{
  "gex": {
    "1024": "EOF",
    "2048": {
      "g": 5,
      "p": 25959350590346687572493624023331735471831785896329018427246037018830856588056076817279637956154746415475299204620146870120357737186155518196118317846673581931290663944702655969804645989657603047382260831161401710919063319655086676297012576917834692727716556581811002490587010534490885202591980687921728904599581267326682925438758368559754702189463651379624950792813331954515274852596132470912989593912489544449638781541836073371614576764246310168001741658698642858158676721255363893152349322463477278583608025829379065882728649195109874366039191192584604663012293017262568388880809937048317882558601146947239957548327
    },
    "3072": {
      "g": 2,
      "p": 4380457240229154004781309200303094935364601882392222229578767653682338854267643844448470578219246914866607645414151470873588815476779577266081719639659729182729030046340786278617324171526439221567315736989644109996620079709235421327150683242035678180740660215888446045260557633828297030154438942401215892092536308486176584404292032064125212770496218724870672056820084872920991650505259311238406325470049897082614038596265079245048924450650578383032931158850173115603104573702039842174573657719332232844552872989038265985074462731458372040239352692790445263527296872855986092551221161437781997105225582743392869658773212628207124137629652445634497960790270929555063241793051373504719044050227804371565772586705793392517621313401494069177169847523268064599233930904980555982609264083545089070020453164385384782552158438065252980429086124058077319862618927236720683596783410020857704014292969513083698631843859691358430291299587
    },
    "4096": {
      "g": 5,
      "p": 910545169600665170847779042986727110077410690052102956021313983896638877865175115911311516168529856344100250113682839626381095252044699459120000453907139668906853123475978364340061478664190151173926956380503771840566109619904006913912104441974461372332468470628264381386632632289102732491257435470258469144380168045056568781344255900788220797898875286649628265495833121403280663325668255386958138696801347365725441408765602300725906930317969017180591778443157376215675845496305379580897109052354346286837078649785270538281486160265021343933147488335322684801623244181717795666372272300294517052003717983569176667179275668410593438941269082693336598282091582031827157628271075216824355848972738837430177958801384344883045000031953124989167642003185821448677581159385317043939928718434135979675452994126255441667725134242171908983833164117646678005966966329399897985269402111259560440739089052673066823172780182801064749478354669713992617769803581137445190131210180354953571024107792470741249559731735709616681038788046646425700273546034722449151135497540784575677227483528895384760853151046951030411076981090947012348661967365660110577765888995853237646731339796219271456402677944498460577111848483965606435776662064262990719094577943
    },
    "6144": {
      "g": 2,
      "p": 29705559550333899621809628719827910538511651244436305477718553331767437548813881578580517137536479672753423927149461228820756326324806334566508976523345917041284957880078656921481387659616550110514218382938593066068809325995500664454438861978992761009897997387584290746616445411000940899672071077443259742736798599657694744130351660771288395936956806767864643467465951466952705720385235211717232606731055069956632176654032428672188808862624114186859404797004835203586278975203840853298442382111952503669085443894096161653199471194617294292562300947897798393544427361988620440128748893721682579289485491276906490837918030774103934673704660835518544807033810164451694828022501832526737608564417222034951079975783703985957462146477213155281055775222306149900731376395460030236406470679374360503220740290658600400608087478220310490467817038279153853711855989727297975479706122192411770687552783065021151626181014584078962490403243392737173506642803985545784499021870532124852014872208803165214476547862375562578812009354497362627541021179368787051744289778516703039461750449675933242565492489122931574589663477939098208939202839345839448512080736075070431265498716142961250415248928441527003054778714646780634969585350648231762775857828235959039415671787187969795751998178117893577859605820714896173492039068072098473559409858228168860890025605780229720773643452277275944357123800061891152811765963878405680525726282811472431727712081693374216968285428285739520073961055712511696992234056639204412452978911612883385473931594309936128223818687007864066111206415221672686359859894385257435527868543335033050213016324415082880511439871525465182741626445654765736824431953085326889425408615376931748602853744807838540704267847409643262764466708407509778173581629594667313144880392998003751369596846684927719153858899366554637939349583983849401241905190785539
    },
    "768": "EOF",
    "8192": {
      "g": 2,
      "p": 923029739808273262279622604119333936865978524874489802146883565228044651807371357252367954236424486057874123808006827424500522968464847951111537407292015274969186320741108912027331156341561267273577459495540713478316628636242676013087893089491167487197707951739885106859535685540130811083817092303163242885041976680764103361100988534767454858249779331140840440011732392816755177816543188166527460449405345682482357608196058353774100076011108334619293929748882500201645525383819009661010964424794865599425214739117320684186763042240132472743732113800632338733131132414271429474643771507843892832615105418598549731386410043081630985046823613965605756008152045220698522790252195010955970552083998444300874025055149765508030647540818738449437164891529355825301405098715199485763974919643189475066116650597439030271587202013658784294201448057670624366853320082870659928338290273923669652490372015858242978651053450512066157834835687518995182524471673298966342970712482161962679843402131844139625403192588976646185676482328926419149222131710081561020426981409833058899878226613572445825483021423050695562611415949473718605830897475901454040471029045834026332850552461750931416235929144365930155085582301949343985925608735376975914263403455803385409538633548145371783439678928478323119921668173918181326762204496321371361457124572660677981641663024525783849927398481983991364056730241680212164625264036643489600793983430132575693217999799163457293491774368628807848466264392106839275918882982807399466740778468103024847722582855075441697840244866941159884662343975819576431292485273568750731197594497118782670975015762985798754651666370059468346346593726715160242253478957621835637011326880404527581779644838664819498513727968126434770061466191610854691278623450866052143166352160117733674161939849171257358473249597151032036308741849529239286769197261234162813437489730728931307786207691180746105610715097629685105876983690517107785869205023840881776363609898934687977802349153898257814250288295865668116559890358041854774629237423723209257224451988334857832644242598068767037994279333849738277988130284949319142946320270783087097012632497673069986069661445757107031466349625615059186874679919876687281833572918373941393945744496277050886970533109072623182664803559780623886661068628685341739283971370750644264709874650382510389724581624349949933163344440243238227271888562812619530066158208664464264051139416429941269287381604080436545921912771161996754064108969339164339
    }
  },
  "host_keys": {
    "ecdsa-sha2-nistp256": {
      "algorithm": "ecdsa-sha2-nistp256",
      "ascii": "AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBPspuODmjvbZRfp8WCSdHJsx/yMXaNkI3vYERnB0KBUEP8Zhh8hEoxcAkQEOT8eeW9nLi+xkDCJgCbdt2O4Otpk=",
      "fingerprint": "0a:b6:ef:39:00:37:98:0f:42:70:bf:ba:b5:3f:a6:f5",
      "n": 66785704213440923304158249970180323122683490200394036031680139207544883490951128975263089343520795906334929661338256149654268801622058920269495096782534297,
      "name": "nistp256"
    },
    "ssh-ed25519": {
      "algorithm": "ssh-ed25519",
      "ascii": "AAAAC3NzaC1lZDI1NTE5AAAAIN4Hv9eZkwfAt97e8IGnwRzAOs0Sjia/eDqeule7b4+3",
      "fingerprint": "45:26:fc:4b:4f:13:cd:2d:8d:87:83:b8:57:0f:12:bd",
      "n": -15364944876263572703265841847331451516989492052292539332257010431379920416841
    },
    "ssh-rsa": {
      "algorithm": "ssh-rsa",
      "ascii": "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",
      "e": 65537,
      "fingerprint": "20:cd:04:02:74:6b:6d:ef:71:3a:a6:ee:ef:e6:d3:ee",
      "n": 3076797451833140176561001095718144498584608182319217790587852589760863767047049152796234957431077559186387220599150444435134219189357548169299736122020235145346186514420670682807005107021004931090455434434162489268217668504980711616640347918650988424883884574545231307157298799515296018104924882823516226774130146617549746681278490178714392956455005364120280768857449598688424391748410897958032103293961587915689842337751932163912524992707347921368848723100892957860566492013055624442380879495524289211161307622091464010534800774338471592522187839299474068125639514071845951632970537553932327880189710452612472335757006681504209062320921754109787474850039463117368368865373295185794182466040359033842752475427219951015212274667995953395657799822277141874065827441023008443048140044692764588482558773518512599919773190265862395322024989849731186690456111281166618443203633094333770090830942054753235455218324444264275411384293
    }
  },
  "ident": "SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6",
  "ip": "149.28.238.185",
  "supported": {
    "compression_algorithms_client_to_server": [
      "none",
      "zlib@openssh.com"
    ],
    "compression_algorithms_server_to_client": [
      "none",
      "zlib@openssh.com"
    ],
    "encryption_algorithms_client_to_server": [
      "chacha20-poly1305@openssh.com",
      "aes128-ctr",
      "aes192-ctr",
      "aes256-ctr",
      "aes128-gcm@openssh.com",
      "aes256-gcm@openssh.com"
    ],
    "encryption_algorithms_server_to_client": [
      "chacha20-poly1305@openssh.com",
      "aes128-ctr",
      "aes192-ctr",
      "aes256-ctr",
      "aes128-gcm@openssh.com",
      "aes256-gcm@openssh.com"
    ],
    "kex_algorithms": [
      "curve25519-sha256",
      "curve25519-sha256@libssh.org",
      "ecdh-sha2-nistp256",
      "ecdh-sha2-nistp384",
      "ecdh-sha2-nistp521",
      "sntrup761x25519-sha512@openssh.com",
      "diffie-hellman-group-exchange-sha256",
      "diffie-hellman-group16-sha512",
      "diffie-hellman-group18-sha512",
      "diffie-hellman-group14-sha256",
      "kex-strict-s-v00@openssh.com"
    ],
    "languages_client_to_server": [
      ""
    ],
    "languages_server_to_client": [
      ""
    ],
    "mac_algorithms_client_to_server": [
      "umac-64-etm@openssh.com",
      "umac-128-etm@openssh.com",
      "hmac-sha2-256-etm@openssh.com",
      "hmac-sha2-512-etm@openssh.com",
      "hmac-sha1-etm@openssh.com",
      "umac-64@openssh.com",
      "umac-128@openssh.com",
      "hmac-sha2-256",
      "hmac-sha2-512",
      "hmac-sha1"
    ],
    "mac_algorithms_server_to_client": [
      "umac-64-etm@openssh.com",
      "umac-128-etm@openssh.com",
      "hmac-sha2-256-etm@openssh.com",
      "hmac-sha2-512-etm@openssh.com",
      "hmac-sha1-etm@openssh.com",
      "umac-64@openssh.com",
      "umac-128@openssh.com",
      "hmac-sha2-256",
      "hmac-sha2-512",
      "hmac-sha1"
    ],
    "server_host_key_algorithms": [
      "rsa-sha2-512",
      "rsa-sha2-256",
      "ecdsa-sha2-nistp256",
      "ssh-ed25519"
    ]
  }
}

SSH Report for 149.28.238.185

Score: F

Server Parameters

Server version SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6
Compression none
zlib@openssh.com

Host Keys

rsa-sha2-512 Generally considered secure a
3072-bit key
20:cd:04:02:74:6b:6d:ef:71:3a:a6:ee:ef:e6:d3:ee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a
rsa-sha2-256 Generally considered secure a
3072-bit key
20:cd:04:02:74:6b:6d:ef:71:3a:a6:ee:ef:e6:d3:ee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a
ecdsa-sha2-nistp256 NIST curves considered insecure b
0a:b6:ef:39:00:37:98:0f:42:70:bf:ba:b5:3f:a6:f5
AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBPspuODmjvbZ
Rfp8WCSdHJsx/yMXaNkI3vYERnB0KBUEP8Zhh8hEoxcAkQEOT8eeW9nLi+xkDCJg
Cbdt2O4Otpk=
a
ssh-ed25519 Generally considered secure a
45:26:fc:4b:4f:13:cd:2d:8d:87:83:b8:57:0f:12:bd
AAAAC3NzaC1lZDI1NTE5AAAAIN4Hv9eZkwfAt97e8IGnwRzAOs0Sjia/eDqeule7
b4+3
a

Key Exchange

curve25519-sha256 Generally considered secure a
curve25519-sha256@libssh.org Generally considered secure a
ecdh-sha2-nistp256 NIST curves considered insecure b
ecdh-sha2-nistp384 NIST curves considered insecure b
ecdh-sha2-nistp521 NIST curves considered insecure b
sntrup761x25519-sha512@openssh.com Unknown key exchange algorithm f
diffie-hellman-group-exchange-sha256 Generally considered secure a
768 bit request Server refused the request

              
0
1024 bit request Server refused the request

              
0
2048 bit request 2048-bit group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3072 bit request 3072-bit group
C1064E3791D96D66CA94320FDDA0DD731891FE4D4E4BCB5C8C2A22E33BE0C071
BDD6B55DF0A474F1123F6AA3CDBB043EE9972052E3422BAAF9CBB6C1E77E2817
F0266F0018351110EE2017EDE4312F0E0ABECA6585F15630FE2228BC03E4DEC8
4F31650177D712CDE77D6D6D2B0B391F64CD792A6C14BF9A16011EE673183465
882595613087535464AC29A1138E1FB2B1024693A368700447307B43435E1BC7
18CD239396943F22BBF861EA0098069CAB7976B13C60A9CDD4BEDE6DF3659D61
188E161D2D5A02CADDCCB547319E02211D00445BE47F5484F673239D7796CB1E
1D3FF1558DA0ACD3AB17C6B3D8C3F00DFBBBF69F3B600E98DDC1FB0C0F79FC2E
2F88C891F7BACAD4023331B623DF6835B2A7E881E59F0B7CE676208717E3AA51
FBEDD7E9EE62527F253762C7B6A3D987DF800D2FB66DFE4F9588BEAA938DD9FA
A5916186746FBC25A357F57D0E03442EEA6D067F19ABB96865474A250C73F66F
E0FC5B5847CAB8F2CE25765A52A27223BD725C7ECFCF55EAAB8505903E680D03
a
4096 bit request 4096-bit group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EAAC4270A6D66269978BB7382055BE7C36CE63446899C7ADF725F375B19B5B17
a
6144 bit request 6144-bit group
E14FDFEE7787F1C28112A16D64FE7C953E3A963B98675E5C078465D774DDD60D
0689616D88E223B1D75C4D124BD32324D828137D8AF145AED00162977FA394F7
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2C491229E283A236DB444E75BCD2F43B0FF35B809E6336314945B725912A1C34
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59E19F226B33235BA30D0F3B163F21BE8964C67D0CD118EB7EDBE0DB21762006
A115ECCF829452B51E533AC29A836DC6CF40135FCB31B77A287E5CD377A0A80D
7F2683A9D9E760F3EA479CFCE9627AFF5BF6AEC257043D71E0CC695D2DF4589C
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A73CB84E236B8A10D3B7D8BE6097E4679CC8BE8C77A1CB824F6231E7B5E9D203
a
8192 bit request 8192-bit group
D8A2E2F024645B5A3FB339A2EF06A3E46CD2AA808530C320F121CE1EEBEE128D
6DB4C49492881B35E5AA8C43CAA07E7F69A5C4ECD0EE62A29FC191B9C0DD6955
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BAD0F2BE625802AF1B504F59A4A88DAA5F52F221E0E9E0DB1396F07EAF2CA88B
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0E531C3B2E02864B130BB0BA476F23024DCCA6411CE1BBD1D5C9F5346DB36334
117AAF7A1B4ABE86470CABDF862010F5AE3129CA17F36BA89EE3DB83641804EC
2455ED75686342E9F339068A77258BBC292E05AF5C233F5B74CA83080CC5DAE0
1E977E2F7D1ADC36803398B81DAC22DE391F512912148392371C658C416C96C8
C3035928EDBB418CF249C9C02793AE6661AB04B4C6C944F55B23CB5621511DAC
D8EC5C1ECD463620CAC79C38B6CC95FA8993482EA255246D30DA6EA67C677889
F56CDF4466F5D968069E152B0BE30B64E1B18607035D7D15503D364B73BAB558
2CDF290FE30D2EB7A4F6F797D80702CC448E1153A3A9D882445C73BA49038858
8F31FA6C14BA7DBFAD39E1CE6B0E2FAD69015F81FF6DAAC56420A478CF717DD9
52A0DC51B1E38113CF5EF2AC2EC08B6F6CB427A06AD990213C09DB2CBC6896B3
a
diffie-hellman-group16-sha512 Generally considered secure a
diffie-hellman-group18-sha512 Generally considered secure a
diffie-hellman-group14-sha256 Generally considered secure a
kex-strict-s-v00@openssh.com Unknown key exchange algorithm f

Message Authentication

umac-64-etm@openssh.com Use at least 128 bits f
umac-128-etm@openssh.com Generally considered secure a
hmac-sha2-256-etm@openssh.com Generally considered secure a
hmac-sha2-512-etm@openssh.com Generally considered secure a
hmac-sha1-etm@openssh.com SHA1 is broken f
umac-64@openssh.com Use at least 128 bits f
umac-128@openssh.com Generally considered secure a
hmac-sha2-256 Generally considered secure a
hmac-sha2-512 Generally considered secure a
hmac-sha1 SHA1 is broken f

Encryption

chacha20-poly1305@openssh.com Possibly affected by Terrapin MITM d
aes128-ctr Consider upgrading to 192- or 256-bit b
aes192-ctr Generally considered secure a
aes256-ctr Generally considered secure a
aes128-gcm@openssh.com Consider upgrading to 192- or 256- bits. b
aes256-gcm@openssh.com Generally considered secure a