Почему Пермь в UTC+6 это Etc/GMT-6
Submitted by MoiseevVI on 14 July, 2014 - 17:47Ох, сколько времени я пытался осмыслить эту вселенскую несправедливость:
"The special area of "Etc" is used for some administrative zones, particularly for "Etc/UTC" which represents Coordinated Universal Time. In order to conform with the POSIX style, those zone names beginning with "Etc/GMT" have their sign reversed from what most people expect. In this style, zones west of GMT have a positive sign and those east have a negative sign in their name (e.g "Etc/GMT-14" is 14 hours ahead/east of GMT.)"
Cisco Announces Intent to Acquire Tail-f Systems
Submitted by MoiseevVI on 7 July, 2014 - 11:38Cisco Announces Intent to Acquire Tail-f Systems http://newsroom.cisco.com/release/1438152
will IPV6 worse the situation?
Submitted by MoiseevVI on 30 June, 2014 - 10:47Из какой-то презентации циско на тему NAT64 в ASR:
"
- Today internet has almost 415554 IPV4 prefix which is already challenge to maintain in BGP table, how will IPV6 help in this
direction, will IPV6 worse the situation ?
- Yeah
no kidding...
That is rough.
LISP helps some, but honestly, it going to get much worse
"
Безопасность ВС. Лаба 8: GLBP
Submitted by MoiseevVI on 14 May, 2014 - 18:18Когда CRC и TCP чексуммы спорят
Submitted by MoiseevVI on 5 May, 2014 - 17:00"After an analysis we conclude that the checksum will fail to detect errors for roughly 1 in 16 million to 10 billion packets." http://www.ir.bbn.com/documents/articles/crc-sigcomm00.pdf
"In sending approximately 10 TB of "random" datasets, we observed 8847668 UDP checksum errors and 121 corruptions of the data due to mis-associated fragments."
Programming
Submitted by MoiseevVI on 5 May, 2014 - 16:55Most people don't even know what sysadmins do, but trust me, if they all took a lunch break at the same time they wouldn't make it to the deli before you ran out of bullets protecting your canned goods from roving bands of mutants.
Знания против рецептов
Submitted by MoiseevVI on 25 April, 2014 - 14:59Это здорово, когда ты обладаешь фундаментальными знаниями и способен генерировать "рецепты".
История создания Cisco CLI
Submitted by MoiseevVI on 17 April, 2014 - 12:56"You may curse the CLI, but if you used it prior to 9.21, you probably thank us for adding the functionality that exists today."
http://www.ccieflyer.com/2009-Feb-TSlattery.php
http://www.netcraftsmen.net/blogs/entry/the-history-of-the-cisco-cli.html
Структура интернет трафика
Submitted by MoiseevVI on 16 April, 2014 - 11:13Среднесуточное потребление трафика разных типов в мегабайтах
