BashEdgeFOR UBUNTU SERVERS
Ubuntu server security beyond a basic firewall.
Protect open ports, SSH logins, Web applications and server capacity with one coordinated security layer, without discarding UFW, Fail2ban or the controls already in place.
One-command install No reboot Monitor before blocking
Securing Ubuntu in layers
A hardened operating system is the foundation, not the finish line.
Updates, least privilege and careful SSH configuration reduce the number of ways an attacker can reach the server. A firewall then limits which connections are allowed. But a permitted connection can still carry an exploit, and an ordinary-looking request can still be part of a Layer 7 DDoS attack.
BashEdge protects the activity that begins after a connection is allowed. It evaluates the request, its source and its behaviour before the application pays the cost.
How BashEdge protects Ubuntu
Stop hostile requests before they consume Web server capacity.
Traffic is inspected before nginx, Apache or the application runtime performs expensive work.
INTERNET TRAFFICVisitors, bots and attacks
→
BASHEDGEInspect · verify · contain Hostile traffic stops here
→
nginxProxy and static traffic
Apache + applicationDynamic Web requests
→
UBUNTU WEB SERVICES
Every hosted application
Ubuntu server hardening
Build security from the operating system outward.
Effective Ubuntu server security is a sequence of controls. Each layer removes a different kind of risk: reduce what is exposed, secure administration, limit network access, inspect permitted requests and respond when behaviour turns hostile.
Existing UFW rules remain in placeWeb attacks stop before application processingSSH and service logins use independent policies
Reduce the attack surface
Remove unused services and keep the operating system and runtime current.
Strengthen administration
Use SSH keys, least privilege and deliberate sudo access.
Control network exposure
Open only the ports and sources each service requires.
Inspect permitted requests
Stop exploits and application abuse after a connection is allowed.
Respond to hostile behaviour
Contain repeated logins, coordinated requests and request floods.
Ubuntu firewall and security tools
Keep proven controls. Give each one a clear job.
UFW, Fail2ban and ModSecurity solve useful problems. BashEdge works alongside them and connects Web, network and authentication activity into one protection and evidence model.
No firewall resetExisting rules remain intact during installation and operation.
LayerRoleUseful for
UFW / netfilterNetwork accessPorts, protocols and source policy
Fail2banLog-based responseRepeated authentication failures
ModSecurityRequest rulesWeb attack pattern matching
BashEdgeCoordinated server protectionWAF, DDoS behaviour, firewall, IPS and evidence
NGINX / APACHE REQUESTBlocked before PHP
POST
/wp-admin/admin-ajax.php403DETECTIONRemote code execution
action=run&cmd=../../bin/shApplication work avoidedThe hostile payload did not reach PHP or the CMS.
Web Application Firewall for Ubuntu
Protect nginx, Apache and the applications behind them.
A port can be intentionally open while the request crossing it is hostile. BashEdge inspects paths, methods, parameters, headers and uploads against more than 50 maintained attack rules.
- Injection and executionSQL injection, command injection, code execution and framework exploits.
- Files and credentialsTraversal, environment files, backups, database dumps and cloud credentials.
- Application abuseWebshell uploads, XSS, SSRF, GraphQL probing and CMS-specific attacks.
Ubuntu DDoS protection
Protect CPU and application workers, not only bandwidth.
Application-layer attacks send HTTP requests that are individually valid but collectively expensive. BashEdge identifies high-rate clients, coordinated sources, distributed paths and identity rotation before they overwhelm nginx, Apache, PHP or the application.
Protect one site or the server. Scope visitor verification to the service under attack.Preserve trusted traffic. Allowlisted systems and verified crawlers continue normally.Choose the incident window. Run Lockdown Mode for a fixed time or until disabled.
HTTP REQUEST RATEAttack contained
18k12k6k0Protection active
18,420/minbefore protection612/minverified traffic
Intrusion prevention for Ubuntu services
Apply the right threshold to each login surface.
SSH does not behave like mail, FTP or a database login. BashEdge lets each service use its own attempt threshold, observation window and block duration.
Remote administration
Stop repeated authentication attempts without treating normal administrator activity as an attack.
Independent policyFile transfer
Contain credential guessing across FTP services while trusted deployment systems remain allowlisted.
Independent policySMTP and IMAP
Protect mail authentication separately from Web and shell access patterns.
Independent policyDatabase services
Restrict exposed database authentication and respond to repeated hostile sources.
Independent policyUseful threat evidence
Know what happened before reaching for the logs.
BashEdge records the source, network, country, rule, reason, service and targeted host. That turns a CPU spike or failed login alert into an incident the server owner can explain.
SourceActionReason
203.0.113.47BlockedCredential-file probing against app.example198.51.100.22VerifiedDistributed request rate across 18 paths192.0.2.18BlockedRepeated SSH authentication failuresSafe deployment
Observe the server before changing its traffic.
Install BashEdge with one command and begin in monitor mode. Review what each rule would have done, allowlist trusted infrastructure and activate only the controls you are ready to enforce.
Ubuntu server security questions
What to know before protecting an Ubuntu server.
What is the best way to secure an Ubuntu server?
Begin with a minimal operating system, current security updates, SSH keys, least-privilege accounts and a default-deny firewall. A public Web server also needs request inspection, application-layer rate controls, service-specific intrusion prevention and useful threat evidence. BashEdge is designed to add those active protection layers without replacing sound operating-system practices.
Does Ubuntu include a firewall?
Ubuntu commonly uses UFW as a simpler interface for managing netfilter firewall rules. UFW is effective for deciding which ports and sources may connect, but it does not inspect the meaning or behaviour of an HTTP request.
Does BashEdge replace UFW or iptables?
No. BashEdge detects and preserves the firewall configuration already on the server. It adds centrally managed network rules and coordinates them with Web request and login protection.
Can BashEdge protect nginx and Apache on Ubuntu?
Yes. BashEdge protects HTTP traffic before it reaches hosted applications and can be used with Ubuntu Web servers running nginx, Apache or a proxy-to-application arrangement.
How does Ubuntu DDoS protection work?
BashEdge watches request rates, repeated paths, distributed sources, coordinated behaviour and identity rotation. During an active incident, visitor verification can hold automated traffic back while trusted visitors continue.
Can BashEdge run alongside Fail2ban?
Yes. Existing tools can remain in place. BashEdge adds independent service thresholds, network-layer blocking and a unified view across Web, SSH, mail, FTP and database authentication activity.
Will the Web Application Firewall break my website?
Rules start in monitor mode and change no traffic. Review their effect on requests from your server, allowlist trusted systems and then choose watch, verify or block for each rule.
How is BashEdge installed on Ubuntu?
Installation uses one command, requires no reboot and begins in monitor mode. The service is resource-capped and protection updates arrive without restarting the Web server.
Protect the complete Ubuntu Web server.
Start in monitor mode, learn from real server traffic and activate each protection layer with evidence.
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