SSH Login Email Alerts
The examples below send an email when someone logs into your server. For this to work, your server must be able to send mail using the mail command.
Open the file ~/.bash_profile in a text editor.
Append the following lines:
IP="$(echo $SSH_CONNECTION | cut -d " " -f 1)"
HOSTNAME=$(hostname)
NOW=$(date +"%e %b %Y, %a %r")
echo 'Someone from '$IP' logged into '$HOSTNAME' on '$NOW'.' | mail -s 'SSH Login Notification' YOUR_EMAIL_ADDRESSiptables port forwarding
I am port forwarding public ip x.x.x.x to private ip 192.168.200.200 .
iptables -A INPUT -i eth0 -p tcp –dport 5001 -m state –state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp –sport 5001 -m state –state ESTABLISHED -j ACCEPT
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp –dport 5001 -j DNAT –to-destination 192.168.200.200:5001
How to configure Cisco Unity Connection with CUCM with SCCP
I will be configuring very simple way without CSS and Partition with Default Basic Configuration.
Below are the Call flow From CUCM and Cisco Unity Connection.
Continue reading How to configure Cisco Unity Connection with CUCM with SCCP
How to configure UCCX Simple Auto Attendant
I am going to configure UCCX and CUCM for simple Auto Attendant using inbuilt script (aa.aef) in Cisco UCCX. I am not making any restriction so I am not using CSS and Partition to make it very simple .
we need to go through following steps .
Before going above steps UCCX basic configuration should be done as AXL, JTAPI and RMCM integration. As it is the POST UCCX configuration after installation .
Continue reading How to configure UCCX Simple Auto Attendant
How to configure MGCP on Cisco Router and CUCM
To configure MGCP on Cisco Router and CUCM below are the steps
1- Configure E1 or T1 Port to work with MGCP
2- Configure Router for MGCP to register on CUCM
3-Configure CUCM
For step 1
Follow the link https://www.gkhan.in/configure-cisco-router-t1-mgcp/
Step -2
mgcp
mgcp call-agent 192.168.100.11 service-type mgcp
mgcp bind control source-interface FastEthernet0/0.110
mgcp bind media source-interface FastEthernet0/0.110
mgcp dtmf-relay voip codec all mode out-of-band
Continue reading How to configure MGCP on Cisco Router and CUCM
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 RJ-48 Multiflex Trunk – T1/E1 on Slot 0 SubSlot 0“, DESCR: “VWIC2-1MFT-T1/E1 – 1-Port RJ-48 Multiflex Trunk – T1/E1”
Show inventory command shows you the location installed VVIC card in our case it is installed on Cisco Router Slot 0.
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
3 -rw- 2711 Sep 24 2017 17:45:02 +00:00 working24sept
255852544 bytes total (187912192 bytes free)
To read the content of file use command “more”
Continue reading How to read config files in Cisco Router or Switch
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
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}
Continue reading Get Virtual Machine list reside on VMware Datastore
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