185.73.23.133

As of: Apr 28, 2025 6:29pm UTC | Latest

Basic Information

Reverse DNS
ports-measurements.softsec.ruhr-uni-bochum.de
Forward DNS
ports.measurements.softsec.rub.de, ports-measurements.softsec.rub.de, ports-measurements.softsec.ruhr-uni-bochum.de, ports.measurements.softsec.ruhr-uni-bochum.de
Routing
185.73.23.0/24  via RUB-AS, DE (AS29484)
Services (3)
80/HTTP, 443/HTTP, 2222/SSH
Labels
Remote Access

HTTP 80/TCP
04/27/2025 20:58 UTC


Software

nginx 1.22.1

Details

http://185.73.23.133/
Status
200  OK
Body Hash
sha1:6dc8ac762fbfcd78c26eeb1c3854623a641a6776
HTML Title
Measurement Information and Usage Notice | Measurement Information
Response Body
      [![Ruhr University Bochum
Logo](/images/rub_cs.png)](https://informatik.rub.de) [![DFG Excellence
Cluster - Cyber Security in the Age of Large-scale
Adversaries](/images/casa.png)](https://casa.rub.de)

# Measurement Information and Usage Notice

This website is operated and maintained by researchers of the [Chair for
Software Security](https://informatik.rub.de/softsec/) at the [Faculty of
Computer Science](https://informatik.rub.de) at [Ruhr University
Bochum](https://rub.de).

Most likely, you are visiting this website because you have received requests
from our network range that you might consider an attack or scan. Please note
that the requests we are conducting from these IP addresses are benign and we
are not attacking you or anyone else.

At almost all times, we are running a variety of different experiments and
scans from our network to evaluate and assess the global characteristics of
the Internet and its security and privacy posture. Our current experiments are
detailed below.

We hope that the information below answers your immediate questions and ease
your concerns. However, we understand that they might not answer all your
questions. Therefore, if you wish to receive additional information about our
research projects impacting you or if you wish to be excluded from our
measurements, please reach out directly to us by email to
[[email protected]](mailto:[email protected]) with the
relevant information (source/destination IP address, address range, what has
impacted you, etc.). We will be more than happy to provide more information
about our research project and/or exclude you from our experiments through our
blocklist. Finally, please note that we store collected data for research
purposes only and that we only store aggregated and anonymous statistics
whenever possible.

# Current Measurements

  * Liveness checks for selected IPv4 and IPv6 address ranges and ports.
  * TLS handshakes for selected IPv4 and IPv6 address ranges and ports.
  * DNS queries for selected domains.

# Measurement Hosts

We currently perform measurements from the following hosts:

  * ports.measurements.softsec.rub.de (IPv4: 185.73.23.133)
    

HTTP 443/TCP
04/28/2025 14:59 UTC


Software

nginx 1.22.1

Details

https://185.73.23.133/
Status
200  OK
Body Hash
sha1:6dc8ac762fbfcd78c26eeb1c3854623a641a6776
HTML Title
Measurement Information and Usage Notice | Measurement Information
Response Body
      [![Ruhr University Bochum
Logo](/images/rub_cs.png)](https://informatik.rub.de) [![DFG Excellence
Cluster - Cyber Security in the Age of Large-scale
Adversaries](/images/casa.png)](https://casa.rub.de)

# Measurement Information and Usage Notice

This website is operated and maintained by researchers of the [Chair for
Software Security](https://informatik.rub.de/softsec/) at the [Faculty of
Computer Science](https://informatik.rub.de) at [Ruhr University
Bochum](https://rub.de).

Most likely, you are visiting this website because you have received requests
from our network range that you might consider an attack or scan. Please note
that the requests we are conducting from these IP addresses are benign and we
are not attacking you or anyone else.

At almost all times, we are running a variety of different experiments and
scans from our network to evaluate and assess the global characteristics of
the Internet and its security and privacy posture. Our current experiments are
detailed below.

We hope that the information below answers your immediate questions and ease
your concerns. However, we understand that they might not answer all your
questions. Therefore, if you wish to receive additional information about our
research projects impacting you or if you wish to be excluded from our
measurements, please reach out directly to us by email to
[[email protected]](mailto:[email protected]) with the
relevant information (source/destination IP address, address range, what has
impacted you, etc.). We will be more than happy to provide more information
about our research project and/or exclude you from our experiments through our
blocklist. Finally, please note that we store collected data for research
purposes only and that we only store aggregated and anonymous statistics
whenever possible.

# Current Measurements

  * Liveness checks for selected IPv4 and IPv6 address ranges and ports.
  * TLS handshakes for selected IPv4 and IPv6 address ranges and ports.
  * DNS queries for selected domains.

# Measurement Hosts

We currently perform measurements from the following hosts:

  * ports.measurements.softsec.rub.de (IPv4: 185.73.23.133)
    

TLS

Handshake
Version Selected
TLSv1_3
Cipher Selected
TLS_CHACHA20_POLY1305_SHA256
Certificate
Fingerprint
8f2f21367cb5084c941bd057e5ba908c1fde68b5740ff8822d89ef24bfeceb37
Subject
CN=ports.measurements.softsec.rub.de
Issuer
C=US, O=Let's Encrypt, CN=E5
Names
ports-measurements.softsec.rub.de, ports-measurements.softsec.ruhr-uni-bochum.de, ports.measurements.softsec.rub.de, ports.measurements.softsec.ruhr-uni-bochum.de
Fingerprint
JA3S
475c9302dc42b2751db9edcac3b74891
JA4S
t130200_1303_a56c5b993250

SSH 2222/TCP
04/27/2025 21:01 UTC

Remote Access

Details

Host Key
Algorithm
Unknown
Negotiated
Key Exchange
Unknown
Symmetric Cipher
Unknown [] Unknown []
MAC
Unknown [] Unknown []

Geographic Location

City
Bochum
State
North Rhine-Westphalia
Country
Germany (DE)
Coordinates
51.48165, 7.21648
Timezone
Europe/Berlin