Contents tagged with ports
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Office 365 Endpoints, Ports and IP Addresses
https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide more
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Commonly Used Ports
Commonly Used Ports
These are the most commonly used ports, alongside their port numbers.
20: File Transfer Protocol (FTP) data channel.
21: File Transfer Protocol (FTP) control channel. The … more
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SQL Server Ports: How to Find
https://www.sqlshack.com/overview-of-sql-server-ports/
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SQL Server Ports
Using netstat is handy to research to see if a port is in use, but for this issue it is more direct to see what SQL Server thinks is going on, and fortunately there are some views that have the info … more
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Cloudflare Ports
https://support.cloudflare.com/hc/en-us/articles/200169156-Which-ports-will-Cloudflare-work-with-
https://blog.cloudflare.com/cloudflare-now-supporting-more-ports/
https://www.cloudflare.com/en-au/ … more
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Commonly Open Ports
TCP 20 and 21 (File Transfer Protocol, FTP)
TCP 22 (Secure Shell, SSH)
TCP 23 (Telnet)
TCP 25 (Simple Mail Transfer Protocol, SMTP)
TCP and UDP 53 (Domain Name System, DNS)
UDP 69 (Trivial … more
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Examine Ports in Use with Netstat
Use:
netstat -f -b
and use Sysinternals Process Explorer
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Changing Oracle Ports
https://docs.oracle.com/cd/B19306_01/install.102/b15660/app_port.htm
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Find and List All Listening Ports Using Command Line in Windows
netstat -a | findstr -i "listen"
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Cloudflare Ports
https://support.cloudflare.com/hc/en-us/articles/200169156-Which-ports-will-Cloudflare-work-with-
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VPN Ports
https://blogs.technet.microsoft.com/rrasblog/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through/
https://www.youtube.com/watch?v=m_wwqspLJSM more