What command will list only current connections including ip address and port numbers
What command will list only current connections including IP addresses and port?
Execute the netstat command alone to show a relatively simple list of all active TCP connections which, for each one, will show the local IP address (your computer), the foreign IP address (the other computer or network device), along with their respective port numbers, as well as the TCP state.
What does the netstat command show quizlet?
A TCP/IP utility that shows the status of each active connection.
What utility is used to verify that TCP IP is installed bound to the NIC configured correctly and communicating with the network?
A TCP/IP troubleshooting utility that can verify TCP/IP is installed, bound to the NIC, configured correctly, and communicating with the network. Really though, it just sends ICMP echo requests to see if it can contact an IP address. You just studied 14 terms!
What does the MX record do in a forward DNS zone?
What does the MX record do in a forward DNS zone? It identifies the e-mail server to be used for e-mail traffic for the domain.
What is Windows netstat command?
On Windows 10, netstat (network statistics) has been around for a long time, and it’s a command-line tool that you can use in Command Prompt to display statistics for all network connections. It allows you to understand open and connected ports to monitor and troubleshoot networking problems for system or applications.
What does the netstat a command show?
What does the netstat -a command show? The netstat -a command shows the status of all listening and non-listening sockets. You want to make sure no unneeded software packages are running on your Linux server.
What is DNS forward zone?
A forward lookup zone is a DNS zone in which hostname to IP address relations are stored. When a computer asks the IP address of a specific host name, the forward lookup zone is checked and the desired result is returned.
What is forward look and backward lookup DNS server?
Forward DNS lookup is using an Internet domain name to find an IP address. Reverse DNS lookup is using an Internet IP address to find a domain name.
What is CNAME record in domain?
A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content.
What is iterative query?
An iterative DNS query is a request for a website name or uniform resource locator (URL) that the domain name system (DNS) server responds to with the IP address from its zone file cache, if possible. If the server doesn’t have the IP address requested, it forwards the request on to another DNS server.
What is caching only server?
A cache-only server is a server that is not a master server for any zone other than the in-addr.arpa. domain. A cache-only server handles the same kind of queries from clients that authoritative name servers perform. But the cache-only server does not maintain any authoritative data itself.
What is a domain controller and what does it do?
A domain controller is a type of computer server that responds to security authentication requests and verifies users on the domain of a computer network. The controller is a gatekeeper for allowing host access to domain resources.
How DNS works step by step?
How Does the DNS Process Work?
- Step 1: Requesting Website Information.
- Step 2: Contact the Recursive DNS Servers.
- Step 3: Query the Authoritative DNS Servers.
- Step 4: Access the DNS Record.
- Step 5: Final DNS Step.
- Authoritative DNS Server.
- Recursive Nameserver.
What is DNS proxy server?
A DNS proxy allows you to transmit selected DNS queries through a tunnel interface, which prevents malicious users from learning about the internal configuration of a network.
What is DNS query?
A DNS query (also known as a DNS request) is a demand for information sent from a user’s computer (DNS client) to a DNS server. In most cases a DNS request is sent, to ask for the IP address associated with a domain name.
What protocol and port number does DNS use?
User Datagram Protocol
DNS uses the User Datagram Protocol (UDP) on port 53 to serve DNS queries. UDP is preferred because it is fast and has low overhead. A DNS query is a single UDP request from the DNS client followed by a single UDP reply from the server.
How do IP addresses and the DNS work together to enable network communication?
DNS translates domain names to IP addresses so browsers can load Internet resources. Each device connected to the Internet has a unique IP address which other machines use to find the device. DNS servers eliminate the need for humans to memorize IP addresses such as 192.168.
How do domain names work?
When you enter a domain name in your web browser, it first sends a request to a global network of servers that form the Domain Name System (DNS). These servers then look up for the name servers associated with the domain and forward the request to those name servers.
What is port 135 commonly used for?
Port 135 is used for RPC client-server communication; ports 139 and 445 are used for authentication and file sharing.
What is the port number of HTTP *?
80
Default Port Numbers
| Port | IP | Protocol |
|---|---|---|
| 25 | TCP | SMTP |
| 53 | TCP & UDP | DNS |
| 80 | TCP | HTTP |
| 161 | UDP | SNMP |
What port is ICMP?
Firewall rules for ICMP (TCP/UDP port 7)
What is 445 port used for?
Port 445 is a traditional Microsoft networking port with tie-ins to the original NetBIOS service found in earlier versions of Windows OSes. Today, port 445 is used by Microsoft Directory Services for Active Directory (AD) and for the Server Message Block (SMB) protocol over TCP/IP.