MySQL ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'

FIX: ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock

Ajaxplorer 5 - Installation Guide - CentOS 6.3 / Установка Ajaxplorer 5 на CentOS 6.3

Installation:

SSL
http://ajaxplorer.info/f/topic/problem-with-installing-ajaxplorer-on-centos-6-3/
http://www.server-world.info/en/note?os=CentOS_6&p=ssl

Activate Share function

    It gives you possibility to share files and directories separately, and more than that - possibility to share files with people have not accounts in your Ajaxplorer system. The last means, you just tell the users that have accounts in your system how to use Share function and they are free to share anything they would like (of their files) to anyone.
    + can set the amount of days the link will be alive
    + can set the count of maximum downloads.
    + can set the password for the file you share (not possible for shared directory)

MS Exchange

Увеличение места учетной записи в MS Exchange

1.       В Exchange Management Console выбрать Recipient Configuration > Mailbox

2.       Выбираем пользователя, которому необходимо увеличить место

3.       Заходим в Properties, вкладка Mailbox Settings

4.       Выбираем Storage Quotas и убираем галку Use mailbox database default

Поиск устройства/хоста в сети через Cisco

Нам нужен PC с адресом 192.168.1.50

В cmd делаем: ping 192.168.1.50

Затем: arp -a

Находим нужный ip и его mac.

Например: 192.168.1.50   00-1e-68-00-00-00   динамический

На главном Cisco коммутаторе выполняем:

MAIN #sh mac address-table | include 001e.68

001e.6800.0000   dynamic ip,ipx,assigned,other  GigabitEthernet2/8

Видим, что нужный PC связан с портом GigabitEthernet2/8

MAIN #sh cdp neighbors | include 2/8

SW-2F-R03-08   Gig 2/8   131   S I   WS-C2960- Gig 0/3

А к GigabitEthernet2/8 подключён коммутатор SW-2F-R03-08. Подключаемся к ниму:

SW-2F-R03-08 #sh mac address-table | include 001e.68

   1   001e.6800.0000   DYNAMIC   Fa0/38

Нужный PC подключен к SW-2F-R03-08 порт Fa0/38

Understanding of IPV6 Mask

IPv6 is similar to IPv4, but it is structured so that all LANs have 64 bits of network prefix as opposed to the variable length of network prefix¹ that IPv4 networks have. All IPv6 networks have space for 18,446,744,073,709,551,616 IPv6 addresses.

Error while installing Exchange or any of its Service Packs - Setup encountered a problem while validating the state of Active Directory: could not find Active Directory site to shich this server belongs.

   
1) Open up AD Site and Services, you should see a container called Subnets.
2) Lets say you have a IP subnet 192.168.0.xxx, add this to the Subnets Container, might looks like 192.168.0.0/24.
3) Beside this you should see a site called Default-XXX something, add the subnet to this site and you are done.