Tech KakiTips and Tricks for Mac OS X, Windows, Linux and Open Source software.
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I have updated My MacBook Pro to Mac OS X Mavericks. Initially it working fine. After few week, i noticed that the WiFi wouldn’t work. When i clicked the wireless icon, it show the error Wi-Fi : No hardware installed.
To solve this problem, i tried to reset the System Management Controller (SMC) by removing the battery. Below are the steps:- Read the rest of this entry »
If you never setup Dell Sonicwall Appliances before, you sure do not know the default IP, username and password.
Below are the factory default administrator (admin) username, password and IP address for all categories of Dell SonicWALL appliances.
|
Product |
Default Username |
Default Password |
Default IP Address |
| SonicWALL FIREWALL (UTM) APPLIANCES |
admin |
password |
192.168.168.168 |
| SonicWALL CONTENT SECURITY MANAGER (CSM) APPLIANCES |
admin |
password |
192.168.168.168 |
| SonicWALL SMB SSL-VPN APPLIANCES |
admin |
password |
192.168.200.1 |
| SonicWALL Aventail EX Series SSL-VPN Appliances |
admin (AMC), |
Defined during |
192.168.0.10 |
| SonicWALL EMAIL SECURITY APPLIANCES |
admin |
password |
192.168.168.169 |
| SonicWALL CONTINUOUS DATA PROTECTION (CDP) APPLIANCES |
admin |
password |
192.168.168.169 |
|
SonicWALL SonicPoint appliance |
admin |
password |
192.168.1.20 |
I believe most of your used nslookup command to query particular DNS record. Sometime, the nslookup return result with “Non-authoritative answer” follow by a list of nameservers. What “Non-authoritative answer” referring to?
When we sending DNS query to DNS Server, DNS server can provides either an authoritative or a non-authoritative response to the client query.
Below are the differences between Authoritative Responses and Non-Authoritative Responses
Authoritative
– An authoritative response is one in which the server returns an answer that it knows is correct, because the request is directed to the authoritative server that manages the domain. An DNS server is authoritative when it hosts a primary or secondary copy of a DNS Zone.
Non-authoritative
– A non authoritative response is one in which the DNS server that contains the requested domain in its cache answers a query by using forwarders or root hints. Because the answer provided might not be accurate (only authoritative DNS server can issue that domain information), it is called a non-authoritative response.
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