79.172.217.221
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
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Autonomous System
Geolocation
Reverse DNS
Network
Open Ports
| Port | Proto | Service | Server | Last seen |
|---|---|---|---|---|
| 80 | tcp | http | nginx | 2026-06-14 19:50:05.000 |
| 81 | tcp | — | Apache/2.4.10 (Debian) mod_fastcgi/mod_fastcgi-SNAP-0910052141 OpenSSL/1.0.2l | 2026-07-21 12:06:08.000 |
| 443 | tcp | https | Apache/2.4.10 (Debian) mod_fastcgi/mod_fastcgi-SNAP-0910052141 OpenSSL/1.0.2l | 2026-06-23 17:13:12.000 |
| 5666 | tcp | — | — | 2026-07-27 06:24:41.000 |
TLS Certificates
Known Vulnerabilities
Published CVEs matched to the software versions fingerprinted on this host. Matching is by product and version against the NVD dictionary — presence of a CVE does not confirm the host is exploitable (patches or backports may apply).
| CVE | Software | CVSS | Severity | Summary |
|---|---|---|---|---|
| CVE-2017-3169 | Apache 2.4.10 | 9.8 | N/A | In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() d... |
| CVE-2018-1312 | Apache 2.4.10 | 9.8 | N/A | In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated us... |
| CVE-2016-0736 | Apache 2.4.10 | 7.5 | N/A | In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB m... |
| CVE-2016-2161 | Apache 2.4.10 | 7.5 | N/A | In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for... |
| CVE-2017-15710 | Apache 2.4.10 | 7.5 | N/A | In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language head... |
| CVE-2017-9798 | Apache 2.4.10 | 7.5 | N/A | Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has... |
| CVE-2016-4975 | Apache 2.4.10 | 6.1 | N/A | Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32... |
| CVE-2017-3737 | OpenSSL 1.0.2l | 5.9 | N/A | OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSS... |
| CVE-2017-3738 | OpenSSL 1.0.2l | 5.9 | N/A | There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis su... |
| CVE-2017-3735 | OpenSSL 1.0.2l | 5.3 | N/A | While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of... |
| CVE-2023-3817 | OpenSSL 1.0.2l | 5.3 | N/A | Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex()... |
| CVE-2013-5704 | Apache 2.4.10 | 5.0 | MEDIUM | The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer po... |
| CVE-2014-3581 | Apache 2.4.10 | 5.0 | MEDIUM | The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to ca... |
| CVE-2014-3583 | Apache 2.4.10 | 5.0 | MEDIUM | The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers to cause a denial of... |
| CVE-2015-3184 | Apache 2.4.10 | 5.0 | MEDIUM | mod_authz_svn in Apache Subversion 1.7.x before 1.7.21 and 1.8.x before 1.8.14, when using Apache httpd 2.4.x, does not properly restrict anonymous access, whic... |
| CVE-2014-8109 | Apache 2.4.10 | 4.3 | MEDIUM | mod_lua.c in the mod_lua module in the Apache HTTP Server 2.3.x and 2.4.x through 2.4.10 does not support an httpd configuration in which the same Lua authoriza... |
| CVE-2015-3185 | Apache 2.4.10 | 4.3 | MEDIUM | The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x before 2.4.14 does not consider that a Require directive may be associate... |
Origin / IP-Leak
When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.
No origin-leak candidates for this IP
When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.
Hosted Domains
2 domains resolve (A-record) to this IP.
Multi-Vantage Check
Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.
No accumulated reachability data yet
Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.
Threat Intelligence
No threat-intel matches
This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.
Co-Hosted Domains
Domains this host references in its HTML AND whose DNS A/AAAA record resolves back to this IP — i.e. actually hosted here.
External References
Domains the body links to whose DNS does NOT resolve to this IP — usually CDN assets, embeds, or third-party services. Boilerplate (Google Fonts, jsDelivr, w3.org…) is already filtered.
History
The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.