Edit Catatan Kendala - Pusat Solusi IT

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Sesuaikan rincian informasi data kendala atau perbaiki instruksi pemecahan masalah.

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Nama / Judul Kendala

Uraian Masalah / Kode Error

Langkah Pemecahan Masalah (Problem Solving)

<div><span style="font-size: 15.2px;">1. Cek apakah Zabbix Agent hidup (running)</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Di server cloudopenvpn2 (IP: 149.129.253.93):</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">CentOS / Rocky / Alma / RHEL</span></div><div><span style="font-size: 15.2px;">systemctl status zabbix-agent</span></div><div><span style="font-size: 15.2px;">systemctl restart zabbix-agent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Ubuntu / Debian</span></div><div><span style="font-size: 15.2px;">systemctl status zabbix-agent</span></div><div><span style="font-size: 15.2px;">systemctl restart zabbix-agent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Kalau statusnya inactive atau failed, berarti masalahnya di sini.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">2. Pastikan port agent terbuka (default 10050)</span></div><div><span style="font-size: 15.2px;">Test dari server Zabbix:</span></div><div><span style="font-size: 15.2px;">telnet 149.129.253.93 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">atau</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">nc -vz 149.129.253.93 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Kalau “Connection refused” ? service mati.</span></div><div><span style="font-size: 15.2px;">Kalau “Timed out” ? firewall blokir.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">3. Cek firewall server</span></div><div><span style="font-size: 15.2px;">FirewallD</span></div><div><span style="font-size: 15.2px;">firewall-cmd --list-all</span></div><div><span style="font-size: 15.2px;">firewall-cmd --add-port=10050/tcp --permanent</span></div><div><span style="font-size: 15.2px;">firewall-cmd --reload</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">UFW</span></div><div><span style="font-size: 15.2px;">ufw allow 10050/tcp</span></div><div><span style="font-size: 15.2px;">ufw reload</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">4. Cek konfigurasi /etc/zabbix/zabbix_agentd.conf</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Pastikan:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Server=<ip zabbix="" server=""></ip></span></div><div><span style="font-size: 15.2px;">ServerActive=<ip zabbix="" server=""></ip></span></div><div><span style="font-size: 15.2px;">Hostname=cloudopenvpn2</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Contoh:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Server=172.16.0.10</span></div><div><span style="font-size: 15.2px;">ServerActive=172.16.0.10</span></div><div><span style="font-size: 15.2px;">Hostname=cloudopenvpn2</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Setelah edit:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">systemctl restart zabbix-agent</span></div><div><br></div><div>5. Cek di Zabbix UI (Web)</div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Masuk ke:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Monitoring ? Hosts ? cloudopenvpn2 ? tab Latest Data</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Kalau merah, biasanya muncul error seperti:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Get value from agent failed</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">No such file or directory</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Connection timeout 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Klik ikon ZBX merah ? Details ? akan terlihat pesan error lengkap.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Analisa Tepatnya</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Dari server Zabbix:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">telnet 149.129.253.93 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Jadi masalahnya sekarang tinggal 2 kemungkinan:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">1. Port 10050 di server 149.129.253.93 tertutup</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Walaupun kamu bisa SSH, belum tentu port 10050 terbuka.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Cek dari server 149.129.253.93:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">sudo systemctl status zabbix-agent</span></div><div><span style="font-size: 15.2px;">sudo ss -tlnp | grep 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Harusnya muncul:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">LISTEN 0 0 0.0.0.0:10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Kalau tidak muncul ? agent tidak jalan.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">2. Firewall di server 149.129.253.93 memblokir port 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Cek:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">CentOS/RHEL (firewalld)</span></div><div><span style="font-size: 15.2px;">firewall-cmd --list-all</span></div><div><span style="font-size: 15.2px;">firewall-cmd --add-port=10050/tcp --permanent</span></div><div><span style="font-size: 15.2px;">firewall-cmd --reload</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">UFW (Ubuntu)</span></div><div><span style="font-size: 15.2px;">ufw status</span></div><div><span style="font-size: 15.2px;">ufw allow 10050/tcp</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">iptables</span></div><div><span style="font-size: 15.2px;">iptables -L -n | grep 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Sekarang kita pastikan dulu:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Tolong jalankan di server 149.129.253.93:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">1 Cek service agent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">systemctl status zabbix-agent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">2 Cek apakah port 10050 listen</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">ss -tlnp | grep 10050</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">3 Cek firewall</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">iptables -L -n</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">root@OpenVPN2 ~]# firewall-cmd --list-all</span></div><div><span style="font-size: 15.2px;">public</span></div><div><span style="font-size: 15.2px;">  target: default</span></div><div><span style="font-size: 15.2px;">  icmp-block-inversion: no</span></div><div><span style="font-size: 15.2px;">  interfaces:</span></div><div><span style="font-size: 15.2px;">  sources:</span></div><div><span style="font-size: 15.2px;">  services: dhcpv6-client ssh</span></div><div><span style="font-size: 15.2px;">  ports: 514/udp 514/tcp</span></div><div><span style="font-size: 15.2px;">  protocols:</span></div><div><span style="font-size: 15.2px;">  masquerade: yes</span></div><div><span style="font-size: 15.2px;">  forward-ports:</span></div><div><span style="font-size: 15.2px;">  source-ports:</span></div><div><span style="font-size: 15.2px;">  icmp-blocks:</span></div><div><span style="font-size: 15.2px;">  rich rules:</span></div><div><span style="font-size: 15.2px;">ChatGPT said:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Terlihat jelas dari output firewall Anda:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">services: dhcpv6-client ssh</span></div><div><span style="font-size: 15.2px;">ports: 514/udp 514/tcp</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Tidak ada port 10050 atau 10051 yang di-allow.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Maka Zabbix Server tidak bisa masuk ke agent (port 10050)</span></div><div><span style="font-size: 15.2px;">Dan Agent juga tidak bisa connect ke server (port 10051)</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Inilah penyebab semua error Active Check.</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"> SOLUSI: Izinkan port Zabbix</span></div><div><span style="font-size: 15.2px;">1 Izinkan port untuk Zabbix Agent (10050)</span></div><div><span style="font-size: 15.2px;">firewall-cmd --add-port=10050/tcp --permanent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">2 Izinkan port untuk Zabbix Server (10051)</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Jika server Zabbix ada di IP 149.129.253.93, maka izinkan juga:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">firewall-cmd --add-port=10051/tcp --permanent</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">3 Reload firewall</span></div><div><span style="font-size: 15.2px;">firewall-cmd --reload</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">4 Verifikasi</span></div><div><span style="font-size: 15.2px;">firewall-cmd --list-all</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">Harus muncul:</span></div><div><span style="font-size: 15.2px;"><br></span></div><div><span style="font-size: 15.2px;">ports: 514/udp 514/tcp 10050/tcp 10051/tcp</span></div>

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