<i>Network Toolbox</i> is your one stop shop for all the tools you need to troubleshoot your network on the go. <b>Whois: </b> ✔ Lookup Whois information for any domain right from your android device. ✔ Quickly check if a domain is available for registration by performing a Whois lookup ✔ Choose from any of 254 known whois servers, or add and query your own. ✔ Formatted Whois results to improve readability <b>DNS: </b> ✔ Forward and reverse DNS lookups. ✔ Supported DNS record types: A, AAAA, APL, CNAME, DNAME, MX, LOC, NS, PTR, RP, SOA, SPF, SRV, TXT <b>DNSBL / RBL Black List Check: </b> ✔ Check any host or IP against over 60 DNSBL / RBL servers ✔ Get TXT statistics for IP or domain from senderbase.org <b>Network Block Info (ARIN): </b> ✔ Get Network Block information for any host or IP. ✔ Choose which Regional Internet Registry(RIR) to query for Network Block Information <b>Ping: </b> ✔ Ping any host or IP. ✔ Also works on non-rooted devices from Android 4.3 <b>Port Scan: </b> ✔ Scan a host or IP for Open ports ✔ Scan progresses from Port 1 to 65535, but can be cancelled at any time. App will display results up to last scanned port. <b>External IP Address: </b> ✔ Find your external (Internet) IP address for the network you are currently connected to. <b>Geo Location: </b> ✔ Find the country, city, area code, region, metro, postal code, latitude and longitude of any IP address ✔ View location coordinates on a map <b>CIDR Calculator: </b> ✔ Determine start and end addresses, address count, broadcast and network addresses for a CIDR address in the format xx.xx.xx.xx/yy <b>Test Email Server: </b> ✔ Test your email server's configuration. Check rDNS and banner matches, server security and response times. ✔ Click here to read more about the RBL check, Geo IP and Email Server Test features: <a href="https://www.google.com/url?q=https://www.google.com/url?q%3Dhttp://goo.gl/2Yjh94%26sa%3DD%26usg%3DAFQjCNG1_aKdZOEkavVWedjEWAIen1QSIA&sa=D&usg=AFQjCNGxbVtL1I4R8axveQqKVslqPaYPHg" target="_blank">http://goo.gl/2Yjh94</a> <b>Daytime and Quote of the Day (QOTD): </b> ✔ Supports getting date and time from any server supporting the Daytime protocol (RFC 867). ✔ Supports reading Quote of the Day from servers supporting the QOTD protocol (RFC 865). <b>Other Features: </b> ✔ Extremely fast and light weight. ✔ Easily share results from all tools with other apps on your device. ✔ Allows text selection and copying of results ✔ Designed for Android 4.0 (ICS) but also works with older Android versions Based on the open source <i>JFreeWhois</i> project: code.google.com/p/jfreewhois/ Based on the open source <i>dnsjava</i> project: www.dnsjava.org </div> <div class="show-more-end">