How to verify a certificate thru OCSP responder with Free tool OpenSSL

 To verify a certificates thru OCSP responder is more demanding in these days and here is simple steps to test OCSP responder from your network…

Continue Reading...

How to enable SNMP daemon on Linux system

1. Install SNMPD(Daemon) Linux_Server# apt-get install snmpd   2. Modifying a snmpd.conf file Linx_Server# cd /etc/snmp Linx_Server# cp snmpd.conf snmpd.conf.old Linx_Server# pico snmpd.conf    …

Continue Reading...

OID and MIB info of Zywall USG 100 from Zyxel

Here is list of OID and MIB information of Zywall USG 100 from Zyxel.   index: 1 [from value]—->lo (loopback interface (127.0.0.1)) index: 2 [from…

Continue Reading...

Automatic start VM guests when physical server is restarted

Tweet Automatic start VM guest OS, when physical host is restarted.   1. Check the following pictures      

Continue Reading...

Dynamic port-security issue on Cisco Catalyst 3550 with 12.2(52)

Tweet Dynamic port-security feature issue on Cisco Catalyst 3550 with c3550-ipbasek9-mz.122-52.SE.bin. Cisco Catalyst 3550 is still widely used although that is discontinuous model. While we…

Continue Reading...

Why 3 MAC addresses required for Cisco port-security with VoIP phone?

Why 3 MAC addresses required for Cisco port-security with VoIP phone? In general, port-security is turned on, the default number of allowed mac-addresses is 1….

Continue Reading...
password_recovery_pix501_1.png

How to recover a lost or corrupted password on Cisco PIX 501

Tweet 1. Check this link and follow up and if not clear… and check below comment on this page   http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_password_recovery09186a008009478b.shtml   2. Need to…

Continue Reading...
Power_Plug_Types.png

How to find a right UPS for Network devices

Here is some of tips to determine getting right UPS.   1. Selecting right UPS model – Use below link to find one you want…

Continue Reading...

How to recover Cisco IOS on catalyst switches

http://www.freeccnaworkbook.com/labs/section-2-basic-cisco-router-and-switch-management/lab-2-12-recovering-a-corrupt-cisco-ios-image-on-a-catalyst-switch/

Continue Reading...

EOL/EOS of Cisco Catalyst 6500 Series Switches

Tweet Click below link to find information about "EOL/EOS of Cisco Catalyst 6500 Series Switches" http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_end-of-life_notice0900aecd8035ece4.pdf   Cisco EOL/EOS Announcement RSS Page http://www.cisco.com/web/feeds/products/end_of_life_rss.xml

Continue Reading...

EOL/EOS of Cisco Catalyst 4500 Series Switches

Click below link to find information about "EOL/EOS of Cisco Catalyst 4500 Series Switches" http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_eol_notices_list.html   Cisco EOL/EOS Announcement RSS Page http://www.cisco.com/web/feeds/products/end_of_life_rss.xml    

Continue Reading...
Enable-SNMP-Windows-1.png

How to setup SNMP on Linux or Windows System

[ Configuring SNMP on Linux Systems ] 1. Install Net-SNMP by using software packaging management 2. Make sure snmpd processor is running; ls -A |…

Continue Reading...