I made a server for TF2 on a Vultr instance, running Ubuntu 18.04.2 LTS.

Everything went well, except that when I try running the RCON commands, it hits me with this error:

Unable to connect to remote server (my.server.ip.here:27015)

I followed the instructions here.

What am I doing wrong? Is there a specific config I need for Vultr?

My server.cfg:

// General Settings //
hostname TF2 Server - DNJ
sv_contact [REDACTED]
sv_lan 0 // Server type; 0 = Internet; 1 = LAN
sv_region -1 // Region: -1 = World; 0 = USA East; 1 = USA West; 2 = S. America; // 3 = Europe; 4 = Asia; 5 = Australia; 6 = Middle East; 7 = Africa
// Passwords //
rcon_password [REDACTED] // Password for administrator access
sv_password // Server password
// Server Logs //
log on
sv_logecho 1 // Echo log information into your console
sv_logfile 1 // Add log file
sv_log_onefile 0 // Log to a single file
sv_stats 1 // Collect CPU usage states
// Bans and Ban Logs //
sv_rcon_maxfailures 5 // Max amount of failed RCON logins before ban (between 1 - 20)
sv_rcon_banpenalty 60 // Ban time for RCON failed login in minutes
sv_logbans 1 // Turn on ban logging
// Server Downloads/Uploads //
sv_allowdownload 1
sv_allowupload 1
sv_consistency 1 // File consistency check
net_maxfilesize 15 // Max file size for uploading in MB
// Pure Server //
// Pure Servers force all clients to use content that matches the server
sv_pure 2 // 0 = Off; 1 = Enforce via pure_server_whitelist.txt // 2 = Steam official content
sv_pure_kick_clients 1 // Kick clients in violation
sv_pure_trace 1 // Display violation message
// Bandwidth & Frame Rates //
sv_maxrate 50000 // Max bandwidth rate; 0 = Unlimited
sv_minrate 0 // Min bandwidth rate; 0 = Unlimited
sv_maxupdaterate 66 // Max updates per second
sv_minupdaterate 10 // Min updates per second
fps_max 600 // Frame Rates; 0 = Unlimited
// Server Variables //
mp_allowspectators 1
sv_cheats 0
sv_pausable 0
mp_footsteps 1
sv_allow_votes 1 // Vote on maps
mp_forcecamera 1 // Camera restriction for dead players
mp_idlemaxtime 3 // Max idle time for players (in minutes)
mp_idledealmethod 1 // Idle player kick method; 0 = Off; 1 = Move to spectate; 2 = Boot
// Game Variables //
sv_visiblemaxplayers 24 //Max players
mp_friendlyfire 1
mp_flashlight 1
mp_falldamage 0
tf_weapon_criticals 1 // Allows crits
tf_damage_disablespread 0 // Random damage spread (±10%)
tf_use_fixed_weaponspreads 0 // Consistent spread for weapons
// Team Autobalance //
mp_autoteambalance 1
mp_teams_unbalance_limit 2 // Amount of additional players on team before unbalanced
// Round Variables //
mp_enableroundwaittime 1 // Enables timers between rounds (setting this to 0 causes a known bug)
mp_bonusroundtime 15 // Time after win until restart
mp_restartround 0 // Round restart in seconds
mp_stalemate_enable 0 // Enable sudden death
mp_stalemate_timelimit 240 // Timelimit of stalemate round
mp_maxrounds 0 // Max rounds before map change
mp_winlimit 0 // Max wins before map change
mp_timelimit 0 // Max time before map change
// Communication //
sv_voiceenable 1
sv_alltalk 0 // Players can hear all other players
mp_chattime 10 // Post-game chat in seconds
// Execute ban files //
exec banned_user.cfg
exec banned_ip.cfg
writeid
writeip

My startup script (tf.sh)

#!/bin/sh
screen -S "TF2" tf2/srcds_run -console -game tf +sv_pure 0 +ip 0.0.0.0 +map ctf_2fort +maxplayers 24
Reset to default