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If you notice any exits with return code 0x00000001, the following guide might help you.
Windows offers many tools for diagnosing problems on TCP / IP networks ( ping , telnet , pathping , etc.). But not all of them allow you to easily check the status or analyze the network ports on the remote server. Portqry.exe is a handy tool that you can use to check TCP / UDP port responses to remote hosts to diagnose problems with various network services and firewalls on TCP / IP networks. In most cases, the new Portqry utility is used as a slightly larger replacement for the telnet command, and unlike Telnet, you can also ensure that UDP ports are open.
Parse UDP / TCP Open Ranges With PortQry
The first version of PortQry, created by Windows Server 2003, did not work well on other versions of the operating system (newer Windows Server 2008), so the second budget version, PortQryV2, released your current version that you should be using today. (you can download PortQryV2 here).
Download and unpack the PortQryV2.exe archive. Run a command prompt in addition to switching to a directory with privileges, for example:
For example, to check the DNS server number for a consumer, you need to make sure 53 TCP and UDP ports are open. The syntax for the command term for checking ports is as follows:
PortQry -n server [-p protocol] || [-e -r || -o endpoint (s)]
- -n is the name or IP address of the server you are checking for availability;
- -e is also the port number to check (1 to 65535);
- -r is the port range to check (for example, 1:80);
- -p is actually the protocol used for validation. It can be UDP-tcp or BOTH (default is TCP).
- Listening – means that the port is open (connections are accepted), an unambiguous answer has been received from the Listener;
- No – Indicates that the target system does not have a policy (service) that allows human interaction on the specified port. PortQry acquired an ICMP “Destination Unreachable Port – Unreachable” response when checking a UDP port, and a TCP packet with a reset flag;
- Filtered – Indicates that PortQry did not receive a response from the specified port, or that the response was filtered. In other words, this port is not listening on target systems or accessingit is restricted due to a firewall or some system patch. By default, TCP ports are requested a third time and UDP ports are requested once.
In our current situation, the DNS server is clearly accessible from the client via TCP and UDP ports.
TCP Port (Domain Service 53): LISTENUDP Plugins (Domain Service 53): LISTEN
You can specify the order of ports using the -o attribute to check if they are available:
The following command scans for extensions to known TCP / IP port numbers and returns a list of ports detected by connections (works like a TCP port scanner):
You can save the end of the open ports check in a text file:
You can now specify the remote computer name and slot number at the PortQry interactive prompt:
To check the port on the specified server, press q and enter.
With some sort of -wport and -wpid arguments, you can monitor this state of the specified port (wport) or possibly all ports connected to the mentioned process (wpid) on the local host.
For example, you can see that the following command will be expected Reply with the specified local port within 10 minutes. (for example, RDP port 3389) and notifies the administrator type in case of a state change (a detailed log should be available in the LogFile.txt file). To stop monitoring ports, press Ctrl-C:
You can receive responses to open ports and active TCP / UDP connections bound to a computer on the local network:
PortQry Extended Services Open Port Status
PortQry has built-in backups for some network services. These are LDAP, remote procedure calls (RPC), SMTP / POP3 / IMAP4 email, FTP / snmp, TFTP, NetBIOS naming service, L2TP, etc. In addition to checking availability, the tool performs protocol-specific request logging. to call the service status.
For example, the following main command can be used to test access to the RPC Endpoint Mapper (TCP / 135) service, and to list the RPC endpoint names registered on the computer (including name, UUID, address) that they are … circled and the application with which they are associated).
TCP port 135 (epmap service): LISTIVANIEUsing an ephemeral source portQuerying the Endpoint Mapper Database ...Server response:UUID: d95afe72-a6d5-4259-822e-2c84da1ddb0dncacn_ip_tcp: 10.0.25.6 [49152]UUID: 8975497f-93f3-4376-9c9c-fd2277495c27 Service Frs2ncacn_ip_tcp: 10.0.25.6 [5722]UUID: remote APIs 6b5bd21e-528c-422c-af8c-a4079be4a448 Fwncacn_ip_tcp: 10.0.25.6 [63006]UUID: IPSec 12345678-1234-abcd-ef22-0123456789ab Policy Advisor Endpointncacn_ip_tcp: 10.0.25.6 [63006]UUID: 367abb81-9844-35f1-ad32-912345001003ncacn_ip_tcp: 10.0.25.6 [63002]UUID: 50cda2a3-574d-40b3-1d66-ee4aaa33a076ncacn_ip_tcp: 10.0.25.6 [56020]â € ¦ ..UUID: 3c4428c5-f0ab-448b-bda1-6ce01eb0a6d5 DHCP client endpointNcacn_ip_tcp: 10 lrpc.0.25.6 [49153]General evaluation criteria: 61==== End of RPC Endpoint Mapper Solution Request ====portqry.exe -n 10.0.25.6 -e 135 -dom TCP exits with return code 0x00000000.
Or you can fully test the availability and responsiveness of the SQL Server Browser Service running on Microsoft SQL Server:
UDP 1434 connection (ms-sql-m service): LISTEN or FILTERSending SQL Server Wonder on UDP Port 1434 ...Server response:ROM-SQL01 server nameInstance name No.Mssqlserver versiongrouped 15.0.2000.5TCP 53200Server name DBINVENTIsClustered rom-sql01Instance name No.Version 15.0.2000.5TCP end 1433==== Instinctive reaction to SQL Server query ====UDP port 1434 LISTEN
How are you As you can easily see, the PortQry tool displays not only the availability of port 1434 / UDP, but also the web SQL version and the instance names on the SQL server and their TCP ports. The first instance of DBINVENT targets the standard TCP / 1433 port, and the tiny MSSQLSERVER uses a fixed TCP / 53200 port from the RPC range.
You can query the SNMP port on the device by specifying the community control name:
If the TCP / 25 port is activated by the SMTP server, you can get a fixed SMTP banner:
Version Of The PortQuery GUI
PortQry was originally a console-only tool (CLI). To make it more convenient for users who do not want to use the instant command, Microsoft has developed a simple graphical interaction for portqry – PortQueryUI. In many cases, you can download PortQueryUI from the official Microsoft download site: PortQueryUI.
In fact, PortQueryUI is a graphical add-on for portqry that generates a command and displays the result in a graph window.
In addition to being functional, PortQueryUI contains several predefined sets as well as queries forchecking the availability of a particular popular Microsoft service:
- Domain and Trusts (ADDS Management on an Active Directory Domain Controller)
- Exchange Server
- SQL Server
- Network
- IP sec.
- Web meeting
My server
- 0 (0x00000000) – all connections have been established successfully and the port is available;
- 1 (0x00000001) – the specified port is not available or is being filtered;
- 2 (0x00000002 is a normal return code when evaluating UDP connection availability, since no ACK response is returned.
On Windows 10, you can use portqry to install all Chokolatey package managers with the following command:
Reviews. Unlike the Test-NetConnection PowerShell cmdlet, which can be used continuously to check for availability,created only by TCP ports, PortQry s
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