{"id":3909,"date":"2026-10-09T11:13:54","date_gmt":"2026-10-09T11:13:54","guid":{"rendered":"https:\/\/nownodes.io\/blog\/?p=3909"},"modified":"2026-10-09T11:13:55","modified_gmt":"2026-10-09T11:13:55","slug":"geth-how-to-install-and-run-an-ethereum-execution-client","status":"publish","type":"post","link":"https:\/\/nownodes.io\/blog\/geth-how-to-install-and-run-an-ethereum-execution-client\/","title":{"rendered":"Geth: How to Install and Run an Ethereum Execution Client"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Geth (short for go-ethereum) is the Go-language software that turns an ordinary computer into a full Ethereum node. It processes transactions, runs smart contract code, and keeps a verified copy of Ethereum&#8217;s current state. It&#8217;s the oldest Ethereum client and still the most widely used.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Geth no longer runs Ethereum on its own. Since The Merge in 2022, every node needs two programs working together: an execution client like Geth and a separate consensus client that tracks proof-of-stake. You run both, side by side.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Geth is also just one option. Reth, Nethermind, and Besu do the same job with different trade-offs, and plenty of people who need Ethereum data never run a client at all. This guide covers what Geth does, the hardware it needs, how to install and sync it, and when running your own node is actually worth it.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-an-ethereum-execution-client-actually-does\">What an Ethereum Execution Client Actually Does<\/h2>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"972\" height=\"1024\" src=\"https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-64-972x1024.png\" alt=\"\" class=\"wp-image-3911\" srcset=\"https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-64-972x1024.png 972w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-64-285x300.png 285w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-64-767x808.png 767w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-64.png 1222w\" sizes=\"auto, (max-width: 972px) 100vw, 972px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">An execution client is the part of a node that runs transactions and smart contract code. It stores account balances and contract storage, and it enforces the rules for changing them through the Ethereum Virtual Machine. Send a transaction, and the execution client checks it, runs it, and updates the state.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before 2022, a single client like Geth handled everything end to end. <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/nodes-and-clients\/run-a-node\/\" rel=\"nofollow noopener noreferrer\">The Merge<\/a> split that work in two. The consensus client now decides which blocks are valid under proof-of-stake, and the execution client processes what&#8217;s inside them.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"how-the-execution-and-consensus-clients-connect\">How the Execution and Consensus Clients Connect<\/h3>\n\n\n<p class=\"wp-block-paragraph\">The two programs talk locally through the Engine API, authenticated with a shared secret stored in a <code>jwtsecret<\/code> file. You generate that file once and point both clients at it. Neither client is optional: an execution client with no consensus client, or the reverse, is not a working node.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"why-run-your-own-node-instead-of-trusting-someone-elses\">Why Run Your Own Node Instead of Trusting Someone Else&#8217;s?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">A full node lets you verify Ethereum yourself instead of trusting a third party&#8217;s answer. Your node checks every block against the protocol rules, so nobody can hand you a fake balance or a censored transaction history.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That independence is the main reason to run one. A few groups need it more than most:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Solo stakers<\/strong> \u2014 a validator has to be backed by its own execution and consensus clients to propose and attest to blocks.<\/li>\n\n\n\n<li><strong>Developers<\/strong> \u2014 a local node gives fast, private, unmetered access while building and testing.<\/li>\n\n\n\n<li><strong>Businesses and researchers<\/strong> \u2014 anyone who needs dependable data without relying on an outside provider&#8217;s uptime or rate limits.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The catch is cost. A node isn&#8217;t free to run, and the requirements have climbed steadily as the chain has grown.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-you-need-to-run-a-full-node\">What You Need to Run a Full Node<\/h2>\n\n\n<p class=\"wp-block-paragraph\">This guide assumes a full node, the standard setup for verifying the chain; <a href=\"https:\/\/nownodes.io\/blog\/types-of-blockchain-nodes\">full, light, and archive nodes<\/a> each trade storage against completeness. Running one in 2026 takes a modern machine with a large, fast SSD. The Ethereum Foundation&#8217;s current guidance, based on EIP-7870, separates a working minimum from a comfortable recommendation.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Component<\/th><th>Minimum<\/th><th>Recommended (full node)<\/th><\/tr><\/thead><tbody><tr><td>CPU<\/td><td>2+ cores<\/td><td>4+ cores (8+ for validating)<\/td><\/tr><tr><td>RAM<\/td><td>16 GB (32 GB for stability)<\/td><td>32 GB (64 GB for validating)<\/td><\/tr><tr><td>Storage<\/td><td>2 TB NVMe SSD<\/td><td>4 TB NVMe SSD<\/td><\/tr><tr><td>Bandwidth<\/td><td>25+ Mbit\/s<\/td><td>50 Mbit\/s down, 15+ up<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A few details matter more than the raw figures. The drive has to be NVMe, because syncing is heavy on disk input\/output and <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/nodes-and-clients\/run-a-node\/\" rel=\"nofollow noopener noreferrer\">slower SATA SSDs or cheap DRAM-less and QLC drives<\/a> struggle to keep up. The 2 TB minimum is already tight, and ethereum.org notes it will likely be exceeded by 2027. Use an unmetered connection, too, since the initial sync alone can blow past a monthly data cap.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-download-and-set-it-up\">How to Download and Set It Up<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Installing Geth is the quick part. The real work is syncing and running the second client alongside it.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Install the software.<\/strong> On macOS, run <code>brew install ethereum<\/code>. On Ubuntu, add the official PPA and run <code>apt-get install ethereum<\/code>. You can also pull the Docker image (<code>ethereum\/client-go<\/code>) or grab a prebuilt binary from the Geth downloads page.<\/li>\n\n\n\n<li><strong>Pick and install a consensus client.<\/strong> Lighthouse, Nimbus, Teku, Prysm, and Lodestar are the main choices. Any one of them pairs with Geth.<\/li>\n\n\n\n<li><strong>Create the shared secret.<\/strong> Generate a <code>jwtsecret<\/code> file and note its path. Both clients will read it.<\/li>\n\n\n\n<li><strong>Start Geth.<\/strong> Launch it with the Engine API enabled and pointed at the secret file. It begins finding peers right away.<\/li>\n\n\n\n<li><strong>Start the consensus client.<\/strong> Point it at the same secret and at a checkpoint-sync URL so it reaches the chain head in seconds rather than days.<\/li>\n\n\n\n<li><strong>Let it sync.<\/strong> Geth uses snap sync by default, downloading a recent state snapshot instead of replaying all of history.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/geth.ethereum.org\/docs\/getting-started\" rel=\"nofollow noopener noreferrer\">official getting-started docs<\/a> list the exact flags for each platform.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"how-long-it-takes-to-sync-and-how-much-disk-it-uses\">How Long It Takes to Sync and How Much Disk It Uses<\/h3>\n\n\n<p class=\"wp-block-paragraph\">A snap-synced Geth node needs roughly 500 GB and up to start, plus about 200 GB more for the consensus client&#8217;s beacon data. Both numbers keep growing as the chain extends.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sync time depends on your hardware, your bandwidth, and your sync strategy. Fast NVMe storage and a solid connection can bring a fresh node current in a few hours; weaker hardware stretches that out. There&#8217;s no fixed number, which is part of why some people skip the wait entirely.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"does-ethereum-still-have-a-light-node-option\">Does Ethereum Still Have a Light Node Option?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Not the way it used to. Geth once shipped a light client mode, the Light Ethereum Subprotocol (LES), that synced on minimal data. It was designed for the old proof-of-work architecture and stopped being viable after The Merge, so it was dropped.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Light verification now lives at the consensus layer, where <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/nodes-and-clients\/light-clients\/\" rel=\"nofollow noopener noreferrer\">light clients<\/a> follow the chain using sync committees rather than downloading full state. That tooling is still maturing. For most people who can&#8217;t commit a 4 TB SSD to the task, the practical substitute isn&#8217;t a light node at all \u2014 it&#8217;s connecting to someone else&#8217;s node through an API.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"geth-vs-reth-vs-nethermind-vs-besu\">Geth vs. Reth vs. Nethermind vs. Besu<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Four execution clients cover almost the entire network, and they&#8217;re genuinely different under the hood.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Geth<\/strong> \u2014 the original, written in Go. The most battle-tested and best-documented, which is exactly why it&#8217;s overrepresented.<\/li>\n\n\n\n<li><strong>Nethermind<\/strong> \u2014 written in C#\/.NET, fast and feature-rich, and popular with staking operators.<\/li>\n\n\n\n<li><strong>Besu<\/strong> \u2014 written in Java under an Apache 2.0 license, which makes it a common pick for enterprises with compliance needs.<\/li>\n\n\n\n<li><strong>Reth<\/strong> \u2014 the newest, written in Rust by Paradigm and production-ready since its 1.0 release. It&#8217;s lean on disk and growing fast.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Client<\/th><th>Language<\/th><th>Snap sync<\/th><th>Archive node size<\/th><th>Network share (2026)<\/th><\/tr><\/thead><tbody><tr><td>Geth<\/td><td>Go<\/td><td>Yes (~500 GB+)<\/td><td>12 TB+<\/td><td>~50%<\/td><\/tr><tr><td>Nethermind<\/td><td>C#\/.NET<\/td><td>Yes (~500 GB+)<\/td><td>12 TB+<\/td><td>~25%<\/td><\/tr><tr><td>Besu<\/td><td>Java<\/td><td>Yes (~800 GB+)<\/td><td>12 TB+<\/td><td>~10%<\/td><\/tr><tr><td>Reth<\/td><td>Rust<\/td><td>No (pruned ~1.2 TB)<\/td><td>2.2 TB+<\/td><td>~8%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Disk sizes: ethereum.org. Network shares are approximate and shift over time; <a href=\"https:\/\/clientdiversity.org\/\" rel=\"nofollow noopener noreferrer\">clientdiversity.org<\/a> tracks them live.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There&#8217;s a reason the exact split matters, not just the feature lists. If one execution client runs more than two-thirds of the network and ships a bug, it could finalize a bad chain and put staked funds at risk. Geth&#8217;s share has fallen from <a href=\"https:\/\/blog.stake.fish\/the-state-of-ethereum-in-2026\/\" rel=\"nofollow noopener noreferrer\">around 85% to roughly half<\/a> as operators deliberately moved to minority clients. Running a less common client is one of the few things a single node operator can do that measurably helps the whole network.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For archive data \u2014 the complete historical state \u2014 the clients diverge sharply. A Geth archive node needs 12 TB and up, while Erigon (a separate Go client) and Reth reach the same result in a fraction of the space through aggressive pruning. If historical queries are your goal, that gap is hard to ignore.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"running-a-node-vs-managed-node-access\">Running a Node vs. Managed Node Access<\/h2>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65-1024x512.png\" alt=\"\" class=\"wp-image-3912\" srcset=\"https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65-1024x512.png 1024w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65-300x150.png 300w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65-768x384.png 768w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65-1536x768.png 1536w, https:\/\/nownodes.io\/blog\/wp-content\/uploads\/2026\/10\/image-65.png 1774w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Not everyone who needs Ethereum data should run a client. The choice comes down to what you&#8217;re optimizing for.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Run your own node when control is the point: solo staking, censorship resistance, fully private data, or infrastructure you own outright. In return you take on the 4 TB SSD, the sync, the client upgrades, and the uptime.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use managed access when you&#8217;d rather skip all of that. A provider runs the clients and gives you an endpoint your application calls. NOWNodes offers <a href=\"https:\/\/nownodes.io\/nodes\/ethereum-eth\">Ethereum node access<\/a> across 120+ networks this way, including a <a href=\"https:\/\/nownodes.io\/public-endpoints\">free public endpoint<\/a> (capped at 5 requests per second) for prototyping, with no account needed to start.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you want a dedicated machine but not the upkeep, NOWNodes dedicated nodes let you choose the execution client \u2014 Geth or Erigon \u2014 along with the deployment region and advanced methods like Trace and Debug. You get a specific client&#8217;s behavior without running the hardware. The trade-off is the mirror image of self-hosting: less control over the raw machine, but no sync to babysit and no late-night upgrades.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">Conclusion<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Geth is the default way to run an Ethereum execution client, and for good reason \u2014 it&#8217;s mature, documented, and proven. But &#8220;default&#8221; and &#8220;best for you&#8221; aren&#8217;t the same thing. If you&#8217;re staking or you care about client diversity, a minority client like Nethermind or Reth may be the more responsible choice, and Reth or Erigon will save you terabytes when you need archive data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The larger question is whether to run a client at all. Self-hosting buys independence and control at the cost of hardware and maintenance. Managed access buys speed and simplicity at the cost of owning the machine. Choose the client by your goal, and the hosting model by how much of the plumbing you actually want to run yourself.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">FAQ<\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"is-geth-free-to-use\">Is Geth free to use?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Yes. Geth is open-source software released under the GNU GPL and LGPL licenses, free to download, run, and modify. Your only real costs are the hardware and the electricity to keep it running.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"can-i-run-an-ethereum-node-on-a-raspberry-pi\">Can I run an Ethereum node on a Raspberry Pi?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">It&#8217;s possible but marginal. A Pi can run the clients only with a fast external NVMe SSD attached, and performance sits right at the edge of what&#8217;s workable. Most people who go this route use purpose-built staking kits rather than a bare board, and a small desktop or mini PC is a steadier choice.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"whats-the-difference-between-a-full-node-and-an-archive-node\">What&#8217;s the difference between a full node and an archive node?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">A full node keeps Ethereum&#8217;s current state and recent history, pruning older intermediate data \u2014 around 500 GB and up with snap sync. An archive node keeps every historical state back to genesis, which is why a Geth archive node needs 12 TB or more. Most users only need a full node; archive nodes are for explorers, analytics, and deep historical queries.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"how-is-geth-different-from-erigon\">How is Geth different from Erigon?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Both are Ethereum execution clients written in Go, but Erigon is built for storage efficiency. An Erigon archive node fits in roughly 2.5 TB versus 12 TB and up for Geth, thanks to a different database design. Geth is the more widely used and better-documented of the two; Erigon is the common pick when archive data or disk space is the priority.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"is-it-safe-to-run-an-ethereum-node-from-home\">Is it safe to run an Ethereum node from home?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">A plain node holds no funds and exposes no keys, so there&#8217;s little at stake beyond bandwidth and a connection to the peer network. You&#8217;ll want a firewall and, ideally, an open port so other peers can reach you. The risk profile only changes if you also run a validator, which adds staking keys you have to protect.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geth (short for go-ethereum) is the Go-language software that turns an ordinary computer into a full Ethereum node. It processes transactions, runs smart contract code, and keeps a verified copy of Ethereum&#8217;s current state. It&#8217;s the oldest Ethereum client and still the most widely used. Geth no longer runs Ethereum on its own. Since The [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3910,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_lmt_disableupdate":"","_lmt_disable":"","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[102],"tags":[],"class_list":["post-3909","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev-report"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Install and Run Geth in 2026: Ethereum Node Guide<\/title>\n<meta name=\"description\" content=\"What Geth is, the hardware a full Ethereum node needs, how to install and sync it, and how it compares to Reth, Nethermind, and Besu.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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