{"adoption": {"forks": 680, "observed_at": "2026-08-28T04:06:08.668163+00:00", "stars": 2042}, "canonical_url": "https://ross.abutalabs.com/products/lvs", "card": {"archived": false, "artifact_type": "library", "description": "A distribution of Linux Virtual Server with some advanced features. It introduces a new packet forwarding method - FULLNAT other than NAT/Tunneling/DirectRouting, and defense mechanism against synflooding attack - SYNPROXY.", "domain": ["networking", "infrastructure-as-code", "self-hosted", "security"], "enriched": true, "function": ["networking", "proxy", "security", "load-testing"], "health_score": 20, "homepage": null, "language": "C", "license": null, "license_family": "other", "maturity": "maintenance", "member_repos": ["alibaba/LVS"], "name": "alibaba/LVS", "platform": ["c"], "pushed_at": "2019-07-02T02:59:08+00:00", "repo": "alibaba/LVS", "stars": 2042, "tags": ["load-balancer", "ipvs", "fullnat", "synproxy", "kernel-module", "lvs", "linux"], "topics": [], "urls": [], "use_cases": ["load balance TCP traffic across backend servers in different VLANs", "protect servers against SYN flooding attacks", "build a high-performance software load balancer on Linux", "forward packets between LVS and real servers on different networks", "scale web services with layer-4 load balancing"], "what_it_is": "Alibaba's distribution of Linux Virtual Server (LVS) adding advanced features to the kernel IPVS load balancer. It introduces the FULLNAT packet forwarding method and a SYNPROXY defense module against SYN flood attacks.", "when_to_avoid": ["you need a userspace or cloud-managed load balancer", "you run modern kernels where upstream LVS or other proxies like HAProxy/NGINX may suffice", "you need active maintenance, recent releases, or a clear license"], "when_to_choose": ["you need FULLNAT mode so real servers only need internal network access", "you run Linux kernel 2.6.32-based infrastructure and need IPVS enhancements", "you want built-in SYN flood protection in your load balancer"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/lvs", "repo": "alibaba/LVS", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:06:08.668163+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T02:58:17.464383+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "c0101fa8f0dec69a05ca7ef6ab129b31dc3b55e5bc209de1d598185b56d75ffa", "fetched_at": "2026-08-28T04:06:08.668163+00:00", "kind": "readme", "missing": false, "url": "https://github.com/alibaba/LVS"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["no_releases", "no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4810, "days_push": 2619, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}