Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Secure MySQL replication over SSH by keeping MySQL off the public internet, creating a dedicated key-authenticated SSH tunnel account, forwarding a loopback port on the replica, and limiting both VPS firewalls to the two servers. Use a least-privilege MySQL replication account, verify SSH host keys, supervise the tunnel, and monitor replication health and lag.
Antihost offers Linux VPS plans with full root access, unlimited traffic on a 1 Gbps port and a 14-day free trial.
SSH encrypts the replication path, but it does not provide MySQL’s certificate-based server identity checks. Choose native MySQL TLS instead, or in addition to SSH, when X.509 validation, explicit TLS protocol policy, or transport security independent of SSH is required.
As an Amazon Associate I earn from qualifying purchases.
Free tools Windows power users keep installed
One-click scans. No signup required.
The secure topology
The safest SSH design leaves the source MySQL listener private and makes the replica connect to a local port. The SSH client runs on the replica and forwards that local port through an SSH connection to the source VPS:
Replica mysqld -> 127.0.0.1:13306
SSH local forward over the VPS network
Source mysqld <- 127.0.0.1:3306In this arrangement, the replica never needs public access to TCP 3306. The source accepts MySQL traffic from its loopback interface (or a tightly restricted private interface), while SSH accepts connections only from the replica’s fixed address. A compromise of the tunnel account should not grant a shell or administrative access.
#1 Best Overall
- BLUE LIGHT BLOCKING GLASSES: Our blue light glasses for women boast UV400 protection, blocking harmful blue rays from computer screens. With these bluelight glasses women, you can enjoy gaming, reading, or watching TV with no worries of eye strain.
- EYE RELIEF: Our blue light glasses are engineered to reduce blurry vision or strain caused by prolonged screen time. These womens blue light glasses aid in better sleep by preventing blue light from disrupting your natural sleep cycle, helping you fall asleep faster and enjoy a more restful night's sleep, making them the perfect christmas present.
- COMFORTABLE: Crafted from durable material, our trendy blue light glasses for woman or blue light glasses men ensure long-lasting comfort. The high-transmittance lenses accessories, gamer gifts for men, help keep your eyes relaxed. Perfect stocking stuffers, gifts for gamers men, christmas gifts for men, halloween costumes.
- LIGHTWEIGHT: These clear blue light glasses feature a lightweight frame, meaning they’ll stay comfy for long-term wear. Perfect as blue blockers glasses for women or mens blue light glasses, these non-prescription fake glasses for men can be worn throughout the day. The blue light blocking glasses women feature polycarbonate HD lenses, which are anti-reflective and restore true color.
- WORRY-FREE PURCHASE: If you experience any issues, our support team is ready to assist you quickly. These are the perfect costume glasses for cosplay dressing up.
MySQL’s replication-security guidance calls for protecting replication data in transit, protecting binary and relay logs at rest, and applying privilege checks to replication appliers. SSH can provide the encrypted transport, but the rest of the MySQL and operating-system security model still applies.
What you need before configuring it
- Two VPS instances running compatible MySQL releases: one source and one replica.
- A stable private or public address for each VPS, with a firewall that can express source-address restrictions.
- Administrative access to both operating systems and MySQL instances during setup.
- An SSH server on the source and an SSH client on the replica.
- A dedicated directory for the replication key, readable only by the account or service that opens the tunnel.
- A plan for supervising and alerting on the tunnel process; an SSH process that exits silently stops replication.
- Encrypted backups or other protection for binary logs, relay logs, MySQL credentials, and SSH private keys.
Record the source address, replica address, SSH port, source MySQL bind address, and local forwarded port before changing firewall rules. The example below uses SSH port 22 and local port 13306; substitute the values used by your VPS network.
Step 1: Keep the source MySQL listener private
Configure the source MySQL server to listen only on loopback or on a private network interface reachable by the tunnel. Do not bind it to an unrestricted public address. After restarting or reloading MySQL as required by your distribution, confirm that the listener is on the intended address and port.
The SSH forward terminates on the source VPS itself, so the source-side destination in the forward can be 127.0.0.1:3306. If your design uses a private interface instead, bind MySQL to that interface and restrict the destination to the replica’s private route.
Firewall policy
| Traffic | Allow from | Allow to | Purpose |
|---|---|---|---|
| SSH | Replica’s fixed address only | Source VPS, TCP 22 (or your chosen SSH port) | Maintains the encrypted tunnel |
| MySQL | Loopback, or the explicitly chosen private interface | Source VPS, TCP 3306 | Receives the forwarded connection |
| Public TCP 3306 | Everyone | Source VPS | Do not permit |
| Unrelated inbound services | Only their documented administration or application networks | Each VPS | Preserves the host’s general attack-surface policy |
Apply the cloud firewall and the host firewall consistently. A rule at only one layer is not a substitute for the other. After deployment, perform an external reachability check from a network that is not one of the two VPS instances and verify that public TCP 3306 is not reachable.
Step 2: Create a tunnel-only operating-system account
On the source VPS, create a dedicated account such as repl-tunnel. Give it no interactive shell and no sudo or administrative groups. Its sole purpose is to accept the port-forwarding session.
Rank #2
- WINDEX GAMING WIPES: effortlessly clean all your gaming gear and gaming electronics in one easy step with our new Windex Gaming Wipes
- AMMONIA FREE: our ammonia-free formula is safe to use on all of your favorite gaming equipment like consoles, headsets, controllers, screens, keyboards, and more
- PRE-MOISTENED WIPES: each wipe instantly removes dust, dirt, and stubborn smudges and fingerprints leaving a streak-free shine
- ANTI-STATIC: great for cleaning and wiping down your gaming gear and electronics leaving behind no visible residue
- COMPACT RESEALABLE PACKAGE: store your pack of Windex Gaming Wipes anywhere in your home for whenever a quick and easy wipedown is needed
On the replica, create a protected directory for the private key and generate an Ed25519 key:
sudo install -d -m 700 /etc/mysql-repl
sudo ssh-keygen -t ed25519 -f /etc/mysql-repl/repl_ed25519Copy only the public key to the source account’s authorized_keys. Set ownership and permissions so that unprivileged users cannot replace the key or read the private key. Restrict the key entry to the replica’s address and forwarding use. OpenSSH key options commonly used for this purpose include a source-address restriction, disabling agent and X11 forwarding, disabling PTY allocation, and permitting only the forwarding operation. The exact syntax depends on your OpenSSH version; validate the resulting entry with the server’s configuration checks before enabling it.
Verify the source host key
Obtain the source VPS host-key fingerprint through a trusted channel, then place the expected key in the replica service account’s known-hosts file. Test a normal SSH connection and confirm that the fingerprint matches. Never “fix” a mismatch by adding StrictHostKeyChecking=no; disabling host-key checking permits a man-in-the-middle attacker to impersonate the source VPS.
Step 3: Open the local SSH forward
From the replica, test the forward in the foreground so errors are visible:
ssh -i /etc/mysql-repl/repl_ed25519 -N
-L 127.0.0.1:13306:127.0.0.1:3306
repl-tunnel@SOURCE_VPSThe -N option requests no remote shell. The -L option binds local port 13306 to the source VPS’s loopback port 3306. Bind the local end to 127.0.0.1, not to all interfaces; otherwise another machine could use the replica as an unintended MySQL proxy.
With the SSH process running, connect from the replica to 127.0.0.1:13306 using a MySQL client and confirm that the server identity, version, and expected account behavior match the source. Do not treat a successful TCP connection alone as proof that you reached the correct MySQL instance.
Rank #3
- Ergonomic & Adjustable Design: Fight "text neck" and improve your posture. Designed for comfort, it offers an adjustable height (7.1in-8.5in) (1.4in adjustable range) and angle (5°-85°) Please note: cell phone stand is only 9 inches tall—the length of a standard pencil
- Without blocking subtitles Perfect for office desk Tiktok Face Time Zoom video—this is the ultimate kitchen desk essential for phones! Perfect viewing experience while reducing neck back strain, A must-have for gamers streamers desk, and anyone who values both style and support!
- Sleek & Stable Design fits Otterbox Case: Say goodbye to bent cables, tangles, and tip-overs! LISEN’s stylish adjustable desk phone holder features a built-in charging hole and smart cable management, keeping your phone secure and your workspace clutter-free cool gadgets for men
- ANTI-SLIP DESIGN free hands: The under 10.00 items easy gadgets back and the bottom of this kitchen essentials for women are fully covered by anti-skid silicone, which LISEN stand up desk decor can provide maximum protection device from any scratches and slides
- Your Perfect Viewing Companion:If your product arrives damaged or breaks within 365 days, reach out to LISEN for a quick and hassle-free solution. Struggling with assembly, like tightening the screw? We’ve got your back! Your experience matters to us. (Product including: phone Holder stand*1, screw*1, hexagon screwdriver*1, specification*1)
Make the tunnel persistent
Run the tunnel under the VPS distribution’s service manager rather than from a shell, terminal multiplexer, or cron job. Configure automatic restart after failure and after boot, and ensure the service uses the dedicated key and known-hosts file. Keep logs available to your monitoring system. A tunnel can remain connected while the MySQL replication threads are stopped, so monitor both layers independently.
Before production use, reboot the replica and confirm that the service starts only after networking and name or address resolution are available. Then stop the SSH process deliberately and verify that the supervisor restarts it and that replication recovers without manual intervention.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesStep 4: Create a least-privilege MySQL replication account
Create a MySQL account used only by the replication channel. Restrict its host pattern to the address that MySQL actually sees for the connection: with a loopback tunnel this may be the local source host, while a private-interface design may present a different address. Confirm the observed source address in MySQL connection metadata before choosing the restriction.
Use a long, unique password generated for this account and store it in the replication configuration’s protected credential mechanism, not in shell history, a ticket, or an unencrypted script. Grant only the replication privileges required by your exact MySQL release. Do not grant general administration, file access, table-modification, or privilege-management rights.
MySQL’s privilege names and replication terminology vary by release. Review the privilege requirements for the source and replica versions, then remove any temporary setup grants after the channel is running. Where your release supports replication-applier privilege checks, enable and use them so that replicated statements cannot silently gain broader authority than intended.
Step 5: Point the replication channel at the forwarded port
Configure the replica’s channel to use host 127.0.0.1 and port 13306, together with the dedicated replication account and the source’s replication coordinates or GTID settings. MySQL 8.0.23 and later use the syntax CHANGE REPLICATION SOURCE TO. Older releases used the now-deprecated CHANGE MASTER TO terminology. Use the command form supported by the installed release; do not copy a newer command onto an older server without checking its manual.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Rank #4
- Easy Installation: Our gaming lights have been designed to enhance your entertainment experience. Simply position the led light bar next to your TV or game console to create a game room environment with ease. They come with USB power and a 60 inch cord for direct mounting and mobility
- Audio Syncing & Extensive Mode: The built-in high-sensitivity music sensor allows you to sync the TV led lights to your favorite music. Lights react and move to the beat of music, film and game audio, creating an incredible immersive sound and light experience – and all without the need for an additional hub. You can choose from 64+ patterns, including strobe, illusion, jump, energy, gradient, running, chasing, fluttering mode etc. Each mode can be applied to different scenes
- 64+ Chasing IC+RGB & W Effect: The independent control design of IC+RGB and white all-in-one multifunctional rgbw led bar lights monitor backlight allows you to easily switch the led lights for desk between IC+RGB and white to enjoy a variety of lighting effects, you can choose white lighting mode with high brightness for better illumination when working, etc. Choose IC+RGB lighting mode when you need to create an entertaining atmosphere for the light show, 16 million colours of Color changing rgb light bar let you dance to the beat and create a dynamic party atmosphere
- Dynamic and Dimmable Lights: 1%-full brightness free brightness adjustment gives you the flexibility to adjust dimmable led light bar for room decorations or a variety of occasions
- USB Powered: USB light bars for room can be powered by powernank, usb charger, TV, Monitor, laptop PC mainframe, making behind TV led lighting bar easy to install in any location.TV led lights are powered by the TV usb interface / PC mainframe, can be turned on/off synchronously with TV / PC
Apply the change while the channel is stopped if your release requires that sequence, start the channel, and inspect both I/O and SQL (applier) status. A running SSH process is not sufficient: the channel must authenticate to MySQL, fetch events, and apply them.
How SSH compares with native MySQL TLS
Both approaches can encrypt replication traffic, but they answer different identity and policy requirements.
| Property | SSH tunnel | Native MySQL TLS |
|---|---|---|
| Encryption in transit | Yes, for the forwarded TCP connection | Yes, negotiated by MySQL |
| Server identity | Verified through the SSH host key; it is not an X.509 MySQL identity | Can validate X.509 certificates and certificate names |
| Protocol policy | Controlled by SSH configuration and implementation | MySQL can enforce configured TLS versions and cipher policy |
| Operational dependency | Requires an SSH account, key, firewall rule, and supervised process | Requires a certificate authority, certificates, renewal, and MySQL TLS settings |
| Best fit | Environments that already manage tightly restricted SSH access | Organizations needing certificate-based mutual authentication or transport security independent of SSH |
SSH is a practical choice when both VPS instances already have disciplined host-key and key-account management. Native TLS is preferable when a certificate authority must identify the MySQL server, when protocol versions are centrally governed, or when the database transport must remain protected even if SSH policy changes. Running TLS inside an SSH tunnel can add defense in depth, but it also creates two systems to configure, rotate, monitor, and troubleshoot.
Verification after deployment
- Check the SSH identity: compare the stored source host-key fingerprint with the trusted value and confirm that the tunnel service uses the intended private key.
- Check local binding: verify that port 13306 is listening only on
127.0.0.1on the replica. - Check MySQL identity: connect through the forwarded port and verify the expected server version and instance identity.
- Check replication state: inspect the channel status and confirm that the I/O and SQL threads are running without authentication, connection, or applier errors.
- Check lag: observe replica delay during normal write load and alert when lag grows continuously rather than returning to its normal range.
- Check restart behavior: reboot the replica, terminate the tunnel process, and restart MySQL to confirm that supervision and channel recovery work.
- Check exposure: review both VPS firewall rules and an external scan to verify that source TCP 3306 is not publicly reachable.
- Check TLS when used: inspect the negotiated TLS version and certificate validation result; a connection that merely succeeds does not prove certificate identity was checked.
Common failures and precise fixes
The tunnel exits and replication stops
Inspect the service logs for authentication failures, host-key changes, network timeouts, or a refused source-side forward. Ensure the supervisor restarts the process and that alerting distinguishes a dead tunnel from a stopped MySQL channel. Do not solve recurring disconnects by removing host-key verification.
SSH connects, but MySQL refuses the replication account
Confirm that the replica is using the forwarded port, the intended username, and the correct credential. Check the host restriction on the MySQL account against the address MySQL records for the incoming session. Verify that the account has the replication privileges required by the installed release and no accidental password rotation has left the channel with an old secret.
The source is reachable on public port 3306
Recheck the MySQL bind address, cloud firewall, host firewall, IPv4 rules, and IPv6 rules. Remove broad ingress rules rather than relying on the SSH tunnel as a compensating control. The source listener should be reachable only through loopback or the explicitly selected private network path.
Best Value
- Compatible with Wide Screens - To ensure compatibility with the dual monitor mount, your each monitor must meet three conditions at the same time: First, computer screens size range: 13 to 32 inches. Second, screen weight range: 4.4 to 19.8 lbs. Third, the back of the monitor screen must have VESA mounting holes with a pitch of 75x75mm or 100x100mm.
- Regarding the compatibility with desks - Your desk must meet three conditions at the same time: First, desk material: Only wooden desks are recommended, plastic or glass desks cannot be used. Second, desk thickness range: 0.59" - 3.54". Third, the bottom of the desk should not have any cross beams or panels, as this will interfere with installation. We recommend carefully checking that your desk and monitors meets all above conditions before purchasing.
- Dual C-Clamp Hold - Worried your dual monitors might wobble or slip? Our upgraded base uses a larger platform plus a dual C-clamp structure to lock the dual monitor arm firmly to your desk. Each arm safely keeps your screens steady while you type, click and game—no shaking, no sliding, just a clean and secure setup you can trust every day. It also provides Grommet Mounting installation choice, both options ensure stable and secure fixation for your 0.59" - 3.54" desk.
- Full-Motion Adjustment For Comfortable View - Pull the screen closer when you’re deep in a spreadsheet, push it back to watch videos, or rotate to portrait for coding — moving everything smoothly with just one hand. The monitor stand offers +85°/-50° tilt, ±90° swivel and 360° rotation. Raise your monitor up to 15.75″ to support a healthy sitting posture. Whether you’re working from home, gaming through the night, or switching between video calls and documents, getting the screens to your natural line of sight helps relieve neck, shoulder and back strain so you can stay focused longer with less fatigue.
- Keep Your Desk Organized: By lifting both screens off the desktop, this dual monitor stand opens up valuable space for your keyboard, notebook, docking station or a simple, clutter-free work area. Built-in cable management guides wires along the arms, keeping cords out of sight and out of the way. Enjoy a tidy, modern workstation that looks as good as it feels to use.
Replication connects but does not apply events
Separate transport from application diagnosis. If the I/O thread is healthy but the SQL thread is stopped, inspect applier errors, schema or data conflicts, and privilege-check failures. If both threads stop after a source restart, verify that the channel’s source coordinates or GTID configuration still match the source’s retained binary logs.
Host-key verification fails after a VPS rebuild
Stop the channel and investigate the change through an independent administrative channel. A rebuild may legitimately generate a new host key, but an unexpected change can indicate interception. Replace the stored key only after confirming the new fingerprint, then restart the supervised tunnel and verify the MySQL server identity again.
Protecting logs, keys, and credentials
Encryption in transit does not protect data written to disk. Restrict filesystem access to binary logs, relay logs, MySQL configuration files, the SSH private key, known-hosts data, and service logs. Encrypt backups and snapshots that contain those files. Rotate the SSH key and replication password through a planned maintenance procedure, testing reconnection before revoking the old credential.
Keep the tunnel account separate from human administrator accounts. Human access should use individually attributable keys and normal administrative controls; the replication tunnel should have no shell and no unrelated permissions. Review authorized keys and firewall rules periodically, especially after an address change or VPS migration.
Version and terminology notes
Use the command vocabulary supported by the server you are actually running. MySQL 8.0.23 and later document CHANGE REPLICATION SOURCE TO; earlier releases document CHANGE MASTER TO. The older wording is deprecated in newer releases, but it may still be required on an older replica. Privilege requirements, TLS defaults, and replication options can also differ between releases, so apply the matching version of the MySQL Reference Manual when finalizing the account and channel configuration.
Recommended Free Tools
When to choose SSH, TLS, or both
- Choose SSH alone when the VPS fleet already has reliable host-key verification, restricted key accounts, private firewall rules, and a service manager for persistent forwards.
- Choose native MySQL TLS when certificate identity, mutual authentication, explicit protocol versions, or a database-specific transport policy is mandatory.
- Use both when the additional encryption and independent identity layers justify the operational cost of managing two secure transports.
Regardless of transport, the non-negotiable controls are a private MySQL listener, narrow firewall rules, a dedicated tunnel identity, a least-privilege replication account, protected logs and credentials, and continuous checks of tunnel health, channel state, lag, and external exposure.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
