Cisco Catalyst 3850 - line aux 0.

I was curios about why Cisco Catalyst 3850 has line aux 0 in “show run” output while the chassis doesn’t have AUX port at all.

Catalyst3850#sh run | s line aux
line aux 0
 stopbits 1
Catalyst3850#

Cisco TAC reply:

This was left over and there is no real purpose for this to be there, you can’t delete it from the switch since it is integrated in the code. This won’t influence in the operation of the switch.

It means you can add “no exec” just to make sure…

IOS-XE and MD5 file verification. [TESTED]

I was needed to download core dump file (.core.gz) from ASR1001. For some reason, FTP didn’t work, I didn’t attempts from VRF-aware management interface, so I had to have TFTP is in use. To verify the file before and after I used the following commands:

ASR1001#verify /md5 flash:/core/ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz
.....................................................................................................Done!
verify /md5 (bootflash:/core/ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz) = 4fa581dd2df1476eef9624bfcf88cd46

ASR1001#

To copy this file:

ASR1001#copy flash:/core/ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz tftp://192.168.1.1/
Address or name of remote host [192.168.1.1]?
Destination filename [ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz]?
!!!!!!!!!!!!!!!!!!!!!!!!!!!
6614390 bytes copied in 7.711 secs (857786 bytes/sec)
ASR1001#

To verify MD5 after copying using embedded in Windows 7 command:

c:\Temp>CertUtil -hashfile C:\TFTP\ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz MD5
MD5 hash of file C:\TEMP\ASR1001_RP_0_fman_fp_image_7420_1231952006.core.gz:
4f a5 81 dd 2d f1 47 6e ef 96 24 bf cf 88 cd 46
CertUtil: -hashfile command completed successfully.

c:Temp>

I did it. I finally back to MediWiki.

Congratulations to myself, I eventually did it - got back to MediaWiki from the worth blog engine ever - FlatPress, but I’m trying to find more lightweight solution still (Wiki based on flat files).

YAY!

APC Smart-UPS NMC - How to open a tech. support case.

• Download config.ini, data.txt, event.txt, debug.txt, dump.txt (if available, for example, in case of spontaneous restart) from NMC using FTP or SCP. Here is an example for FTP commands:

ftp 192.168.1.1
bin
hash
get config.ini
get data.txt
get event.txt
cd /dbg/
get debug.txt
get dump.txt
bye

• Fill in the form http://www.apc.com/support/contact/ask_apc.cfm, attach an archive with collected debug info. Wait for an email confirmation with case number.
• If it’s an emergency or you need to escalate existed case, make a call to hotline - 800-555-2725 - http://www.apc.com/site/support/index.cfm/contact-information/.

Acer Aspire One - How to reset to factory defaults. [TESTED]

Пуск > Все программы > Acer > Acer eRecovery Management > Восстановить > Восстановление заводских настроек операционной системы.

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