Add Telegram Contact
Add Telegram ContactManual - how to add Telegram contact

1. Install Telegram app if you don't have it yet

2. Sign in to Host-tracker and follow instructions on the page https://www.host-tracker.com/Contact/CreateTelegram

3. Click https://telegram.me/host_tracker_bot?start=new

4. Open link in Telegram app

5. Click the button "Start":

6. Click the button "Subscribe to Up/Down alerts about sites":

7. Click to the "Open" on the next screen, then name your contact, apply subscriptions and save:

  • CM.Glossary.ResponseTimeMonitoring
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"

Seems like a great service when you are having problems with your host.

"
- jay
Shellshock vulnerability online check

Considering the recently discovered Shellshock vulnerability, HostTracker has created a tool for testing it.

Check your server for vulnerability

How does it work?

It is developed for a Linux server with a web server installed on it. The algorithm is very simple. We consequently generate 4 http requests:

  • 1. Ordinary request
  • 2. The request tries, using vulneratility, post a "harmful" cookie which causes 2-seconds delay in respond to our special http request.
  • 3. The request tries, using vulneratility, post a "harmful" cookie which causes 4-seconds delay in respond to our special http request.
  • 4. Same as #3

How to understand the result?

We compare response time for all 4 requests. Three situation are possible:

  • 1. Vulnerability found. We may affirm that if the difference in responses is about 2 seconds for requests without cookie and with 2-second-delay cookie, as well as for requests with 2 and 4-second delay cookie. It means that our request was able to use the vulnerability and set these cookies.
  • 2. Vulnerability not found. All the requests have about the same response time. The cookies, likely, were not installed because there is no vulnerability.
  • 3. Uncertain situation. If the response time differs widely, without coincidence with preset by cookies delay, we can not say for sure. It could be if the server is under high load. To check this, we use two requests with same cookies (#3 and #4). If the response time for two same checks varies, we make a conclusion that the response time is not affected by cookies. At least, not only by them. So in this case our method can not detect vulnerability

Safety of checks

Our test can not damage your server. The risk consists of appearance of one extra-cookie, which is used only for our requests and can not affect normal work-flow of your site.

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