tuning and maybe improved it some but after the pool work and the 4 open water checkout dives I was done with it. I am a big guy, 6’ 300+ lbs so that could have something to do with it.

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  • Cisco router support manual DST

    The Energy Policy Act of 2005 officially took effect March 11, 2007. This basically extends daylight saving time. The chart built into the most routers is not going to be correct. In lieu of code upgrade you can manually specify the start and stop times. The example below sets the router/switch so DST starting 2nd Sun in March and ending the 1st Sun in November.

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  • Typical ACLs on Edge Routers

    Add the ACLs into the router… This is not a dangerous step, nothing will happen until you apply it on the interface.

    configure terminal
    access-list 1 remark Anti Spof for Serial I/F
    access-list 1 deny   63.127.106.56 0.0.0.7
    access-list 1 deny   127.0.0.0 0.255.255.255
    access-list 1 deny   10.0.0.0 0.255.255.255
    access-list 1 deny   172.16.0.0 0.15.255.255
    access-list 1 deny   192.168.0.0 0.0.255.255
    access-list 1 permit any
    access-list 2 remark Access to Admin Interface
    access-list 2 permit 63.127.106.56 0.0.0.7
    access-list 2 deny   any
    [CTRL]+[Z]
    

    To verify the access lists:

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