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General networking and troubleshooting tools.

Networking Tools

Courtesy page of practical network tools available free of charge on the Internet. Use the filter to list tools based upon categories that you may be interested in. Altaware, Inc. may also be able to provide evaluation hardware and software depending upon your needs and circumstances.

Altaware, Inc. makes no promises or guarantees for the tools or security of the external web pages.
  • EMail Tools
    This test will list MX records for a domain in priority order. The MX lookup is done directly against the domain's authoritative name server, so changes to MX Records should show up instantly. You can click Diagnostics , which will connect to the mail server, verify reverse DNS records, perform a simple Open Relay check and measure response time performance. You may also check each MX record (IP Address) against 117 DNS based blacklists . (Commonly called RBLs, DNSBLs)
    The SPF Surveyor is an SPF diagnostic tool that presents a graphical view of SPF records. The graphical view allows people to quickly identify which servers are authorized to send on behalf of a domain. (Note that this diagnostic tool focuses on domain-level authentication and largely ignores the portions of SPF that deal with the local parts of email addresses.)
    These tools are meant to help you deploy SPF records for your domain. They use an actual RFC 4408 compliant library (pyspf) for tests and will dynamically test for processing limit errors (no other testers I'm aware of do this). This site uses a caching DNS resolver, so for tests that use live DNS, results will be cached for the Time To Live of the DNS record. For most basic uses, these tests should be reasonably self explanatory. Advanced users may need, and probably want, some additional information on how these tools work.
    Check if an IP address appears on an Email blacklist.
    Microsoft TechNet info about Sender ID.
    SMTP (Simple Mail Transfer Protocol) diagnostics about an IP address.
    Cisco senderbase.org for checking IP address sender reputation.
    SendGrid reliable transactional Email sending service.
  • DNS Tools
    This test will list DNS records for a domain in priority order. The DNS lookup is done directly against the domain's authoritative name server, so changes to DNS Records should show up instantly. By default, the DNS lookup tool will return an IP address if you give it a name (e.g. www.example.com) If you give it an IP address it will return a hostname based on the reverse DNS lookup.
    DNS, tracert, IP info and other tools.
  • Management Tools
    Download a trial network monitoring trial for simple yet highly capable SNMP, up/down, bandwidth and other visibility. Use by more than 70% of the Fortune 100 companies. Includes more than 150,000 active installations of its products. Choose PRTG as your network monitoring tool.
    Free online tool for planning and validating wireless networking AP design plans.
  • Performance Tools
    The Internet Traffic Report monitors the flow of data around the world. It then displays a value between zero and 100. Higher values indicate faster and more reliable connections.
    Use speed test to determine your WAN/ISP connection speed.
    Several free tools from SolarWinds.
    Test a website page load time.
  • Info Tools
    Use this website from Palo Alto Networks to learn about various web applications, what their risk potential is, typical ports and other information.
    Use this tool to determine what your public IP address is.
    Another tool to determine what your public IP address is.
    General information about a public IP Address
    Lookup a URL categorization (e.g. Business) or IP address reputation via Palo Alto Networks test a URL site.
    Lookup a URL categorization (e.g. Business) or IP address reputation.
    BGP monitoring tool, free and pay version.
  • Security Tools
    Fortinet “test your metal” site to test your firewall/gateway and client settings against different formats of EICAR test sample.
    Test your network gateway and endpoint security against a standard EICAR malware test string, file or download.
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General networking and troubleshooting tools.