Port 3632DistCC Distributed Compiler
Port 3632 is primarily used by DistCC, a distributed C/C++ compiler system that lets developers speed up compilation by sharing the workload across multiple networked machines. It facilitates collaborative compilation in both local area networks and over VPNs, improving developer productivity in large codebases..
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 6,092
single transport
payload readable on path
registered with iana
caution
rank 817 of 993 · top 82%
Technical Details
what runs on :3632DistCC is an open-source distributed compiler system designed to accelerate C and C++ compilation by distributing preprocessing, compiling, and linking tasks across multiple networked machines. This approach allows compute resources to be pooled, dramatically reducing overall build times in large or complex software projects. Communication between the distcc client and volunteer servers typically occurs over TCP port 3632.
The architecture involves a coordinating client machine dispatching compilation tasks to connected servers running distccd (DistCC daemon) on their respective port 3632. The servers perform the actual compilation work and return results. DistCC integrates seamlessly with common build tools like make, CMake, and autotools, often requiring minimal modification to existing build schemes.
While DistCC is straightforward to deploy on private trusted networks, its inherent lack of strict access controls and encryption poses concerns if deployed on insecure or public networks. Best practices involve confining its usage within secure internal environments or leveraging additional layers of security.
Security Information
exposure of :3632risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
network services averages 3.9 across 604 ports — this one sits 0.1 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
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:
- Unauthorized access: Without proper configuration, distccd may accept jobs from untrusted hosts, potentially allowing arbitrary code execution.
- Code injection: Attackers could exploit unsecured endpoints to inject malicious code during compilation.
- Lack of encryption: Data transmitted, including potentially proprietary code, is unencrypted, which may lead to eavesdropping or data leaks.
Common mitigations:
- Restrict distccd to listen only on trusted network interfaces or IP ranges.
- Use firewall rules to block untrusted access to port 3632 externally.
- Run distccd under unprivileged accounts with limited system access.
- Tunnel DistCC connections over encrypted channels, such as SSH.
- Enable authentication mechanisms if available, or use VPNs to create a trusted communication environment.
- Regularly update to patch known vulnerabilities in the distccd implementation.
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risk mix of the 8 listed
- caution100%
0 of 8 encrypted