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Root Access Daily

Root Access Daily

Trench-level VPS tips for webmasters who SSH in and fix it themselves. Cheap droplet stacks, nginx tweaks, and the commands that saved our uptime at 3am.

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Последние публикации

Архив редакционных публикаций канала за последние 30 индексируемых постов. Каждая страница — самостоятельная веб-копия с canonical на t.me.

Backups that dedup so storage stays tiny Daily tar backups eat disk because every snapshot is full. BorgBackup dedups at the block level, so 30 dailies cost barely more than one. — borg init --encryption=repokey /mnt/bac…
@RootAccessDaily
Pairs well with this channel @TheManagedMemo — Inside scoop on the managed hosting world: acquisitions, price hikes, platform… Quietly one of the better feeds in the space.…
@RootAccessDaily
IPv6-only VPS for half the price Providers charge $0.50-1/mo per IPv4 now. For backend boxes you don't need one. — grab an IPv6-only instance (Hetzner, some Vultr plans) — route outbound v4 through a free NAT64 gateway l…
@RootAccessDaily
1-second microcache = 10x throughput Dynamic WordPress on a budget box folds under traffic spikes. Cache anonymous hits for ONE second. — fastcgi_cache_valid 200 1s; — skip logged-in users: if ($http_cookie ~* "wordpress…
@RootAccessDaily
Put PHP sessions in RAM Every page load writes a session file to disk. On a cheap SSD that's wasted IOPS and wear. — add to /etc/fstab: tmpfs /var/lib/php/sessions tmpfs size=128M,mode=1733 0 0 — mount -a Sessions now li…
@RootAccessDaily
Cap a runaway process with systemd, not prayer One bad cron or PHP worker can OOM your whole $5 box. Don't tune php.ini blind, hard-cap it. — drop in /etc/systemd/system/php8.3-fpm.service.d/limit.conf — [Service] — Memo…
@RootAccessDaily
SSH hardening without locking yourself out Stop pasting global SSH rules that brick your own access. Use a Match block to harden everyone except your admin user. — Match User deploy —   PasswordAuthentication n…
@RootAccessDaily
Ditch disk swap, use zram Just did this on a $5 box: stopped thrashing the SSD and got compressed RAM instead. — apt install zram-tools — set ALGO=zstd and PERCENT=50 in /etc/default/zramswap — systemctl restart zramswap…
@RootAccessDaily
Turn on BBR. Your slow box gets faster for free. Default TCP congestion control (cubic) underperforms on cheap VPS with shaky network paths, especially to far-away visitors. Google's BBR squeezes way more throughput out …
@RootAccessDaily
zram beats a swapfile on a cheap SSD box A disk swapfile on a budget VPS is slow AND chews your IOPS allowance. zram makes a compressed swap device in RAM instead, so 'swapped' pages get compressed ~3:1 and stay in memor…
@RootAccessDaily
Rate-limit /wp-login before fail2ban even sees it fail2ban reacts after the hits land. nginx can refuse them at the door, no PHP touched. Throttle your login endpoints: — limit_req_zone $binary_remote_addr zone=login:10m…
@RootAccessDaily
Reading rec If this channel's your speed, @WPFromScratch runs a sharp feed on WordPress. Different angle, same depth — worth a follow.…
@RootAccessDaily
When the box OOMs, the kernel kills the wrong thing Under memory pressure the OOM-killer often nukes sshd or MySQL, and now you're locked out of a broken box. Protect your lifeline. Tell the kernel to kill sshd last: — e…
@RootAccessDaily
Patch 40 boxes without touching any of them You will not manually apt upgrade across a fleet. You'll forget, and an unpatched OpenSSL eats you. Set security patches to auto-apply and leave everything else alone: — apt in…
@RootAccessDaily
Your dead box isn't out of RAM. It's out of inodes. df -h says 40% free but everything's failing to write? Run df -i. A runaway log or a session dir with 2 million tiny files exhausts inodes long before disk space. The b…
@RootAccessDaily
IPv6-only VPS = same box for half the money Providers charge a premium for a dedicated IPv4 now that they're scarce. But you don't need one for a backend. Grab an IPv6-only instance ($2-3/mo at Hetzner/Netcup) and front …
@RootAccessDaily
One MySQL setting matters. The rest is noise. People paste 40-line my.cnf 'optimizations' from 2012. On a small box, exactly one knob moves the needle: — innodb_buffer_pool_size = 512M (set it to ~50-60% of RAM) This is …
@RootAccessDaily
Cache dynamic pages for 1 second. Yes, dynamic. WordPress on a tiny box dies the moment you hit the front page from Reddit. Microcaching: cache even logged-out dynamic HTML for ONE second. — fastcgi_cache_path /tmp/ngx l…
@RootAccessDaily
Your cron job is running 4 copies of itself right now That */5 job that pulls feeds? If it ever takes longer than 5 min, cron fires another while the first is still chewing. Now you've got overlapping processes eating RA…
@RootAccessDaily
Move your PHP sessions off the disk Every logged-in pageview writes a tiny session file to disk. On cheap VPS SSDs that's thousands of pointless writes burning your I/O and IOPS budget. Put them in RAM: — mount -t tmpfs …
@RootAccessDaily
php-fpm dynamic is lying to you on a small box Default pm = dynamic spawns and kills workers constantly, and each PHP worker eats 30-50MB. On a 2GB VPS that thrashing is your slowdown. Switch to static and do the math yo…
@RootAccessDaily
If you're into what we post, @HostingHeresy is the natural next follow — they work the Web hosting reviews beat hard. We debunk the affiliate-fueled hosting hype. The 'best host' lists are mostly paid……
@RootAccessDaily
The fail2ban jail that actually stops bot armies Basic sshd jail bans for 10 min, then the same IP comes back forever. Enable the recidive jail: it watches fail2ban's own log and nukes repeat offenders for a week. — [rec…
@RootAccessDaily
More swap won't save a 1GB box. Lower swappiness will. Everyone adds a 4GB swapfile and calls it done. On a 1GB VPS that just means your MySQL gets paged to disk and the site crawls. The real knob: — sysctl vm.swappiness…
@RootAccessDaily
Your nginx is stat()-ing the same file 10k times Just did this on a $5 box: 80 static sites, disk was wheezing on every request. The fix nobody mentions is open_file_cache. Drop this in the http block: — open_file_cache …
@RootAccessDaily
Admin CPU dropped 35% by throttling WP heartbeat Just did this on a $6 box where two editors working in wp-admin would spike PHP-FPM. Heartbeat was firing autosave/lock AJAX every 15s per open tab. Throttled it in a mu-p…
@RootAccessDaily
Stop compressing the same file on every request nginx gzip is fine, but it re-compresses your CSS on every single hit, burning CPU you don't have on a cheap box. Pre-compress static assets ONCE at deploy time: — find dis…
@RootAccessDaily
'Connection refused' under load and it's NOT your app Box is fine, app is fine, but new connections randomly drop during a traffic spike. Check dmesg for nf_conntrack: table full. The kernel's connection-tracking table m…
@RootAccessDaily
Daily snapshot backups in 6 lines, no tools Forget paid backup add-ons. rsync with --link-dest gives you hardlinked snapshots: every day looks like a full copy, but unchanged files cost zero extra disk. — rsync -a --link…
@RootAccessDaily
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