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So far donghowa has created 74 blog entries.

December 2018

A required disk image was missing

By | 2018-12-15T02:23:44+00:00 December 15th, 2018|Network, Tips, vSphere5.1|

vWLC couldn't be installed in vSphere6.7 But there is a way always.   C:\Users\Administrator>ovftool.exe --acceptAllEulas -ds="datastore1" --net:"VM Network"="VM Network" C:\Users\Administrator\Downloads\AIR_CTVM-K9_8_3_141_0_second.ova vi://vsphere/ Opening OVA source: C:\Users\Administrator\Downloads\AIR_CTVM-K9_8_3_141_0_second.ova The manifest validates Enter login information for target vi://10.x.x.227/ Username: [...]

Changes IOS for LAP in ROMMON

By | 2018-12-15T01:49:48+00:00 December 15th, 2018|Network, Tips|

places AP & TFTP Server in same network Changes TFTP Server IP to 10.0.0.2 and turn off all firewall features. put prepared LAP IOS image in TFTP folder and changes name to "ap3g1-k9w8-tar.default" => refers [...]

CredSSP encryption oracle remediation

By | 2018-12-15T00:47:51+00:00 December 15th, 2018|Windows|

Workaround Warning After you change the following setting, an unsecure connection is allowed that will expose the remote server to attacks. Follow the steps in this section carefully. Serious problems might occur if you modify the [...]

February 2018

Part 15. Attach SAS Storage

By | 2018-04-06T15:32:07+00:00 February 17th, 2018|Journey|

Storage Space is too slow. Because ethernet interface of servers that support Storage Space is only 1Gbps, The throughput is limited by 1Gbps and i think character of raid-5 reduces the throughput performance. Manager gave [...]

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