How to disable IPv6 on CentOS / RHEL 7

Disable IPv6 in kernel module (requires reboot) 1. Edit /etc/default/grub and add ipv6.disable=1 in line GRUB_CMDLINE_LINUX, e.g.: # cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT=”console” GRUB_CMDLINE_LINUX=”ipv6.disable=1 crashkernel=auto rhgb quiet” GRUB_DISABLE_RECOVERY=”true” 2. Regenerate a GRUB configuration file and overwrite existing one: # grub2-mkconfig -o /boot/grub2/grub.cfg 3. Restart system and verify no line “inet6” in “ip addr show” … Read more How to disable IPv6 on CentOS / RHEL 7

Get the multi-row tab bar back in Firefox MrOtherGuy/firefox-csshacks Aris-t2/CustomCSSforFx C:\Users\$user\AppData\Roaming\Comodo\IceDragon\Profiles\ $profile_name .default\chrome\userChrome.css C:\Users\$user\AppData\Roaming\Mozilla\Firefox\Profiles\$profile_name.default\chrome\ userChrome.css Sample userChrome.css for Firefox on Linux: sample userChrome.css for Firefox on Windows:

Mailbox export requests in Exchange 2010

Get-MailboxExportRequest to see all the requests Get-MailboxExportRequest -Status Completed | Remove-MailboxExportRequest to remove the completed. Get-MailboxExportRequest | Remove-MailboxExportRequest to remove all of them $mailboxes = get-mailbox foreach ($mailbox in $mailboxes) { new-mailboxexportrequest -mailbox $mailbox -FilePath \\server\share\$mailbox.pst }

Exchange 2010 Litigation Hold

Understanding Litigation Hold When a reasonable expectation of litigation exists, organizations are required to preserve electronically stored information (including e-mail) that’s relevant to the case. This expectation can occur before the specifics of the case are known, and preservation is often broad. Organizations may preserve all e-mail related to a specific topic, or all … Read more Exchange 2010 Litigation Hold

Integrating Mac OS X with Active Directory