Port 8123Polipo Proxy
Polipo is a lightweight caching and forwarding web proxy designed to speed up browsing by reusing network connections and reducing bandwidth consumption. It serves as an intermediary between web clients and servers, optimizing traffic and caching frequently accessed web resources. Its streamlined design makes it particularly suitable for embedded systems or situations where resource efficiency is critical..
- transport
- tcp
- in transit
- encrypted
- assignment
- official
- risk
- 5/10
- lookups
- 10,082
single transport
payload protected on the wire
registered with iana
caution
rank 459 of 993 · top 46%
Technical Details
what runs on :8123Polipo operates primarily as an HTTP and HTTPS proxy server, enabling clients to access web resources with improved latency and reduced data usage. It implements caching mechanisms that store fetched content, which speeds up repeated requests and decreases upstream bandwidth requirements. Polipo also supports pipelining and connection pooling, further enhancing responsiveness and reducing network overhead.
One notable feature of Polipo is its ability to normalize and filter HTTP requests and responses, improving cache hit ratios and simplifying proxying logic. It is designed to comply with HTTP/1.1 specifications, managing connection persistence and respecting cache control headers to optimize content delivery while adhering to protocol standards.
Polipo's lightweight nature makes it suitable for embedded Linux devices, low-resource servers, and personal use scenarios. Despite its minimalist footprint, it remains highly configurable, supporting custom access control, logging, and DNS proxying features. This flexibility facilitates its integration into a variety of network configurations, from personal computers to specialized network appliances.
Security Information
exposure of :8123risk score
5/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
web services averages 3.9 across 112 ports — this one sits 1.1 above.
in transit
encrypted
payloads are protected on the wire
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
Common vulnerabilities associated with Polipo and similar proxies include:
- Exposure of sensitive cached content if access controls are misconfigured
- Lack of robust authentication mechanisms, potentially allowing unauthorized use
- Susceptibility to man-in-the-middle attacks if SSL interception is improperly secured
- Potential for HTTP request smuggling or cache poisoning if input validation is inadequate
Mitigations to enhance Polipo deployments include:
- Enabling access control lists (ACLs) to restrict proxy usage to authorized clients
- Employing transport encryption (such as TLS tunnels) to protect data in transit
- Regularly updating to patched versions to address known vulnerabilities
- Hardening system configurations by disabling unnecessary features and tightly limiting network exposure
- Monitoring proxy logs for unusual activity that may indicate exploitation attempts
Related Ports
the 8 most looked-up other ports in web services — 112 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8888 | Sun Answerbook & Alt HTTP | TCP | Web Services | caution | 123.9k |
| :8000 | Intel Remote Desktop / Alternate HTTP Port | TCP | Web Services | safe | 84.3k |
| :8888 | NewsEDGE | TCPUDP | Web Services | caution | 83.3k |
| :8888 | HTTP Alternative Port | TCP | Web Services | caution | 76.5k |
| :8888 | GNUmp3d Streaming HTTP | TCP | Web Services | caution | 76.3k |
| :9080 | Groove RPC | TCPUDP | Web Services | caution | 70.8k |
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
| :80 | HTTP | TCPUDP | Web Services | caution | 67.3k |
risk mix of the 8 listed
- safe13%
- caution88%
0 of 8 encrypted