Table of Contents
Can ASA be DNS server?
the answer is yes & no. Although the ASA will never be acting as a real DNS server, you can still apply a little trick with NAT that would make the ASA to result as your hosts DNS server.
What does Dhcpd Auto_config outside mean?
If it is configured as a DHCP client, then yes, the “dhcpd auto_config outside” is being used to pass on all the DNS, WINS, and domain information obtained from the DHCP client on the outside interface to the DHCP clients on the inside interface. Hope that helps.
What is DNS Transactionid?
The Transaction ID (transaction identifier) is a 16-bits random value chosen by the client. When a client sends a question to a DNS server, it remembers the question and its identifier. When a server returns an answer, it returns in the Transaction ID field the identifier chosen by the client.
What is the advantage of disabling DNS lookup?
If no DNS server is available, the user’s computer will hang while the lookup is performed. To decrease user delays if no DNS server is configured, disable the DNS lookup function on the Cisco router.
What is suspicious DNS query?
What are Suspicious DNS Query signatures? Suspicious DNS Query signatures are looking for DNS resolution to domains potentially associated with C2 traffic, which could be an indication of a breached machine.
What is DNS Guard Cisco ASA?
dns-guard is a security feature. It basically means that firewall will allow only one response for one dns request packet.
What happens if you disable DNS?
If you disable recursion in DNS, then your local DNS server might not resolve queries send to the external websites or the website it has no information in its server or cache.
Should You Disable DNS?
Why should I bother turning it off?” The reason is that inconsistent configuration between your home hosts and your local DNS servers can, and often does, cause leakage of DNS updates for private IP addresses to the global Internet. This leakage causes the following problems: To the Internet.
How to set up a VPN with Cisco?
Make sure the Cisco VPN Client is installed on your remote computer.
How to connect to Cisco ASA?
Connect the power supply with the power cable.
How to install Cisco SSL VPN Asa certificate?
Manually install an SSL certificate on my Cisco ASA 5500 VPN/Firewall. After your certificate request is approved, you can download your certificate from the SSL manager and install it on your Cisco Adaptive Security Appliance (ASA) 5500 VPN or firewall.. Find the directory on your server where certificate and key files are stored, then upload your intermediate certificate (gd_bundle.crt or
How to setup high availability on Cisco ASA?
Test that your active unit is passing traffic as expected by using FTP (for example) to send a file between hosts on different interfaces.