Author Archives: Gkhan

How to configure Cisco Router T1 for MGCP

Posted on September 24, 2017 by Gkhan

How to configure Cisco Router T1  for MGCP Below steps checked on  Cisco 2811 and 2911 Routers 1- Check the  VVIC  location R1#sh inventory NAME: “2811 chassis”, DESCR: “2811 chassis” PID: CISCO2811 , VID: V05 ,  NAME: “VWIC2-1MFT-T1/E1 – 1-Port … Continue reading →

Posted in Uncategorized | Tagged | Leave a comment

How to read config files in Cisco Router or Switch

Posted on September 24, 2017 by Gkhan

How to read config files in Cisco Router or Switch Check the name of the file and location. R1#dir Directory of flash:/ 1 -rw- 67929600 Dec 12 2016 02:58:20 +00:00 c2800nm-adventerprisek9-mz.151-4.M12a.bin 2 -rw- 1622 May 26 2017 16:54:46 +00:00 Default … Continue reading →

Posted in Uncategorized | Tagged | Leave a comment

how to configure Static IP on Centos 6

Posted on August 27, 2017 by Gkhan

how to configure Static IP on Centos 6 ## Configure eth0 # # vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=”eth0″ NM_CONTROLLED=”yes” ONBOOT=yes HWADDR=A4:BA:DB:37:F1:04 TYPE=Ethernet BOOTPROTO=static NAME=”System eth0″ UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 IPADDR=192.168.1.44 NETMASK=255.255.255.0

Posted in Linux | Tagged | Leave a comment

Get Virtual Machine list reside on VMware Datastore

Posted on August 6, 2017 by Gkhan

Get Virtual Machine list reside on VMware Datastore Virtual machine  reside on  datastore and you do not care in which cluster they are (Get-Datastore -Name ‘datastore_name’).Extensiondata.Vm|%{(Get-View -Id $_.toString()).name}

Posted in VMware | Tagged | Leave a comment

GL-inet allow clients access from other Network

Posted on July 31, 2017 by Gkhan

GL-inet allow clients ( behind the LAN ) access from other Network Edit the firewall add following lines vi /etc/config/firewall config forwarding option dest ‘lan’ option src ‘VPN_client’ Restart firewall service /etc/init.d/firewall restart  

Posted in Uncategorized | Tagged | Leave a comment

Protect your Asterisk PBX server from Black listed IP address

Posted on July 27, 2017 by Gkhan

Protect your Asterisk PBX server from Black listed IP address VoIPBL is a distributed VoIP blacklist that is aimed to protects against VoIP Fraud and minimizing abuse for network that have publicly accessible PBX’s. For more details http://www.voipbl.org/ For Asterisk PBX  you  need to install Fail2ban. This … Continue reading →

Posted in Uncategorized | Tagged | Leave a comment

How configure crontab in ESXi to schedule a job every 5 min

Posted on July 16, 2017 by Gkhan

How configure crontab in ESXi to schedule a job every 5 min For scheduling a command or script every 5 min in ESXi we need to edit following file /var/spool/cron/crontabs/root vi /var/spool/cron/crontabs/root #min hour day mon dow command 1 1 * … Continue reading →

Posted in VMware | Tagged | Leave a comment

How to remove the ESXi web welcome page

Posted on July 12, 2017 by Gkhan

How to remove the ESXi web welcome page For any reason if you want to change VMware ESXi welcome page. Follow the following steps . Rename the following page /usr/lib/vmware/hostd/docroot/index.html create new index.html page if you want to redirect your … Continue reading →

Posted in VMware | Tagged | Leave a comment

VMware ESX / ESXi services restarting

Posted on July 12, 2017 by Gkhan

VMware ESX / ESXi services restarting Restart the ESXi host daemon /etc/init.d/hostd restart Restart vCenter Agent services /etc/init.d/vpxa restart

Posted in Uncategorized | Tagged | Leave a comment

VMware ESXi Datastores refresh issue incorrect free space

Posted on July 12, 2017 by Gkhan

VMware ESXi Datastores refresh issue incorrect free space We do manual datastore scan or HBA  scan to show the correct free space . We can change the refresh interval manually to edit config.xml file in esxi host. To change the … Continue reading →

Posted in VMware | Tagged | Leave a comment