How to enable telnet on windows 7

In windows 7 Home/Professional version to enable telnet. Perform the following steps:
Go to Start Menu--> Control Panel--->Select the option Program and Features

.Click on the option Turn Windows Features on or OFF
Turn Telnet Client (Option ).

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Password Expiry notification for the users in zimbra 8.x within 7 Days for the email users

This Script will run as cron tab daily basis and it will alert the users for whom password is going to expire within 7 days. It will also alert admin for the users for whom password expired. Kindly replace the domain.com with your own domain name and the /opt/zimbra/postfix-2.10.3.2z/sbin/sendmail path to the actual path of postfix #!/bin/bash #Script for zimbra password expiry email notification. # Meant to be performed as daily cronjob run as zimbra user. # redirect output to a file to get a 'log file' of sorts. # Time taken of script; echo "$SECONDS Started on: $(date)" # Set variables: # First notification in days, then last warning: FIRST="7" LAST="3" # pass expiry in days, we are assuming passwd exiry is 150 Days POLICY="150" # Sent from: FROM="admin@domain.com" # Get all users - it should run once only. USERS=$(ionice -c3 /opt/zimbra/bin/zmprov -l gaa domain.com) #Todays date, in seconds: DATE...

SCRIPT TO SHOW INVALID LOGIN ATTEMPTS IN RED COLOR AND VALID LOGIN IN GREEN COLOR FOR ZIMBRA 8.x

Create a File by using #vi /usr/bin/watchaudit with the following contents tail -f /opt/zimbra/log/audit.log | awk ' /INFO/ {print "\033[32m" $0 "\033[39m"} /WARN/ {print "\033[31m" $0 "\033[39m"} ' Close and Save the File. Run the Watchaudit File in SSH Console . #chmod +x /usr/bin/watchaudit #/usr/bin/watchaudit

How DNS Works ? How Query works -Recursive and Iterative Queries for DNS Server

How DNS Works ? A DNS domain name is used in a program on the local computer. The request is then passed to the DNS Client service for resolution using locally cached information. If the queried name can be resolved, the query is answered and the process is completed. The local resolver cache can include name information obtained from two possible sources: If a Hosts file is configured locally, any host name-to-address mappings from that file are preloaded into the cache when the DNS Client service is started. For linux /unix the file is # vi /etc/hosts For windows : c:\Windows\System32\drivers\etc The file is hosts Resource records obtained in answered responses from previous DNS queries are added to the cache and kept for a period of time. If the query does not match an entry in the cache, the resolution process continues with the client querying a DNS server to resolve the name. The cache can be cleared using the comm...

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