ProxMenux/web/messages/en/docs/help-info/network-commands.json

{
  "meta": {
    "title": "Proxmox Network Commands — ip, ping, ss, pve-firewall, iptables | ProxMenux",
    "description": "Reference of Proxmox VE host networking commands: ip / ip link / ip addr, ping, traceroute, mtr, ss, ethtool, dig, nslookup, plus pve-firewall, iptables and nftables for filtering. Bridge, bond and VLAN inspection.",
    "ogTitle": "Proxmox Network Commands — ip, ping, ss, pve-firewall, iptables",
    "ogDescription": "Reference of network commands for Proxmox VE — interface inspection, connectivity tests, monitoring, firewall (pve-firewall, iptables, nftables) and DNS lookups.",
    "twitterTitle": "Proxmox Network Commands | ProxMenux",
    "twitterDescription": "Network inspection, testing, configuration and firewall commands for Proxmox VE."
  },
  "header": {
    "title": "Network Commands",
    "description": "Curated reference for Proxmox host networking: interface info, connectivity tests, configuration, traffic monitoring and firewall management. Combines ip / ss / nmcli / ethtool / tcpdump / pve-firewall.",
    "section": "Help and Info"
  },
  "intro": {
    "title": "Quick interface inventory",
    "body": "<code>ip a</code> shows every interface with its IPs and MAC. <code>ip r</code> shows the routing table. Together they answer most \"is this interface configured correctly?\" questions in seconds."
  },
  "commandGroups": [
    {
      "title": "Network Information",
      "commands": [
        {
          "command": "ip a",
          "description": "Show network interfaces and IPs"
        },
        {
          "command": "ip r",
          "description": "Show routing table"
        },
        {
          "command": "ip -s link",
          "description": "Show traffic statistics per interface"
        },
        {
          "command": "brctl show",
          "description": "Show configured network bridges"
        },
        {
          "command": "cat /etc/network/interfaces",
          "description": "Show raw network configuration"
        }
      ]
    },
    {
      "title": "Network Testing",
      "commands": [
        {
          "command": "ping <host>",
          "description": "Check connectivity with another host"
        },
        {
          "command": "traceroute <host>",
          "description": "Trace route to a host"
        },
        {
          "command": "mtr <host>",
          "description": "Combine ping and traceroute in real-time"
        },
        {
          "command": "dig <domain>",
          "description": "DNS lookup for a domain"
        },
        {
          "command": "nslookup <domain>",
          "description": "Alternative DNS lookup"
        }
      ]
    },
    {
      "title": "Network Configuration",
      "commands": [
        {
          "command": "ifreload -a",
          "description": "Reload network configuration (ifupdown2)"
        },
        {
          "command": "ethtool <iface>",
          "description": "Show Ethernet device info"
        },
        {
          "command": "resolvectl status",
          "description": "Show DNS resolution status"
        },
        {
          "command": "nmcli device show",
          "description": "Show network device details (if NetworkManager is used)"
        },
        {
          "command": "ip link set <iface> up",
          "description": "Bring network interface up"
        },
        {
          "command": "ip link set <iface> down",
          "description": "Bring network interface down"
        }
      ]
    },
    {
      "title": "Network Monitoring",
      "commands": [
        {
          "command": "ss -tuln",
          "description": "Show listening ports (TCP/UDP)"
        },
        {
          "command": "netstat -tuln",
          "description": "Alternative to show listening ports"
        },
        {
          "command": "lsof -i",
          "description": "List open network files and connections"
        },
        {
          "command": "tcpdump -i <iface>",
          "description": "Capture packets on interface"
        },
        {
          "command": "iftop -i <iface>",
          "description": "Monitor bandwidth usage on interface"
        }
      ]
    },
    {
      "title": "Firewall Management",
      "commands": [
        {
          "command": "iptables -L -n -v",
          "description": "Show active firewall rules (iptables)"
        },
        {
          "command": "nft list ruleset",
          "description": "Show nftables rules"
        },
        {
          "command": "pve-firewall status",
          "description": "Check Proxmox firewall status"
        },
        {
          "command": "pve-firewall compile",
          "description": "Compile firewall rules for all nodes"
        },
        {
          "command": "pve-firewall reload",
          "description": "Reload Proxmox firewall rules"
        }
      ]
    }
  ],
  "iptablesTip": {
    "title": "iptables vs nftables",
    "bodyRich": "Modern Debian / Proxmox uses <strong>nftables</strong> as the underlying firewall engine. The classic <code>iptables -L -n -v</code> command still works as a translation layer, but the source of truth is <code>nft list ruleset</code>. <code>pve-firewall</code> commands are Proxmox's wrapper that emits nftables rules from the cluster firewall config."
  },
  "related": {
    "heading": "Related",
    "items": [
      {
        "href": "/docs/network",
        "label": "Network Management",
        "tail": " — ProxMenux interactive network tools (bridge analysis, persistent names, monitoring)."
      },
      {
        "href": "/docs/help-info/tools-commands",
        "label": "System CLI Tools",
        "tail": " — more network monitoring tools."
      },
      {
        "href": "/docs/help-info",
        "label": "Help and Info overview",
        "tail": "."
      }
    ]
  }
}