A server query program written in golang that uses the Steam Server Query API
$ ./steamserverinfo 184.172.24.19 2512 2>/dev/null | grep PLAYERS:
PLAYERS: 50
MAXPLAYERS: 50
$ ./steamserverinfo 91.198.152.238 64092 2>/dev/null | grep PLAYERS:
PLAYERS: 22
MAXPLAYERS: 36
# Note:
# any 3rd argument enables verbose output
# if verbose then any 4th argument enables color for hex dumps
#
$ steamserverinfo 173.192.105.212 2512 v c
Opening UDP connection...
Sending A2S_INFO...
Writing...
00000000 ff ff ff ff 54 53 6f 75 72 63 65 20 45 6e 67 69 |....TSource Engi|
00000010 6e 65 20 51 75 65 72 79 00 |ne Query.|
Wrote 25 bytes
Reading...
Read 127 bytes
00000000 ff ff ff ff 49 11 2f 72 2f 44 61 79 7a 55 6e 64 |....I./r/DayzUnd|
00000010 65 72 67 72 6f 75 6e 64 20 55 53 00 32 38 32 33 |erground US.2823|
00000020 34 31 00 64 61 79 7a 00 44 61 79 5a 00 00 00 09 |41.dayz.DayZ....|
00000030 32 00 64 77 00 01 30 2e 36 30 2e 31 33 33 39 31 |2.dw..0.60.13391|
00000040 33 00 b1 c6 09 09 f0 2b 11 2b 1e 40 01 62 61 74 |[email protected]|
00000050 74 6c 65 79 65 2c 6e 6f 33 72 64 2c 70 72 69 76 |tleye,no3rd,priv|
00000060 48 69 76 65 2c 65 74 6d 34 2e 30 30 30 30 30 30 |Hive,etm4.000000|
00000070 2c 30 32 3a 35 35 00 ac 5f 03 00 00 00 00 00 |,02:55.._......|
HEADER: 0x49
PROTOCOL: 0x11
NAME: /r/DayzUnderground US
MAP: 282341
FOLDER: dayz
GAME: DayZ
ID: 0
PLAYERS: 9
MAXPLAYERS: 50
BOTS: 0
SERVERTYPE: d
ENVIRONMENT: w
VISIBILITY: 0
VAC: 1
VERSION: 0.60.133913
PORT: 2502
KEYWORDS: @battleye,no3rd,privHive,etm4.000000,02:55
Sending A2S_RULES...
Writing...
00000000 ff ff ff ff 56 ff ff ff ff |....V....|
Wrote 9 bytes
Reading...
Read 9 bytes
00000000 ff ff ff ff 41 92 7d a9 06 |....A.}..|
Challenge number: 111771026
Sending A2S_RULES...
Writing...
00000000 ff ff ff ff 56 92 7d a9 06 |....V.}..|
Wrote 9 bytes
Reading...
Read 140 bytes
00000000 ff ff ff ff 45 08 00 61 6c 6c 6f 77 65 64 42 75 |....E..allowedBu|
00000010 69 6c 64 00 31 33 33 39 31 33 00 64 65 64 69 63 |ild.133913.dedic|
00000020 61 74 65 64 00 31 00 69 73 6c 61 6e 64 00 43 68 |ated.1.island.Ch|
00000030 65 72 6e 61 72 75 73 50 6c 75 73 00 6c 61 6e 67 |ernarusPlus.lang|
00000040 75 61 67 65 00 36 35 35 34 35 00 70 6c 61 74 66 |uage.65545.platf|
00000050 6f 72 6d 00 77 69 6e 00 72 65 71 75 69 72 65 64 |orm.win.required|
00000060 42 75 69 6c 64 00 31 33 33 39 31 33 00 72 65 71 |Build.133913.req|
00000070 75 69 72 65 64 56 65 72 73 69 6f 6e 00 36 30 00 |uiredVersion.60.|
00000080 74 69 6d 65 4c 65 66 74 00 31 35 00 |timeLeft.15.|
RULE LIST:
allowedBuild 133913
dedicated 1
island ChernarusPlus
language 65545
platform win
requiredBuild 133913
requiredVersion 60
timeLeft 15
Sending A2S_PLAYER...
Writing...
00000000 ff ff ff ff 55 ff ff ff ff |....U....|
Wrote 9 bytes
Reading...
Read 9 bytes
00000000 ff ff ff ff 41 92 7d a9 06 |....A.}..|
Challenge number: 111771026
Sending A2S_PLAYER...
Writing...
00000000 ff ff ff ff 55 92 7d a9 06 |....U.}..|
Wrote 9 bytes
Reading...
Read 162 bytes
00000000 ff ff ff ff 44 09 00 45 6c 65 70 68 61 6e 74 00 |....D..Elephant.|
00000010 00 00 00 00 1a d7 b6 45 00 53 70 61 6e 6b 79 00 |.......E.Spanky.|
00000020 00 00 00 00 4b 10 a8 45 00 53 68 61 6f 6c 69 6e |....K..E.Shaolin|
00000030 00 00 00 00 00 79 7a 7e 45 00 4c 61 63 65 73 54 |.....yz~E.LacesT|
00000040 6f 6f 4c 6f 6e 67 00 00 00 00 00 c1 72 6e 45 00 |ooLong......rnE.|
00000050 4e 61 67 61 76 00 00 00 00 00 97 43 44 45 00 67 |Nagav......CDE.g|
00000060 65 6e 61 72 00 00 00 00 00 c3 a0 60 44 00 53 70 |enar.......`D.Sp|
00000070 65 63 74 72 65 00 00 00 00 00 8b 0f 53 44 00 41 |ectre.......SD.A|
00000080 78 65 6c 20 41 67 75 73 74 69 6e 00 00 00 00 00 |xel Agustin.....|
00000090 e4 3a 75 43 00 42 75 73 68 00 00 00 00 00 c3 33 |.:uC.Bush......3|
000000a0 80 41 |.A|
PLAYER LIST:
Elephant 0 5851
Spanky 0 5378
Shaolin 0 4072
LacesTooLong 0 3815
Nagav 0 3140
genar 0 899
Spectre 0 844
Axel Agustin 0 245
Bush 0 16