By default when I installed mysql on openSUSE, root password for mysql access was blank. First thing then is to change password as this might pose security issue. First of all login to openSUSE using root account and then:
This is simple Lab environment I built when was working on IPsec VPN tunnel between our internal network environment and 3rd party vendor systems. As we had some issues with establishing IPsec communication, to make sure that everything is fine on my side I start replicating live environment in Lab. To build test environment quick I use GNS3 as platform to run Dynamips hypervisor for IOS. That speeds up whole process of preparation and testing.
In this article you can find description of parameters in rancid.conf. By changing parameters in this file you can impact the way RANCID will behave, collect and process collected information. You can also define type of version control repository and email notifications as well as many other option.
Quick installation how-to for Nagios on openSUSE 11.4 “Celadon” platform. Same procedure applies to other versions of opeSUSE platform. I’m using version 11.4 for my LAB purposes.
snmp-server group viewers v3 auth snmp-server user snmpView viewers v3 auth md5 uHNKmuLP0lXOp8ODFkmJ snmp-server group viewers v3 auth read viewConfig snmp-server view viewConfig system included snmp-server view viewConfig internet included snmp-server view viewConfig mib-2 included snmp-server view viewConfig cisco included snmp-server view viewConfig ciscoConfig included snmp-server view viewConfig ciscoImageMIB included snmp-server view viewConfig snmpMIB included
snmp-server group writers v3 auth snmp-server user snmpWrite writers v3 auth md5 jB7HCiNBoGsk5qgfasHQ snmp-server group writers v3 auth write writeConfig snmp-server view writeConfig system included snmp-server view writeConfig internet included snmp-server view writeConfig mib-2 included snmp-server view writeConfig cisco included snmp-server view writeConfig ciscoConfig included snmp-server view writeConfig ciscoImageMIB included snmp-server view writeConfig snmpMIB included
snmp-server group viewers v3 auth snmp-server user snmpView viewers v3 auth md5 uHNKmuLP0lXOp8ODFkmJ snmp-server host inside 0.0.0.0 version 3 snmpView
NOTE: Please keep in mind that certain ACLs might require modification in order to allow SNMP protocol access.
If you need to capture configuration of Windows-based DHCP server for documentation or review purposes, this might be handy:
netsh -r lab-dc-01 dhcp server dump > C:\dhcp-lab-dc-01.txt
NOTE: lab-dc-01 in example command is name of the Windows server which has DHCP installed.
Example DHCP server dump from Windows Server 2008 R2 you can see here. It contains one scope for subnet 172.16.90.0/24, option for DNS and default gateway defined.
Usually I tend to create DHCP server on Windows Server. However, sometimes there is no server on site. Only what I have are network devices, workstations and voip phones. In those cases I used to create DHCP server on switches. As environment I operate in contains mainly Cisco devices, each location has at least one or more Cisco Catalyst switches (2960 or 3560) it is possible to provide DHCP service using IOS features. Example contains DHCP configuration for network with different VLANs for data, voice and printers.
Below is short description and set of commands demonstrating how to setup:
Here is quick script which connects to Active Directory, reads all computer accounts from Organization Unit (OU) indicated in script and then pings all computers found in that OU. It might be handy if all server accounts are located in one OU.
Script I used as computer statup script pushed via GPO. It renames local Administrator to Admin and sets password for Admin account to one specified in script.
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Configuration snippet I use to enable SSH on Cisco 2811 ISR and Catalyst 3560, but it will work on all Cisco IOS devices with appropriate IOS image which allows SSH to be enabled (IOS which has k9 in image name contains crypto compnents which allow to enable SSH).
