Tor Relays :: cmutornode

View Relay "cmutornode"

Fingerprint: `78C7C299DB4C4BD119A22B87B57D5AF5F3741A79` | Family: 1 relay | Nicolas Christin... | AS9 | United States of America | Linux

Health Status

Consensus: In Consensus (8/8 Directory Auths)
Flags: Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit (8)
DNS Health: Healthy (22.3s, 91st percentile) (via exitdnshealth.1aeo.com)
BW Verified: 5/5 BW Auths Measured 25 Kbit/s Median
Stability: Not Overloaded | UP 2w 3d 51m ago | UP 100% (1M)

Reachability: IPv4: 8/9 (Directory Auths)
First Seen: 3w 3d 8h ago
BW Weight: 0.00% of Network | 33 Mbit/s Observed By Relay
Version: 0.4.8.16 Not Recommended

Issues Detected:

High consensus weight deviation : Large variation in Consensus Weight values across authorities (see 'Cons Wt' column in Per-Authority Details below)
Suggestion: Consensus weight measurements vary significantly between authorities. This can affect traffic distribution. Ensure stable network connection and consistent bandwidth availability.
Tor version not recommended : Running Tor version 0.4.8.16 which is not on the recommended list.
Suggestion: Update to the latest stable Tor version. Outdated versions may have security vulnerabilities and could eventually be rejected by the network. See torproject.org/download for latest releases.

Notes:

Partial IPv4 reachability: 8/9 authorities can reach this relay

Connectivity and Location

Addresses

OR Address: TOR-EXIT.CYLAB.CMU.EDU
204.194.29.4:9001
Exit Address: 204.194.29.4

Reachability (Directory Authorities)

IPv4: 8/9

Location

Country: United States of America
Interactive Map: View in RouteFluxMap

Autonomous System

AS Number: AS9
AS Name: Carnegie Mellon University (BGP.tools)
AS Rarity: Legendary (score: 5/5, <0.05% consensus weight, 1 operator)

Flags and Eligibility

Current Flags (8): Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit

Eligibility Flag Vote Details

Flag	Metric	Status	Relay Value	Threshold Required
Running	IPv4 Reachability	Meets (8/8 DA)	8/8 authorities reached relay	≥5/8 DA ORPort reachable
Valid	Descriptor	Meets (8/8 DA)	8/8 authorities assigned Valid	Not blacklisted + valid descriptor (≥5/8 DA)
V2Dir	DirPort Available	Meets (8/8 DA)	Tunnelled: Yes (no DirPort) (R)	Tunnelled directory via ORPort or DirPort (≥5/8 DA)
Fast	Speed	Meets (8/8 DA)	33.1 Mbit/s (R)	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA) [Stricter] moria1: ≥8.4 Mbit/s
Stable	MTBF	Meets (8/8 DA)	Median: 336.0d (6/8 DA above threshold) Min/Max: 39.5d / 338.3d (8/8 DA, Voting / Total Eligible)	≥16.6d - 56.5d (varies) (≥5/8 DA) [Stricter] moria1: ≥312.0d
Stable	Uptime	Meets (8/8 DA)	17.0d (R)	≥8.9d - 9.0d (varies) (≥5/8 DA)
HSDir	Prereq: Fast	Meets (8/8 DA)	8/8 DA assigned Fast	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA) [Stricter] moria1: ≥8.4 Mbit/s
	Prereq: Stable	Meets (8/8 DA)	8/8 DA assigned Stable	≥16.6d - 56.5d (varies) (≥5/8 DA) [Stricter] moria1: ≥312.0d
	Prereq: V2Dir	Meets (8/8 DA)	8/8 DA assigned V2Dir	Tunnelled directory via ORPort or DirPort (≥5/8 DA)
	WFU	Meets (8/8 DA)	Majority: 100.0% (6/8 DA) Min/Med/Max: 99.4% / 100.0% / 100.0% (8/8 DA, Voting / Total Eligible)	≥98.0% (≥5/8 DA)
	Time Known	Meets (7/8 DA)	Median: 234.2d (8/8 DA above threshold) Min/Max: 9.8d / 338.3d (8/8 DA, Voting / Total Eligible)	≥1.0d (most) (≥5/8 DA) [Stricter] moria1: ≥9.9d
Guard	Prereq: Fast	Meets (8/8 DA)	8/8 DA assigned Fast	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA) [Stricter] moria1: ≥8.4 Mbit/s
	Prereq: Stable	Meets (8/8 DA)	8/8 DA assigned Stable	≥16.6d - 56.5d (varies) (≥5/8 DA) [Stricter] moria1: ≥312.0d
	Prereq: V2Dir	Meets (8/8 DA)	8/8 DA assigned V2Dir	Tunnelled directory via ORPort or DirPort (≥5/8 DA)
	WFU	Meets (8/8 DA)	Majority: 100.0% (6/8 DA) Min/Med/Max: 99.4% / 100.0% / 100.0% (8/8 DA, Voting / Total Eligible)	≥98% (≥5/8 DA)
	Time Known	Meets (8/8 DA)	Median: 234.2d (8/8 DA above threshold) Min/Max: 9.8d / 338.3d (8/8 DA, Voting / Total Eligible)	≥8 days (≥5/8 DA)
	Bandwidth	Meets (8/8 DA)	33.1 Mbit/s (R)	≥16.0 Mbit/s (Tor spec minimum) OR ≥80.0 Mbit/s-328.0 Mbit/s (≥5/8 DA)
Exit	Exit Policy	Meets (8/8 DA)	Port 80: Yes \| Port 443: Yes (R)	Allows ≥1 /8 on ports 80 AND 443 (≥5/8 DA)

(DA) = Dir. Auth. Measured | (R) = Relay Reported
Data from Tor CollecTor (authority votes, fetched 2026-05-01 07:15:08).

Bandwidth Metrics

Capacity (Relay Reported)

Observed Bandwidth: 33.08 Mbit/s
Advertised Bandwidth: 25.60 Mbit/s
Rate Limit: 25.60 Mbit/s
Burst Limit: 51.20 Mbit/s
Total Data: 323 TB (5 years)
1mo: 4.2 TB | 6mo: 22 TB | 1y: 43 TB | 5y: 323 TB

Measurement (Directory Authority Verified)

Source: CollecTor — fetched 2026-05-01 07:15:08

Measured By: 5/5 Bandwidth Authorities
Median Measurement: 25.6 Kbit/s
Min / Max: 9.6 Kbit/s / 45.6 Kbit/s
Deviation: 36.0 Kbit/s [Warning] High variation

Network Participation: Consensus Weight: 0.0010% of network (21th pctl) | Guard: 0.0004% (0th pctl) | Middle: 0.0004% (7th pctl) | Exit: 0.0022% (5th pctl)

Uptime and Stability

Uptime Metrics

Current Status: UP 2w 3d 51m ago
Overall Uptime (1M/6M/1Y/5Y): 100.0%/100.0%/98.8%/96.7%
Flag Uptime (1M/6M/1Y/5Y): Matches Overall Uptime (100.0%/100.0%/98.8%/96.7%)
Hibernating: No

Timestamps

First Seen: 3w 3d 8h ago (2026-04-06 23:00:00)
Last Seen: 1h 16m 20s ago (2026-05-01 06:00:00)
Last Restarted: 2w 3d 51m ago (2026-04-14 06:25:02)
Last Changed Address: 2026-04-06 23:00:00

Overload Status: Not Overloaded — No overload conditions reported.

Operator and Family

Operator Identity

Source: AROI Validation API — 2026-05-01 00:00 UTC

AROI Domain (?): Not specified
Operator Validation: Unvalidated
This Relay: N/A (no AROI configured)
Contact: Nicolas Christin https://cylab.cmu.edu/directory/bios/christin-nicolas.html

Family Configuration

Family Support: None — No family membership configured

Happy Families (family-cert)

Effective Members: 0: none

MyFamily (legacy declarations)

Effective Member: 1

78C7C299DB4C4BD119A22B87B57D5AF5F3741A79 (this relay)

Alleged Members: 0

none

Indirect Members: 0

none

Software and Version

Platform: Linux — Tor 0.4.8.16 on Linux
Version: 0.4.8.16 — Not Recommended
Version Status: Obsolete — Update urgently. See torproject.org/download

Exit Health & Policy

DNS Health

Status

Healthy (avg. 22.3s, 91st percentile)

Query Domain

ea154bfbd2604bda89762612bb2a0dd8.78c7c299.tor.exit.validator.1aeo.com

DNS Result

Resolved to 64.65.4.1

Cross-Validation

3/3 instances succeeded

First Hop

RicsiTORRelay (DE) FF86A59E35A2CF7F2744DA768DFBE90860868676

Exit Address Used

204.194.29.4

Per-Instance Results

Cross Validation Attempt 1:	Success, 27.5s	(cv1_w2)
Cross Validation Attempt 2:	Success, 25.0s	(cv2_w2)
Cross Validation Attempt 3:	Success, 14.3s	(cv4_w2)

Tested: 2026-04-30 19:11:18 UTC

Source: exitdnshealth.1aeo.com

IPv4 Exit Policy Summary

Full Exit Policy

reject 0.0.0.0/8:*
reject 169.254.0.0/16:*
reject 127.0.0.0/8:*
reject 192.168.0.0/16:*
reject 10.0.0.0/8:*
reject 172.16.0.0/12:*
reject 38.96.147.0/24:*
reject 41.74.174.48/28:*
reject 63.118.64.0/23:*
reject 66.250.56.240/30:*
reject 71.162.10.9:*
reject 75.149.27.224/30:*
reject 86.36.32.0/20:*
reject 128.2.0.0/16:*
reject 128.237.0.0/16:*
reject 147.160.159.10:*
reject 150.101.247.206:*
reject 162.17.195.65:*
reject 162.17.195.66:*
reject 162.17.195.67:*
reject 162.17.195.68:*
reject 162.17.195.69:*
reject 173.13.36.169:*
reject 192.5.146.0/24:*
reject 192.12.32.0/24:*
reject 192.58.107.0/24:*
reject 192.80.210.0/24:*
reject 192.88.115.0/24:*
reject 198.136.134.31:*
reject 202.158.199.234:*
reject 202.158.216.0/23:*
reject 204.194.28.0/22:*
reject 209.129.244.0/23:*
reject 233.0.9.0/24:*
accept *:20-21
accept *:43
accept *:53
accept *:79
accept *:80-81
accept *:88
accept *:110
accept *:143
accept *:194
accept *:220
accept *:389
accept *:443
accept *:464
accept *:465
accept *:531
accept *:543-544
accept *:554
accept *:563
accept *:587
accept *:636
accept *:706
accept *:749
accept *:853
accept *:873
accept *:902-904
accept *:981
accept *:989-990
accept *:991
accept *:992
accept *:993
accept *:994
accept *:995
accept *:1194
accept *:1220
accept *:1293
accept *:1500
accept *:1533
accept *:1677
accept *:1723
accept *:1755
accept *:1863
accept *:2082
accept *:2083
accept *:2086-2087
accept *:2095-2096
accept *:2102-2104
accept *:3128
accept *:3389
accept *:3690
accept *:4321
accept *:4643
accept *:5050
accept *:5190
accept *:5222-5223
accept *:5228
accept *:5900
accept *:6660-6669
accept *:6679
accept *:6697
accept *:8000
accept *:8008
accept *:8074
accept *:8080
accept *:8082
accept *:8087-8088
accept *:8232-8233
accept *:8332-8333
accept *:8443
accept *:8888
accept *:9418
accept *:9999
accept *:10000
accept *:11371
accept *:19294
accept *:19638
accept *:50002
accept *:64738
reject *:*

Last fetch was at Fri, 01 May 2026 07:16:19 GMT.

Consensus Evaluation

Data from Tor CollecTor (authority votes, fetched 2026-05-01 07:15:08).

Per-Authority Details

Each cell shows: your measured value | authority threshold. Green = meets, red = below. Flags: green = all authorities agree, yellow = partial.

Authority	Running	Valid	Exit	MiddleOnly	BW Scan (Authority)	v4	Flags	Fast (Relay\|T)	Guard BW (Relay\|Threshold)	Guard WFU (M\|T)	Guard TK (M\|T)	Stable MTBF (M\|T)	Stable Uptime (Relay\|T)	HSDir WFU (M\|T)	HSDir TK (M\|T)	Desc Published	Cons Wt (Authority)
bastet (US)	No	—	—	—	N	No	—	—	—	—	—	—	—	—	—	—	—
dannenberg (DE)	Yes	Yes	Yes	—	N	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	54.3d \| 8d	53.8d \| 47.5d	17.0d \| 9.0d	100.0% \| 98.0%	54.3d \| 1.0d	2026-04-30 23:25:22	25.6 Kbit/s
dizum (NL)	Yes	Yes	Yes	—	N	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	134.0d \| 8d	134.0d \| 42.5d	17.0d \| 10.4d	100.0% \| 98.0%	134.0d \| 1.0d	2026-04-28 17:25:18	25.6 Kbit/s
faravahar (US)	Yes	Yes	Yes	—	N	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	337.7d \| 8d	337.7d \| 56.8d	17.0d \| 9.0d	100.0% \| 98.0%	337.7d \| 1.0d	2026-04-30 23:25:22	25.6 Kbit/s
gabelmoo (DE)	Yes	Yes	Yes	—	Y	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 304.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	338.2d \| 8d	338.2d \| 55.3d	17.0d \| 9.0d	100.0% \| 98.0%	338.2d \| 1.0d	2026-04-30 23:25:22	15.2 Kbit/s
longclaw (US)	Yes	Yes	Yes	—	Y	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 248.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	334.4d \| 8d	334.4d \| 63.2d	17.0d \| 9.0d	100.0% \| 98.0%	334.4d \| 1.0d	2026-04-30 23:25:22	32.0 Kbit/s
maatuska (SE)	Yes	Yes	Yes	—	Y	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 328.0 Mbit/s OR 16.0 Mbit/s	99.4% \| 98%	64.2d \| 8d	39.5d \| 16.6d	17.0d \| 8.9d	99.4% \| 98.0%	64.2d \| 1.0d	2026-04-30 23:25:22	9.6 Kbit/s
moria1 (US)	Yes	Yes	Yes	—	Y	Yes	Running, Valid, V2Dir, Fast, Stable, Guard, Exit	33.1 Mbit/s \| 8.4 Mbit/s	33.1 Mbit/s \| 224.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	9.8d \| 8d	338.3d \| 312.0d	17.0d \| 9.2d	100.0% \| 98.0%	9.8d \| 9.9d	2026-04-30 23:25:22	45.6 Kbit/s
tor26 (AT)	Yes	Yes	Yes	—	Y	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Exit	33.1 Mbit/s \| 816.0 Kbit/s	33.1 Mbit/s \| 288.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	338.3d \| 8d	338.3d \| 56.5d	17.0d \| 9.0d	100.0% \| 98.0%	338.3d \| 1.0d	2026-04-30 23:25:22	14.4 Kbit/s

— = not tested/available • Format: relay value | authority threshold • WFU = Weighted Fractional Uptime • TK = Time Known

Bandwidth Values Explained:
Relay Reported = Your relay's self-reported bandwidth from its descriptor (observed_bandwidth). Used for flag eligibility (Guard, Fast).
Authority Measured = Bandwidth measured by authority's sbws scanner. Used for consensus weight (path selection probability).
Why different? Authorities verify your reported bandwidth independently. 6 of 9 authorities run bandwidth scanners; 3 use relay-reported values directly.

Stable Uptime (Two Data Sources):
Relay Uptime = From Onionoo API (last_restarted field). Self-reported uptime from descriptor. Same value for all authorities.
Authority Threshold = From CollecTor vote files (flag-thresholds stable-uptime). Each authority may have different thresholds.
Why two sources? Vote files contain authority thresholds but not per-relay uptime values. Onionoo aggregates relay descriptors which include uptime.