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Posts Tagged ‘console’

allow root ssh login solaris 11 express

July 27th, 2011 Daz 1 comment

 

Change SSHD to allow root login;

vi /etc/ssh/sshd_config
PermitRootLogin = yes

Allow remote logon for root user, comment out the following line;

vi /etc/default/login

 

#CONSOLE =/dev/login

rolemod -K type=normal root

Categories: Storage

Jumbo Frames on your vSphere ESXi box

March 2nd, 2010 Daz No comments

Continuing on from this http://sigtar.com/2010/02/04/vsphere-and-multipathing-iscsi/

you may want to implement jumbo frames to your iSCSI backend…

Enable jumbo frames on your iSCSI target and switches then complete the following on the ESXi hosts (iSCSI initiators)…

This to list your current switch details and port group names…

esxcfg-vswitch -l

The following to allow jumbo frames onto your vswtich (insert your vSwich in following)

esxcfg-vswtich -m 9000 vSwitch0

Then create your kernel port groups that you want to use for iscsi, my commands looked like this… (repeat for each iscsi kernel port you have) — note : DO NOT ADD ANY VMKERNEL(s) from the GUI, instead use the steps below

esxcfg-vswitch -A iSCSI vSwitch0

If you are using a tagged vlan you will also need to add the vlan tag to the above port group

esxcfg-vswitch -v 192 -p iSCSI vSwitch0

esxcfg-vmknic -a iSCSI -i 10.0.0.101 -n 255.255.0.0 -m 9000

To confirm you have set the MTU (frame size) correctely, run the following….

esxcfg-vmknic -l

you should see your iSCSI kernel ports with a MTU of 9000 all going well. Confirm connectivity using

vmkping –s 9000 10.0.0.10

Categories: Networking, Storage, Virtual

Cisco – Stop console messages

June 10th, 2009 Daz No comments

Sometimes when logged into a router or switch via the null modem (console port) the console messages make it hard to see the commands you are truing to run.

There is a way to turn off the messages on the console session. Log on to your switch router, enter into configuration terminal mode then type…

no logging console

Done

Categories: Networking