iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Need a server to try this on? Antihost offers Linux VPS plans with NVMe storage, full root access and a 14-day free trial.
BGPalerter watches public BGP and RPKI data for your autonomous system (AS) and prefixes, then reports visibility loss, possible hijacks, route leaks, invalid announcements and other routing changes. On Ubuntu, the reliable setup is a Linux binary with config.yml, an ASN-generated prefixes.yml, and a dedicated systemd service. Budget at least 4 GB of RAM and enable swap before you start, particularly on a small cloud VM.
What BGPalerter monitors—and what it does not
BGPalerter is an application-level monitor. It connects directly to public BGP data repositories and evaluates the updates locally; the project states that no NTT servers are involved in the monitoring path. This means you can observe how the Internet sees your announcements without placing a BGP session on the Ubuntu host.
It is therefore different from inspecting a router’s local BGP session with commands such as show bgp. A router tells you what its configured neighbors and local RIB contain. BGPalerter tells you what public collectors report, which can reveal a propagation failure or an announcement that your own router does not recognize.
| Detection | What an alert means | Why it matters |
|---|---|---|
| Prefix visibility loss | A monitored prefix is no longer seen in the public data sources. | It can indicate an outage, withdrawal, filtering or a collector-path problem. |
| Hijack or unexpected origin | Another origin AS appears to announce your prefix, or an announcement conflicts with the expected origin. | Investigate immediately; the event may be a malicious hijack or an operational mistake. |
| RPKI-invalid announcement | An announcement does not satisfy the applicable Route Origin Authorization (ROA). | RPKI-validating networks may reject it. |
| Prefix not covered by a ROA | A monitored route has no matching authorization. | The route lacks origin-validation protection until a correct ROA is published. |
| ROA expiry or reachability problem | A ROA is expiring, unreachable or otherwise unavailable to validators. | Validation results can change when the authorization disappears. |
| Trust-anchor malfunction or ROA change | The RPKI validation chain or an authorization changed unexpectedly. | It can explain sudden validity changes even when your BGP configuration is unchanged. |
| Newly announced prefix | A prefix appears that is not in the expected monitored set. | Useful for catching accidental announcements and inventory drift. |
| Unexpected upstream or downstream AS | A path contains an AS relationship outside your expected topology. | Can expose leaks, routing-policy changes or an incorrect transit relationship. |
| User-defined AS-path condition | A custom path expression matched an update. | Lets you encode organization-specific routing rules. |
Notifications can be written to files, email, Kafka, Slack, syslog, chat systems, HTTP push endpoints and REST consumers. Select a channel that is independent of the host where possible, so a disk failure does not hide the alert.
#1 Best Overall
- Powerful Turbo Fan:CAGIWIRU Electric Air Duster have reached speed up to 130000RPM,Can efficient remove dust and debris.With LED light and Three Adjustable Speed to meet with different cleaning tasks.
- With Attached USB C Fasting Charging cable.Charing 3 hours,Enjoy up to 240 minutes of use on the lowest setting, For third speed can use for 25mins.with four charging options to meet with your needs.
- Wide Application: attached 5 different nozzles,making it suitable for a variety of scenes, such as car,pet, pc, keyboards, and other electronic devices. It also serves for office and home clean duster.
- Handy Design & Portable:Cordless air duster electric nozzle is Light weight and small size, design and comfortable to hold and space saving, convenient to carry around. You can put it in your room or inside the car without taking up space.
- Economical &Reusable: Built durable materials with a long-lasting battery,our CAGIWIRU air duster it's a sustainable alternative to disposable air cans.
Prerequisites for an Ubuntu installation
- Memory: the official guide specifies 4 GB of RAM.
- Swap: enable swap before starting, especially on a small cloud instance. Swap protects the process from an abrupt out-of-memory kill; it does not replace adequate RAM.
- Outbound connectivity: the process must reach the public BGP repositories it uses. Restrictive egress firewalls, DNS failures and TLS interception can prevent updates.
- Persistent storage: keep the binary,
config.yml,prefixes.yml, logs and (when enabled) the.cache/directory on durable storage. - Privileges: use an unprivileged service account for production. Only the initial directory setup and service installation need administrative privileges.
Check the host before installation:
free -h
swapon --show
df -hIf swapon --show is empty, create and enable swap using your distribution’s documented method before proceeding. Verify that the filesystem has room for rotated logs and the cache.
Install the current Linux binary
The binary method is the shortest Ubuntu path and avoids maintaining a Node.js build environment. The following commands keep all runtime files in one directory:
Free tools Windows power users keep installed
One-click scans. No signup required.
-
Create the application directory and enter it:
mkdir -p ~/bgpalerter cd ~/bgpalerter -
Download the current x64 Linux asset and the example configuration:
wget https://github.com/nttgin/BGPalerter/releases/latest/download/bgpalerter-linux-x64 wget -O config.yml https://raw.githubusercontent.com/nttgin/BGPalerter/main/config.yml.exampleThe first URL tracks the latest published x64 binary. Review release notes before replacing an existing production binary.
-
Make the binary executable:
chmod +x bgpalerter-linux-x64 -
Generate the initial monitored-prefix list from your ASN:
Rank #2
EVEO® Screen Cleaner Spray Kit (Streak-Free) TV Screen Cleaner for Smart TV, Lcd, LEd, Oled | Computer Screen Cleaner Spray and Wipe Microfiber Cloth - TV, Monitor, Laptop, iPad, Car - 6.7oz 1 Pack- Screen Cleaner is Your Screen’s New Bestfriend! - EVEO is proud to present a screen cleaner that’s perfectly suited for your TV. Meet your new screen cleaner, computer screen cleaner, laptop cleaner, iPad cleaner, Macbook,tv cleaner or any other electronic device. Our screen cleaner spray and wipe along with the included plush microfiber cloth, easily removes dust, fingerprints & other smudges on the screen’s surface. Clean effectively for a streak-free screen
- Gentle on your Screens - Our screen cleaner spray and wipes is compatible to be used even for the most sensitive LCD, LED, CRT, and OLED screens in proper use. Be at ease knowing that this product is compatible with all the major brands: LG, SONY, Samsung, Sharp, iPad, iPhone, Android screens, Kindle, PC monitors - we’ve got you covered! Can be used as LCD screen cleaner, tv cleaner, smart tv screen cleaner, and more
- Premium Super Soft Plush Microfiber Cloth - Included in this efficient screen cleaning kit. This screen cleaner spray and wipe has our signature plush microfiber cloth specially designed to comply with screens and monitors and leave them streak-free. Has been shown to effectively absorbs stubborn stains, zero streaks, and no fiber shedding. Always use this together with our screen cleaner for the best results
- Easy-to-Use Screen Cleaner Kit + microfiber cleaning cloth - The EVEO Screen Cleaning Kit will easily be your new favorite tool when it comes to taking care of the things you love most, quick and easy solution for a streak-free screen. Simply screw on the sprayer gun on the screen cleaner bottle. Spray the cleaning liquid onto the microfiber cloth, then wipe the screen until desired cleanliness & shine is achieved.
- Quality Screen Care Kit Worth Purchasing - Enjoy a convenient Screen Cleaner anytime, anywhere you need it. Your satisfaction is our top priority. We stand behind the quality of our products and that’s why, you shouldn’t be worrying at all. We manufacture the Best Screen Cleaner. and can be used for laptop cleaning kit, laptop screen cleaner, tv screen cleaner for smart tv. MacBook screen cleaner, monitor cleaner or screen cleaner spray for electronic devices with microfiber cleaning cloth
./bgpalerter-linux-x64 generate -a YOUR_ASN -o prefixes.yml -i -mReplace
YOUR_ASNwith the numeric AS number you operate. The command discovers prefixes announced by that ASN and writes them toprefixes.yml. The-iand-moptions enable the interactive parts of auto-configuration.Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy. -
Start the monitor:
./bgpalerter-linux-x64On the first normal launch, BGPalerter completes auto-configuration if it still needs to do so. Keep the terminal open while you confirm that updates are arriving and alerts are being written.
Unless you deliberately use the Docker volume option, keep config.yml, prefixes.yml, the binary and the logs/ directory together. Relative paths in the configuration are resolved from the working directory, so moving only the executable commonly produces missing-file errors.
Choose and maintain the prefix inventory
Generated inventory
The ASN-based generate command is useful when the public view of your announcements is the source of truth. BGPalerter can regenerate an automatically generated list on a schedule through generatePrefixListEveryDays. Automatic regeneration applies only when one generated list is in use and that file has not been manually edited. Once you edit the generated file, treat it as a deliberate inventory and manage changes yourself.
Hand-maintained inventory
For a tightly controlled environment, create a YAML prefix file containing only the networks you intend to monitor and point monitoredPrefixesFiles in config.yml to it. This avoids silently adding a newly announced network, but it creates an operational duty: every approved allocation, deallocation and more-specific announcement must be reflected in the file.
Rank #3
- 【Large size】：Measuring 800 x 300 mm/ 31. 5×12 inches, which is wider and taller than others. Large mouse pad can perfectly fit your keyboard and mouse of any size, and there is also ample space for peripherals such as phones, tablets, etc.
- 【LED backlight mouse pad】：Blade Hawks RGB mouse pad provides 7 static modes and 7 dynamic modes will give you the options you are looking for. Power-off memory function remembers the last lighting mode you selected. The super glow fiber Chroma will give you a colorful gaming setup that you want.
- 【Anti-slip rubber base】：Made from Natural rubber, this gaming mousepad will firmly grip your desktop, allowing you to enjoy the ultimate precision in the games you are most passionate about. It also comes with a texture that enhances this ability even further.
- 【Smooth and waterproof surface】: Micro-textured cloth surface, for extremely precise mouse control and a smooth movement. When liquid splashes on the gaming mouse pad, it forms water droplets and slides down. Will not delay your work or gameplay.
- 【Plug and play】: This mouse and keyboard pad is powered by USB, plug and play, no driver required. One button control light modes. Press one time to change the lighting mode, press twice to change the brightness, press and hold about 3 seconds turn ON/OFF.
After changing a monitored file, restart the service or follow the reload behavior documented by the configuration version you installed. Confirm in the logs that the file was parsed and that the expected prefix count is loaded.
Configure alerts, logging and state in config.yml
config.yml is the central file for runtime behavior. Keep a copy under your normal configuration-management process and restrict write access to the service account.
| Setting or area | Operational effect | Practical choice |
|---|---|---|
monitoredPrefixesFiles |
Lists the YAML files containing monitored prefixes. | Use one generated file for hands-off discovery, or explicit files for controlled inventory. |
| Logging options | Define the log directory, rotation pattern, compression, maximum file size and retained-file count. | Set limits that fit the disk and forward important events to a central log system. |
logging.useUTC: true |
Writes log-entry timestamps in UTC. | Use UTC on multi-region operations; event and alert data are always reported in UTC. |
notificationIntervalSeconds |
Controls how soon a repeat notification may be sent. | Choose a value that avoids alert storms without hiding a continuing incident. |
alertOnlyOnce |
Suppresses repeats and caches alert signatures. | Enable it when one actionable notification per event is preferred. |
persistStatus |
Restores previously sent alerts after restart when .cache/ is writable. |
Keep the cache on persistent storage if deduplication must survive reboots. |
generatePrefixListEveryDays |
Regenerates an automatically generated prefix list under the restrictions described above. | Set a reviewable interval and monitor the resulting file for unexpected additions. |
Configure at least one delivery path before relying on the monitor. A local file is useful for troubleshooting, but email, syslog, HTTP push or another external destination gives you a signal when the Ubuntu host itself is unavailable. Test the selected channel with the synthetic update procedure described below.
Expose the uptime API safely
The optional REST server listens on localhost port 8011 by default. Leaving the host set to localhost keeps the API reachable only from the Ubuntu machine. If an external monitor must query it, explicitly change the host, restrict the listening address with firewall rules, and place authentication or a protected reverse proxy in front of it as appropriate for your environment.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsEnable the uptime API in the configuration, then probe:
Rank #4
- 【Softer and More Comfortable】Vaydeer wrist rest has unique diamond pattern, which is the combination of softness and aesthetics. The materials of wrist rest are improved into higher quality memory foam and covered with silky smooth lycra. The computer wrist rest makes you as comfortable and cushiony as like rest your wrists on clouds.
- 【Ergonomic Wrist Saver】The wrist rests for keyboard and mouse comes with a 17.32×3.15×0.83 inch keyboard wrist pad and a 5.94×3.15×0.83 inch mouse wrist support. Based on ergonomic design, the unique concave shape is the perfect fit for your wrist joints. The wrist rest pad fits most computer keyboards and laptops, improve hand and wrist posture, release your wrist and arm stress.
- 【Non-Slip Rubber Bottom】Featuring an anti-skid silicone base on the bottom, this wrist keyboard support stays firmly in place on your desk, preventing the padding from sliding around, ensuring stable and consistent wrist support during extended computer sessions.
- 【Better Experience & Pain Relief】Our keyboard arm rest is beneficial to alleviate the soreness caused by direct contact and friction between your arm and a hard desk surface, reducing the risk of wrist fatigue or carpal tunnel. The soft texture of memory foam can evenly distribute the pressure around your wrists and provide good support with just enough give.
- 【Helpful in Multiple Scenarios】Whether you're working, studying, writing, typing, gaming, this keyboard and mouse rest combo is an essential accessory to add comfort and support to your hands and wrists. It’s also a great gift for men, women, family, friend, coworker, gamer, teacher, etc.
curl -i http://127.0.0.1:8011/statusUse the response as a health signal rather than as proof that every alert destination works. A negative status can indicate misconfiguration or failure to connect to the BGP data repository. Do not expose port 8011 to the Internet merely because the process is running.
Run BGPalerter as a systemd service
An interactive shell is suitable for initial validation, not for production. The documented Linux service uses a dedicated bgpalerter user and /home/bgpalerter as the working directory.
-
Create the account and place the binary, configuration, prefix list and log directory under its home directory. Ensure the account owns the files and that the binary is executable.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy. -
Create
/etc/systemd/system/bgpalerter.servicewith:[Unit] Description=BGPalerter After=network.target [Service] Type=simple Restart=on-failure RestartSec=30s User=bgpalerter WorkingDirectory=/home/bgpalerter ExecStart=/home/bgpalerter/bgpalerter-linux-x64 [Install] WantedBy=multi-user.target -
Load, enable and start the unit:
sudo systemctl daemon-reload sudo systemctl enable bgpalerter sudo systemctl start bgpalerter sudo systemctl status bgpalerter -
Inspect runtime output and recent failures:
sudo journalctl -u bgpalerter -f sudo journalctl -u bgpalerter --since "1 hour ago"
Restart=on-failure with a 30-second delay handles crashes but does not repair a bad configuration, a full disk or blocked network access. Check ownership after every upgrade and verify that the service’s working directory still contains the files named by the configuration.
Best Value
- 【No Drill Mounted】Cable management tray can be assembled in as little as 3 minutes or less-simply. Side clips easily clampe the edge of desk, pass through the holes on the sides, and secure excess cables with baskets. Desk cable management supports inward or outward installation to meet your needs in different scenarios, and provides you with great convenience when collecting and organizing wires.
- 【Rubber Pad Protects Desk】Wire organizer under desk built-in soft rubber pads on the clamp protect your desk from scratches, so you will not damage your furniture or office.
- 【Sturdy and Beautiful】Cord management under desk is made of high-quality carbon steel and holds about 15 lbs. The wire basket has 2 holes on each side of the tray to enable your cables to pass freely. Cable baskets are suitable for desk thickness use from 0.4" to 2.4".
- 【Space Saving & Keep Organized】Desk cable management tray holds all your power cords, outlet strips, USB hubs and computer transformers hidden from your feet, and the data cables will not enter the vacuum cleaner to keep your desk clean and tidy. Desk wire organizer is also suitable for use in the kitchen and outdoors.
- 【Reduce Safety Risks】Cable tray under desk keeps all plugs away from your kids, no more worry about tripping. Using 2 holes wire tray saves extra space, helps you easily cabling and wire protection. The mesh design is not easy to accumulate dust, but avoids safety accidents caused by messy wires.
Validate detection before waiting for a real incident
BGPalerter provides a test option that generates fake BGP updates. Run it with -t and exercise reports listening on the hijack channel. This validates report wiring and notification delivery without announcing anything on the Internet.
./bgpalerter-linux-x64 -tWhen running under systemd, perform the test in a controlled maintenance window and check the service logs plus every configured destination. Confirm that a suppressed repeat behaves as intended when alertOnlyOnce is enabled.
Recommended Free Tools
For ongoing assurance, combine three checks:
- Process check: systemd status, an external process monitor or a heartbeat alert.
- Application check: the REST
/statusendpoint, if enabled. - Data freshness check: recent log entries and successful repository connectivity.
A container restart alone is not evidence that monitoring has recovered. The process can restart repeatedly while remaining unable to fetch data or deliver reports.
Deployment choices for Ubuntu
| Method | Strengths | Costs and cautions |
|---|---|---|
| Linux binary | Few dependencies, simple directory layout and straightforward systemd integration. | You must replace the executable during upgrades and track architecture compatibility. |
| Docker | Encapsulates runtime dependencies and is convenient for container orchestration. | Persist configuration, prefixes, logs and cache. Mount the persistent volume at /opt/bgpalerter/volume; generate configuration interactively first, then run detached with -d. |
| Source installation | Fits environments that build and audit software internally. | Requires Node.js and npm, a repeatable build process and responsibility for dependency updates. |
| Debian package build | Can integrate with package-management workflows. | You still own package creation, signing, repository distribution and upgrade testing. |
For Docker uptime checks, expose port 8011 only within the monitoring network and query http://127.0.0.1:8011/status from the appropriate container or host context. In a container, “localhost” refers to that container, so an external checker may need the service host address or a sidecar arrangement.
Plan upgrades around release changes
The releases page currently displays v2.0.1 as the latest release. Download the current asset for a new installation, but review the release notes before upgrading an existing one.
The v2.0.0 release introduced breaking operational changes: Node.js was upgraded to 22; online RPKI validation and proxy support were removed; configuration version 3 became mandatory; the web server moved from Restify to Express; packaging moved to yao-pkg/pkg; and security patches were applied. A source build or an older configuration may therefore require changes even when the monitored ASN and prefixes are unchanged.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallA safe binary upgrade sequence is:
- Back up
config.yml, prefix files and the.cache/directory. - Read the release notes and verify that the target architecture and configuration version are supported.
- Download the new executable beside the old one and compare its
-voutput with the version currently running. - Stop the service, replace the executable, restore ownership and executable permissions, then start the service.
- Check
systemctl status, logs,/statusand a synthetic-talert before declaring the upgrade complete.
The project documentation describes a weekly script that downloads the latest binary, compares -v output, replaces the executable when versions differ and restarts the process. Treat that as an operational pattern to review and test, not as an unattended guarantee: pin versions when change control requires it and ensure a failed download cannot overwrite a working binary.
Quick Recap
Troubleshoot the common failure modes
| Symptom | Likely cause | Checks and correction |
|---|---|---|
| Process exits immediately | Missing executable permission, incompatible binary or invalid configuration. | Run the binary manually, inspect the exact error, check chmod +x, architecture and configuration-version requirements. |
| Service loops every 30 seconds | Restart=on-failure is working, but startup still fails. |
Read journalctl -u bgpalerter; correct paths, ownership, YAML syntax or network access before restarting. |
| No prefixes are monitored | The generated file was not created, is outside the working directory or is not referenced. | Run the ASN generate command again, verify prefixes.yml exists and inspect monitoredPrefixesFiles. |
| Alerts repeat too often | Notification interval is too short or deduplication is disabled. | Adjust notificationIntervalSeconds or enable alertOnlyOnce; verify that .cache/ is writable when persistence is required. |
| Alerts disappear after reboot | Status cache is not persistent or persistStatus is disabled. |
Enable persistence and retain a writable .cache/ directory on durable storage. |
| Logs consume the disk | Rotation, compression or retention limits are too permissive. | Set maximum file size and retained-file count, then confirm old files are compressed or removed as expected. |
/status is unreachable |
REST server is disabled, bound to localhost from the wrong network namespace or blocked by a firewall. | Check the API configuration and listener locally first; expose it only with deliberate network controls. |
| Status is negative despite a running process | Repository connectivity or configuration failure. | Inspect DNS, egress, TLS errors and logs; a running PID alone is not a healthy monitor. |
Operational checklist
- Reserve 4 GB RAM and enable swap.
- Keep the binary,
config.yml, prefix files, logs and cache on persistent storage. - Decide whether generated or hand-maintained prefixes are the authoritative inventory.
- Configure at least one external alert destination and test it with
-t. - Run the production process under the dedicated systemd account.
- Use UTC consistently when correlating alerts with router and provider logs.
- Monitor both process liveness and application/data health through logs or
/status. - Review release notes, especially configuration-version and runtime changes, before upgrades.
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.
