V osemdesiatych rokoch boli BBS-ky centrom digit\u00e1lneho \u017eivota. \u013dudia vyt\u00e1\u010dali modemom \u010d\u00edslo, prip\u00e1jali sa na lok\u00e1lne n\u00e1stenky, \u010d\u00edtali spr\u00e1vy, stiahli si hru, podp\u00edsali sa do guestbooku. Potom pri\u0161iel internet a BBS-ky zmizli.<\/p>\n\n\n\n
Ale \u010do ak si jednu postav\u00edte znova — nie ako nostalgick\u00fa hra\u010dku, ale ako re\u00e1lny server, na ktor\u00fd sa d\u00e1 pripoji\u0165 z p\u00f4vodn\u00e9ho hardv\u00e9ru? Presne to som spravil. Moj BBS be\u017e\u00ed na Raspberry Pi Zero 2 W (za cca 17 EUR), po\u010d\u00fava na porte 6502 a ka\u017ed\u00fd s Atari XE\/XL sa na \u0148u m\u00f4\u017ee pripoji\u0165 cez telnet.<\/p>\n\n\n\n
Pou\u017eite Raspberry Pi Imager<\/strong>, zvo\u013ete Raspberry Pi OS Lite (64-bit)<\/strong>. V nastaveniach:<\/p>\n\n\n\n Vlo\u017ei\u0165 SD kartu do Pi, zapn\u00fa\u0165, po\u010dka\u0165 p\u00e1r min\u00fat a pripoji\u0165 sa:<\/p>\n\n\n IP adresu n\u00e1jdete v admin rozhran\u00ed v\u00e1\u0161ho routera, alebo pou\u017eite:<\/p>\n\n\n BBS je jednoduch\u00fd telnet server nap\u00edsan\u00fd v Pythone. Po\u010d\u00fava na porte 6502<\/strong>.<\/p>\n\n\n\n Vytvorte s\u00fabor Server m\u00e1 tieto funkcie:<\/p>\n\n\n\n K\u013e\u00fa\u010dov\u00e9 je spr\u00e1vne spracovanie telnet protokolu — BBS mus\u00ed:<\/p>\n\n\n\n Toto je srdce BBS — funkcia ktor\u00e1 \u010d\u00edta vstup od u\u017e\u00edvate\u013ea. Na re\u00e1lnom Atari cez FujiNet posielate znaky jeden po jednom a server ich echo-uje nasp\u00e4\u0165. Backspace funguje spr\u00e1vne, timeout odpoj\u00ed neakt\u00edvnych.<\/p>\n\n\n\n Aby BBS be\u017eala st\u00e1le (aj po re\u0161tarte Pi), vytvorte systemd unit:<\/p>\n\n\n Fail2ban v default konfigur\u00e1cii zablokuje IP po 3 ne\u00faspe\u0161n\u00fdch SSH pokusoch na 24 hod\u00edn. Na malom Pi Zero 2 je to d\u00f4le\u017eit\u00e9 — nechcete, aby v\u00e1m boti zahltili procesor.<\/p>\n\n\n\n Aby bola va\u0161a BBS dostupn\u00e1 z internetu, nastavte na routeri port forwarding:<\/p>\n\n\n\n Ak m\u00e1te dynamick\u00fa IP, pou\u017eite DDNS slu\u017ebu alebo si nap\u00ed\u0161te skript na detekciu zmeny WAN IP:<\/p>\n\n\n Pridajte do cronu ( Toto je „hardcore“ varianta pre puristov — \u017eiadny PC v re\u0165azci<\/strong>:<\/p>\n\n\n\n Cel\u00fd setup stoj\u00ed menej ne\u017e 20 EUR (Pi Zero 2 W) + cena FujiNetu alebo SIO2PC k\u00e1bla. V\u00fdsledkom je plne funk\u010dn\u00e1 BBS-ka, na ktor\u00fa sa d\u00e1 pripoji\u0165 z p\u00f4vodn\u00e9ho Atari 800XL z roku 1983.<\/p>\n","protected":false},"excerpt":{"rendered":" Pre\u010do BBS na ATARI v roku 2026? V osemdesiatych rokoch boli BBS-ky centrom digit\u00e1lneho \u017eivota. \u013dudia vyt\u00e1\u010dali modemom \u010d\u00edslo, prip\u00e1jali sa na lok\u00e1lne n\u00e1stenky, \u010d\u00edtali spr\u00e1vy, stiahli si hru, podp\u00edsali sa do guestbooku. Potom pri\u0161iel internet a BBS-ky zmizli. Ale \u010do ak si jednu postav\u00edte znova — nie ako nostalgick\u00fa hra\u010dku, ale ako re\u00e1lny server, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4700","post","type-post","status-publish","format-standard","hentry","category-nezaradene"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/posts\/4700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/comments?post=4700"}],"version-history":[{"count":6,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/posts\/4700\/revisions"}],"predecessor-version":[{"id":4711,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/posts\/4700\/revisions\/4711"}],"wp:attachment":[{"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/media?parent=4700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/categories?post=4700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.turiecfoto.sk\/atari\/wp-json\/wp\/v2\/tags?post=4700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
user<\/code>) a heslo<\/li>\n<\/ul>\n\n\n\n\nssh user@<IP_adresa_Pi>\n<\/pre><\/div>\n\n\n
\n# z in\u00e9ho po\u010d\u00edta\u010da v sieti:\nping raspberrypi.local\n<\/pre><\/div>\n\n\n
Z\u00e1kladn\u00e9 nastavenie<\/h3>\n\n\n
\nsudo apt update && sudo apt upgrade -y\nsudo apt install -y python3 lighttpd msmtp msmtp-mta ufw fail2ban\n<\/pre><\/div>\n\n\n
\n\n\n\nKrok 2: BBS server v Pythone<\/h2>\n\n\n\n
\/home\/user\/bbs.py<\/code>:<\/p>\n\n\n\n#!\/usr\/bin\/env python3\n"""\nUSER BBS - Lightweight Bulletin Board System\nFor FujiNet Atari XE\/XL via telnet\n"""\n\nimport socket\nimport threading\nimport time\nimport os\nimport json\nfrom datetime import datetime\n\nBBS_PORT = 6502\nBBS_DIR = "\/home\/user\/bbs"\nMESSAGES_FILE = f"{BBS_DIR}\/messages.json"\nGUESTBOOK_FILE = f"{BBS_DIR}\/guestbook.json"\nSTATS_FILE = f"{BBS_DIR}\/stats.json"\nMAX_CONNECTIONS = 4\n\n# ANSI codes (FujiNet compatible)\nCLEAR = "\\033[2J\\033[H"\nBOLD = "\\033[1m"\nRED = "\\033[31m"\nGREEN = "\\033[32m"\nYELLOW = "\\033[33m"\nCYAN = "\\033[36m"\nWHITE = "\\033[37m"\nRESET = "\\033[0m"\nCRLF = "\\r\\n"\n\nactive_users = []\nlock = threading.Lock()\n<\/pre><\/div>\n\n\n\n
messages.json<\/code>)<\/li>\n\n\n\n\n
0xFF<\/code> nasledovan\u00e9 2 bytmi)<\/li>\n\n\n\n\\r\\n<\/code>) namiesto samotn\u00e9ho \\n<\/code><\/li>\n\n\n\n\ndef recv_line(conn, echo=True, max_len=60):\n """Read a line from telnet client."""\n buf = ""\n while True:\n data = conn.recv(1)\n if not data:\n return None\n ch = data.decode("ascii", errors="replace")\n\n # Handle telnet IAC sequences\n if data == b"\\xff":\n conn.recv(2)\n continue\n\n if ch in ("\\r", "\\n"):\n if ch == "\\r":\n # consume trailing \\n or \\0\n conn.settimeout(0.1)\n try:\n conn.recv(1)\n except:\n pass\n conn.settimeout(300)\n send(conn, CRLF)\n return buf\n\n if ch == "\\x08" or ch == "\\x7f": # backspace\n if buf:\n buf = buf[:-1]\n send(conn, "\\x08 \\x08")\n continue\n\n if len(buf) < max_len and ch.isprintable():\n buf += ch\n if echo:\n send(conn, ch)\n<\/pre><\/div>\n\n\n
\n\n\n\nKrok 3: Systemd slu\u017eba<\/h2>\n\n\n\n
\nsudo nano \/etc\/systemd\/system\/user-bbs.service\n<\/pre><\/div>\n\n
\n[Unit]<br>Description=USER BBS<br>After=network.target<br><br>[Service]<br>Type=simple<br>User=user<br>ExecStart=\/usr\/bin\/python3 \/home\/user\/bbs.py<br>Restart=always<br>RestartSec=5<br><br>[Install]<br>WantedBy=multi-user.target\n<\/pre><\/div>\n\n
\nsudo systemctl daemon-reload<br>sudo systemctl enable user-bbs<br>sudo systemctl start user-bbs\n<\/pre><\/div>\n\n\n
\n\n\n\nKrok 4: Firewall a bezpe\u010dnos\u0165<\/h2>\n\n\n
\n# Z\u00e1kladn\u00fd firewall\nsudo ufw allow 22\/tcp # SSH\nsudo ufw allow 6502\/tcp # BBS\nsudo ufw allow 80\/tcp # Web dashboard (volite\u013ene)\nsudo ufw enable\n\n# Fail2ban proti brute-force SSH \u00fatokom\nsudo systemctl enable fail2ban\nsudo systemctl start fail2ban\n<\/pre><\/div>\n\n\n
\n\n\n\nKrok 5: Port forwarding na routeri<\/h2>\n\n\n\n
N\u00e1zov<\/th> Protokol<\/th> Extern\u00fd port<\/th> Lok\u00e1lna IP<\/th> Lok\u00e1lny port<\/th><\/tr><\/thead> bbs<\/td> TCP<\/td> 6502<\/td> 192.168.x.x (IP v\u00e1\u0161ho Pi)<\/td> 6502<\/td><\/tr> ssh<\/td> TCP<\/td> 22<\/td> 192.168.x.x<\/td> 22<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n \n#!\/bin\/bash<br># wan_ip_monitor.sh - detekcia zmeny WAN IP<br>CURRENT=$(curl -s --max-time 10 ifconfig.me)<br>SAVED=$(cat \/home\/user\/wan_ip_last 2>\/dev\/null)<br><br>if [ "$CURRENT" != "$SAVED" ] && [ -n "$CURRENT" ]; then<br> echo "$CURRENT" > \/home\/user\/wan_ip_last<br> echo -e "Subject: WAN IP sa zmenila!\\n\\nNov\u00e1 IP: ${CURRENT}\\nStar\u00e1 IP: ${SAVED}" | msmtp vas@email.com<br>fi\n<\/pre><\/div>\n\n\ncrontab -e<\/code>):<\/p>\n\n\n\n*\/30 * * * * \/home\/user\/wan_ip_monitor.sh\n<\/pre><\/div>\n\n\n
\n\n\n\nKrok 5: Pripojenie z Atari XE\/XL<\/h2>\n\n\n\n
Varianta A: FujiNet (najjednoduch\u0161ia)<\/h3>\n\n\n\n
\n
\n
tnfs.vasweb.sk<\/code> (alebo va\u0161a dom\u00e9na\/IP)<\/li>\n\n\n\n6502<\/code><\/li>\n\n\n\n\n
Varianta B: SIO2PC + APE<\/h3>\n\n\n\n
\n
\n ATDT tnfs.vasweb.sk:6502\n<\/pre><\/div>\n\n\n
Varianta C: AspeQt \/ RespeQt<\/h3>\n\n\n\n
\n
Varianta D: R-Verter + Lantronix MSS100 (bez PC!)<\/h3>\n\n\n\n
\n
\n ATDT tnfs.vasweb.sk:6502\n<\/pre><\/div>\n\n\n
\n
\n\n\n\nZ\u00e1ver<\/h2>\n\n\n\n