We recently ran into this problem wherein the DHCP MMC started throwing errors anytime we try to launch it. After a good length of troubleshooting, we found that the number of reservations on the DHCP were 87. Sounds crazy???
Author: admin
Add a SPF Resource Record in Windows 2003 DNS
The Sender ID Framework is a new authentication protocol that can be used to counter spoofing by people who send unsolicited commercial e-mail messages (spam). Spoofing is the practice of forging a sender's address on e-mail messages. Spoofing misleads e-mail recipients and makes them read and respond to deceptive e-mail messages. To safeguard Internet domain names, and to help e-mail recipients identify junk e-mail messages and phishing scams more effectively, administrators can publish SPF records in the public DNS.
SPF Resource Record – Sender Policy Framework
SPF record is a Sender Policy Framework resource record. This is defined as a regular TXT record type.
The SPF record are used to avoid spam emails. SPF record validates the mail server that delivers the email for a domain to check if it is actually an authorised server before accepting any email from it.
Load Balancing using SRV record in DNS
SRV records, also known as Service records in DNS helps clients find services in the domain. A best example of this is with the Windows Active Directory where the SRV records are used to locate the Domain Controllers.
SRV Record
A SRV record called as a Service record provides information on available services.
SNMP configuration on Cisco IOS for routers and switches
SNMP helps monitoring your network devices wherein it can help a Monitoring System to query the device about various system health and/or modify configurations based on the permission it has on the device or on the other hand, allow the device itself to send alerts (known as trap in SNMP) to the management system of any system issues like a PSU failure.
Kiwi CatTools – Backup and manage your network devices
Kiwi CatTools automates configuration backups and management on routers, switches and firewalls. It provides e-mail notification and compare reports highlighting config changes. Supports Telnet, SSH, TFTP and SNMP.