Diagnosing network latency spikes, packet loss, and routing hops across Linux servers has traditionally involved juggling multiple command-line utilities. Standard traceroute maps path hops but provides static one-off snapshots; ping measures continuous latency but lacks per-hop visibility; and legacy tools like mtr, while functional, offer limited visual customization and protocol flexibility.
Trippy (invoked via the trip command) is a modern, open-source network diagnostic tool written in Rust. It combines the capabilities of traceroute and ping into a responsive, interactive terminal user interface (TUI). Trippy supports multi-protocol probing (ICMP, UDP, and TCP), real-time round-trip time (RTT) histogram rendering, autonomous system (AS) lookups, and multi-path routing analysis. This guide covers how to install, configure, and troubleshoot networks with Trippy in Linux.
Core Advantages of Trippy
- Interactive TUI: Real-time animated hop tables with per-hop packet loss percentages, minimum, average, and maximum latencies.
- Multi-Protocol Tracing: Send ICMP echo packets, custom UDP payloads, or TCP SYN handshakes to bypass aggressive firewall filters.
- Hop Geometry & Multi-Path: Detects equal-cost multi-path (ECMP) routing splits where traffic traverses different network paths simultaneously.
- ASN & GeoIP Enrichment: Resolves Autonomous System Numbers (ASN) and geographic locations for intermediate transit providers on the fly.
Installing Trippy on Linux
Method 1: Distribution Package Managers
# Ubuntu / Debian (via PPA or modern apt repositories)
sudo apt update && sudo apt install -y trippy
# Arch Linux
sudo pacman -S trippy
# Fedora / CentOS / RHEL (via COPR)
sudo dnf copr enable fepitre/trippy
sudo dnf install -y trippy
Method 2: Using Cargo (Rust Universal)
If your distribution lacks native packages, install Trippy directly via Rust’s package manager:
cargo install trippy --locked
Granting Network Capabilities
Because opening raw network sockets for ICMP and custom TCP packet crafting requires elevated privileges, grant raw socket capabilities to the binary so it can run without sudo:
sudo setcap 'cap_net_raw+ep' $(which trip)
Running and Navigating Trippy
1. Basic Target Trace
Launch an interactive trace toward any domain or IPv4/IPv6 address:
trip 1.1.1.1
2. Essential Interactive Keyboard Shortcuts
| Keybinding | Function | Diagnostic Purpose |
|---|---|---|
| Up / Down | Select Intermediate Hop | Isolates a specific router along the path for granular analysis |
| Tab | Toggle View Modes | Cycles between hop table, detailed RTT charts, and frequency bars |
| p | Pause / Freeze Display | Locks live metrics to capture packet loss anomalies |
| r | Reset Counters | Clears packet counters to measure latency changes after network adjustments |
| q | Quit | Exits the interactive interface |
Advanced Tracing Scenarios
Bypassing Firewalls with TCP Tracing
When remote firewalls drop standard ICMP echo requests, perform a TCP SYN trace against common web server ports:
trip example.com -p tcp -P 443
Enabling ASN and DNS Reverse Resolution
To inspect which telecommunications carrier or cloud backbone (e.g. Cloudflare, AWS, Lumen) operates each intermediate hop, enable AS lookup flags:
trip 8.8.8.8 --dns-resolve-method resolv --tui-as-mode
Network Diagnostic Best Practices
- Interpreting Intermediate Packet Loss: An intermediate hop displaying 100% loss while subsequent hops show 0% loss indicates that the intermediate router is deprioritising ICMP TTL expired generation—not that traffic is dropping. Only persistent loss that continues through the final destination represents genuine packet drop.
- Custom Packet Frequency: Use the
-iflag to adjust ping intervals (e.g.trip target.com -i 250ms) for high-frequency microburst testing.