There are lots of useful sites which helps the troubleshooting procedures. I listed some common tools or websites used by myself. Please let me know what you are using and I would like to try them and add them into this list.
1. Internet/Network Tools Portal
2. Internet/Network Speed Test
3. IP Subnet Calculator
4. Network Monitoring Related
5. DNS and Domain Name Related
6. BGP Toolkit
7. Your Public IP Address
8. Online Diagram Drawing Sites
9. Snmp tools
10. HTTP and HTTPS Check Tools
11. Email Diagnostic Tools
12. Proxy Sites
13. Remote Support / Online Meeting
14. Remote (SSH / Telnet) Access Tools
15. NTP Server
16. Portable Software
17. Online PDF Tools
There are some other related posts in this blog:
1. Internet/Network Tools Portal
Ping – Shows how long it takes for packets to reach host
1. Internet/Network Tools Portal
2. Internet/Network Speed Test
3. IP Subnet Calculator
4. Network Monitoring Related
5. DNS and Domain Name Related
6. BGP Toolkit
7. Your Public IP Address
8. Online Diagram Drawing Sites
9. Snmp tools
10. HTTP and HTTPS Check Tools
11. Email Diagnostic Tools
12. Proxy Sites
13. Remote Support / Online Meeting
14. Remote (SSH / Telnet) Access Tools
15. NTP Server
16. Portable Software
17. Online PDF Tools
There are some other related posts in this blog:
- My Top Network Security Tools
- My Top Internet / Network Tools
- My Top IT Tools
- Website and Tools for Blogger
Ping – Shows how long it takes for packets to reach host
Traceroute – Traces the route of packets to destination host from our server
DNS lookup – Look up DNS record
WHOIS – Lists contact info for an IP or domain
Port check – Tests if port is opened on specified IP
Reverse lookup – Gets hostname by IP address
Proxy checker – Detects a proxy server
Bandwidth meter – Detects your download speed from our server
Network calculator – Calculates subnet range by network mask
Network mask calculator – Calculates network mask by subnet range
Country by IP – Detects country by IP or hostname
Unit converter – Converts values from one unit to another
DNS lookup – Look up DNS record
WHOIS – Lists contact info for an IP or domain
Port check – Tests if port is opened on specified IP
Reverse lookup – Gets hostname by IP address
Proxy checker – Detects a proxy server
Bandwidth meter – Detects your download speed from our server
Network calculator – Calculates subnet range by network mask
Network mask calculator – Calculates network mask by subnet range
Country by IP – Detects country by IP or hostname
Unit converter – Converts values from one unit to another
DNS checks detailed dns information for a hostname ( www.facebook.com , www.yahoo.com , www.youtube.com )
IP-number checks ip number information such as dns reverse and forwards
route checks a specific routed prefix
AS numbers checks information on an AS-number
AS macros checks who belongs to an AS-macro
2. Internet/Network Speed Test
6. BGP Toolkit
16. Portable Software
17. Online PDF Tools
Before you click away to do some heavy network security reading, please leave a comment and share your favorite network and security tools so that I can add them to my list!
IP-number checks ip number information such as dns reverse and forwards
route checks a specific routed prefix
AS numbers checks information on an AS-number
AS macros checks who belongs to an AS-macro
2. Internet/Network Speed Test
- http://www.speedtest.net/
- http://speedcheck.rogers.com/en.html
- iperf from http://sourceforge.net/projects/iperf/
- Netflix Speed Test: fast.com: it tells you what your download speed is from Netflix’s servers.
3. IP Subnet Calculator
4. Network Monitoring Related
- http://www.monitor.us - Free all-in-one IT systems monitoring from the cloud
- Uptime Robot - It monitors your websites every 5 minutes and alerts you if your sites are down
- http://www.paessler.com/prtg - free 100 sensor to monitor your network devices. Remote probe works great.
- Solarwinds NPM
- OpManager from ManageEngine
5. DNS and Domain Name Related
- http://www.dnsstuff.com/
- http://my-addr.com/
- https://www.whatsmydns.net/
- http://www.cloudflare.com - protects and accelerates any website online. CloudFlare is designed to accelerate and secure any website.
- http://whois.domaintools.com/ - is the leader in domain name, DNS and Internet OSINT-based cyber threat intelligence and cybercrime forensics products and data.
6. BGP Toolkit
- http://bgp.he.net/
- http://routeserver.org/ (telnet into live BGP Routers and Check BGP table, if see BGP routing information is help you to isolate an issue you are facing. )
Choose any one of servers by clicking the spot and it will bring you to this kind of link: telnet://route-views.on.bb.telus.com
route-views.ab>show bgp paths 47102
Address Hash Refcount Metric Path
0x666C2980 2421 0 0 852 3257 4436 23498 47102 47102 i
route-views.ab>sh ip bgp 199.xxx.xxx.0
BGP routing table entry for 199.xxx.xxx.0/24, version 82108513
Bestpath Modifiers: deterministic-med
Paths: (1 available, best #1)
Not advertised to any peer
852 3257 4436 23498 47102 47102
154.11.98.17 from 154.11.98.17 (154.11.0.71)
Origin IGP, localpref 100, valid, external, best
Dampinfo: penalty 1304, flapped 4 times in 00:14:31
route-views.ab>show bgp paths 47102
Address Hash Refcount Metric Path
0x666C2980 2421 0 0 852 3257 4436 23498 47102 47102 i
route-views.ab>sh ip bgp 199.xxx.xxx.0
BGP routing table entry for 199.xxx.xxx.0/24, version 82108513
Bestpath Modifiers: deterministic-med
Paths: (1 available, best #1)
Not advertised to any peer
852 3257 4436 23498 47102 47102
154.11.98.17 from 154.11.98.17 (154.11.0.71)
Origin IGP, localpref 100, valid, external, best
Dampinfo: penalty 1304, flapped 4 times in 00:14:31
7. Your Public IP Address
8. Online Diagram Drawing Sites
- https://www.draw.io/ : it supports to save diagram to all kinds of Internet online drivers. So far, I found it is best to make network diagram. It is completely free to use for any purpose, there is no premium pay-for functionality, watermarking, or other limitations. You own the content you produce with draw.io and may use it for any purpose, including commercially.
- Gliffy :After trial, it is still free to use, but not able to create a new diagram. Existing diagrams will still be kept for editing. Gliffy marks all diagrams as public when a trial expires. Any diagrams created would remain in the account. Diagrams always remain in the account regardless of the status. Gliffy never moves or deletes diagrams. Free account have a limit of 2MB or 5 diagrams, but usually it is enough since you export to gliffy format to import it later.
- Lucid Chart. It can import /export visio format file. Free account will limit complexity to only 60 objects, three active documents, 25mb of Storage, not able to edit imported visio files, etc.
- http://asciiflow.com/
- SmartDraw : provides desktop version, not free. For Cloud , trial for only 7 days, no free usage.
- https://cloudcraft.co/ : Best for AWS diagrams. It also gives you a budget number for your AWS infrastructure. Please check this post.
9. Snmp tools
10. HTTP and HTTPS Check Tools
- http://www.alertra.com/articles/spotcheck_info/ Spot Check™ provides an easy way to demonstrate how we check from multiple locations and is also a good way to assess the current status of a Web server. The text or other data specified by the URL is loaded according to RFC 2616 (HTTP/1.1). Both HTTP and HTTPS (SSL over HTTP) protocols are supported.
- http://www.sslshopper.com/ssl-checker.html
- http://achecker.ca/checker/index.php
- http://www.webpagetest.org/
- https://www.browserling.com/ - Test website using different platform and broswer version.
11. Email Diagnostic Tools
12. Proxy Sites
13. Remote Support / Online Meeting
- https://zoom.us/
- http://www.packetix.net/en/secure/install/
- Teamviewer
- Ammyy Admin
- Sunlogin
- join.me
- Cisco WebEx
- http://www.spreed.com/
- http://vyew.com/
14. Remote (SSH / Telnet) Access Tools
- PuTTY: a free telnet/ssh client - chiark home page
- SecureCRT from Vandyke
- Poderosa from SourceForge
- More from http://alternativeto.net/software/securecrt/
15. NTP Server
17. Online PDF Tools
- Online PDF Editor - Limit 3 tasks per hour.
- pdfescape
Before you click away to do some heavy network security reading, please leave a comment and share your favorite network and security tools so that I can add them to my list!
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