Configuring CISCO router for internet access in GNS3
Consider the following topology in GNS3 (click for full size)
The cloud network is connected to a physical interface on the host machine. This exposes the GNS3 network to the 192.168.10.0 network which is connected to the Internet via 192.168.10.1 gateway. It’s my home physical network basically.
The configuration on R1 is as follows. This will allow VirtualBox machines to connect to the Internet via R1 ‘inside’ interface at 192.168.20.254. The DNS server is located at 192.168.10.2.
! version 12.1 no service single-slot-reload-enable service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! memory-size iomem 15 ip subnet-zero ip cef ip name-server 192.168.10.2 ! ! interface FastEthernet0/0 ip address 192.168.10.40 255.255.255.0 ip nat outside duplex auto speed auto ! interface FastEthernet1/0 ip address 192.168.20.254 255.255.255.0 ip nat inside duplex auto speed auto ! ip default-gateway 192.168.10.1 ip nat inside source list 101 interface FastEthernet0/0 overload ip classless ip default-network 192.168.10.0 ip route 0.0.0.0 0.0.0.0 192.168.10.1 no ip http server ! access-list 101 permit ip 192.168.20.0 0.0.0.255 any ! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 login ! end
Add user to a Distribution Group using Powershell in Office 365 (Exchange Online)
If you are Global Admin but not a group owner you will get this error when trying to add user to a group:
Add-DistributionGroupMember -Identity allstaff -Member userID
You don't have sufficient permissions. This operation can only be performed by a manager of the group. + CategoryInfo : NotSpecified: (:) [Add-DistributionGroupMember], OperationRequiresGroupManagerException + FullyQualifiedErrorId : 9CE80A82,Microsoft.Exchange.Management.RecipientTasks.AddDistributionGroupMember
Add -BypassSecurityGroupManagerCheck to make it work:
Add-DistributionGroupMember -Identity allstaff -Member userID -BypassSecurityGroupManagerCheck
Display user permissions on a specific mailbox in Office 365/Exchange Online
This can be done by using the following command:




















