Network Security Channel
Practice Security+ without friction.pdf
🎯 Built a Free CompTIA Security+ (SY0-701) Practice Exam Simulator — No Friction, No Sign-up
As part of giving back to the cybersecurity community, I've put together a free, browser-based practice exam simulator for anyone preparing for the CompTIA Security+ SY0-701 certification. Whether you're starting your InfoSec journey or sharpening your fundamentals, this tool is built to mirror the real exam experience.
🔹 What's Inside:
✅ 300 original practice questions covering all 5 official SY0-701 domains
✅ Practice Mode — instant feedback and detailed explanations after every answer, so you learn as you go
✅ Exam Mode — fully timed simulation with no feedback until submission, matching real test conditions
✅ Flexible session sizing — choose 10, 20, 50, or 90 questions per run
✅ Domain targeting — practice all five domains or focus on weak areas
✅ Performance analytics — domain-by-domain score breakdown and incorrect-answer review
✅ Browser session persistence — refresh-safe progress, no account required
🔹 Domain Coverage (Weighted to Match the Real Exam):
📘 1.0 General Security Concepts — 12%
📘 2.0 Threats, Vulnerabilities, and Mitigations — 22%
📘 3.0 Security Architecture — 18%
📘 4.0 Security Operations — 28%
📘 5.0 Security Program Management and Oversight — 20%
🔹 Why This Matters:
Most quality exam prep tools sit behind paywalls or require lengthy sign-ups. I wanted something that respects the learner's time — open the page, pick a domain, start practicing. That's it.
🔹 Key Lesson From Building It:
The hardest part of certification prep isn't memorizing acronyms (SLA vs. ISA, TPM vs. HSM, CASB vs. SWG…) — it's training your reasoning under timed pressure. A timer + explanations + domain breakdown is what bridges that gap.
💼 Currently exploring new opportunities in Network & Cybersecurity Engineering — open to on-site, hybrid, or remote roles. I deliver hands-on services in network design, firewall deployment (Fortinet, Cisco), WAF implementation, ICS/OT security (IEC 62443, NIST), and infrastructure hardening.
#CyberSecurity #SecurityPlus #CompTIA #SY0701 #InfoSec #CertificationPrep #NetworkSecurity #OpenToWork #NetworkEngineer #CyberCareer #ContinuousLearning
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
As part of giving back to the cybersecurity community, I've put together a free, browser-based practice exam simulator for anyone preparing for the CompTIA Security+ SY0-701 certification. Whether you're starting your InfoSec journey or sharpening your fundamentals, this tool is built to mirror the real exam experience.
🔹 What's Inside:
✅ 300 original practice questions covering all 5 official SY0-701 domains
✅ Practice Mode — instant feedback and detailed explanations after every answer, so you learn as you go
✅ Exam Mode — fully timed simulation with no feedback until submission, matching real test conditions
✅ Flexible session sizing — choose 10, 20, 50, or 90 questions per run
✅ Domain targeting — practice all five domains or focus on weak areas
✅ Performance analytics — domain-by-domain score breakdown and incorrect-answer review
✅ Browser session persistence — refresh-safe progress, no account required
🔹 Domain Coverage (Weighted to Match the Real Exam):
📘 1.0 General Security Concepts — 12%
📘 2.0 Threats, Vulnerabilities, and Mitigations — 22%
📘 3.0 Security Architecture — 18%
📘 4.0 Security Operations — 28%
📘 5.0 Security Program Management and Oversight — 20%
🔹 Why This Matters:
Most quality exam prep tools sit behind paywalls or require lengthy sign-ups. I wanted something that respects the learner's time — open the page, pick a domain, start practicing. That's it.
🔹 Key Lesson From Building It:
The hardest part of certification prep isn't memorizing acronyms (SLA vs. ISA, TPM vs. HSM, CASB vs. SWG…) — it's training your reasoning under timed pressure. A timer + explanations + domain breakdown is what bridges that gap.
💼 Currently exploring new opportunities in Network & Cybersecurity Engineering — open to on-site, hybrid, or remote roles. I deliver hands-on services in network design, firewall deployment (Fortinet, Cisco), WAF implementation, ICS/OT security (IEC 62443, NIST), and infrastructure hardening.
#CyberSecurity #SecurityPlus #CompTIA #SY0701 #InfoSec #CertificationPrep #NetworkSecurity #OpenToWork #NetworkEngineer #CyberCareer #ContinuousLearning
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
Network Security Channel
1777790686123.pdf
🔍 Active Directory Enumeration Walkthrough: Mapping a Domain with pywerview
Just published a hands-on lab write-up demonstrating how an authenticated attacker with low-privileged credentials can enumerate a full Active Directory environment using pywerview — the Python port of the legendary PowerView module — and uncover real privilege escalation paths from a single foothold.
🔹 Lab Scenario:
Starting credentials: raj / Password@1 against the ignite.local domain. From this minimal access, mapping out users, groups, computers, delegation settings, ACLs, GPOs, and trust relationships — entirely over LDAP.
🔹 Key Findings Uncovered Through Enumeration:
✅ Domain Admin discovery — identified the aaru account via --admin-count filter (adminCount=1, member of Domain Admins)
✅ Kerberoastable SPN — the kavish account exposed via --spn, configured with TRUSTED_TO_AUTH_FOR_DELEGATION against a SQL server (constrained delegation w/ protocol transition)
✅ Unconstrained Delegation hosts — flagged via --unconstrained (a classic path to DC compromise)
✅ Backup Operators abuse path — user shivam enumerated as a member, opening NTDS.dit dump potential
✅ Trust enumeration — bidirectional forest trust to pentest.local discovered via get-netdomaintrust
✅ Domain policy extraction — password length, complexity, lockout thresholds, and Kerberos ticket lifetimes all readable from SYSVOL
🔹 pywerview Modules Demonstrated:
get-netdomain, get-netuser, get-netgroup, get-netgroupmember, get-netcomputer, get-netshare, get-netsession, get-netloggedon, get-netou, get-netsite, get-netsubnet, get-netgpo, get-domainpolicy, invoke-userhunter, invoke-processhunter, invoke-checklocaladminaccess, get-objectacl, get-netdomaintrust
🔹 Why This Matters for Defenders:
Every red-team finding above is a blue-team checklist item. Misconfigured delegation, stale adminCount=1 flags, over-privileged Backup Operators, and SPN sprawl on user accounts are the silent killers of AD environments. You can't harden what you can't see.
🔹 Key Lesson From the Lab:
A single low-privileged user is enough to map your entire domain, identify Tier 0 assets, and build a full attack graph — without ever touching a tool that triggers EDR. LDAP queries are noisy only if you're watching for them.
💼 Currently exploring new opportunities in Network & Cybersecurity Engineering — open to on-site, hybrid, or remote roles. I deliver hands-on services in network design, firewall deployment (Fortinet, Cisco), Active Directory hardening, ICS/OT security (IEC 62443, NIST), penetration testing, and infrastructure hardening.
#CyberSecurity #ActiveDirectory #RedTeam #PenetrationTesting #pywerview #PowerView #ADSecurity #LDAP #Kerberoasting #PrivilegeEscalation #InfoSec #BlueTeam #OpenToWork #NetworkSecurity #OffensiveSecurity
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
Just published a hands-on lab write-up demonstrating how an authenticated attacker with low-privileged credentials can enumerate a full Active Directory environment using pywerview — the Python port of the legendary PowerView module — and uncover real privilege escalation paths from a single foothold.
🔹 Lab Scenario:
Starting credentials: raj / Password@1 against the ignite.local domain. From this minimal access, mapping out users, groups, computers, delegation settings, ACLs, GPOs, and trust relationships — entirely over LDAP.
🔹 Key Findings Uncovered Through Enumeration:
✅ Domain Admin discovery — identified the aaru account via --admin-count filter (adminCount=1, member of Domain Admins)
✅ Kerberoastable SPN — the kavish account exposed via --spn, configured with TRUSTED_TO_AUTH_FOR_DELEGATION against a SQL server (constrained delegation w/ protocol transition)
✅ Unconstrained Delegation hosts — flagged via --unconstrained (a classic path to DC compromise)
✅ Backup Operators abuse path — user shivam enumerated as a member, opening NTDS.dit dump potential
✅ Trust enumeration — bidirectional forest trust to pentest.local discovered via get-netdomaintrust
✅ Domain policy extraction — password length, complexity, lockout thresholds, and Kerberos ticket lifetimes all readable from SYSVOL
🔹 pywerview Modules Demonstrated:
get-netdomain, get-netuser, get-netgroup, get-netgroupmember, get-netcomputer, get-netshare, get-netsession, get-netloggedon, get-netou, get-netsite, get-netsubnet, get-netgpo, get-domainpolicy, invoke-userhunter, invoke-processhunter, invoke-checklocaladminaccess, get-objectacl, get-netdomaintrust
🔹 Why This Matters for Defenders:
Every red-team finding above is a blue-team checklist item. Misconfigured delegation, stale adminCount=1 flags, over-privileged Backup Operators, and SPN sprawl on user accounts are the silent killers of AD environments. You can't harden what you can't see.
🔹 Key Lesson From the Lab:
A single low-privileged user is enough to map your entire domain, identify Tier 0 assets, and build a full attack graph — without ever touching a tool that triggers EDR. LDAP queries are noisy only if you're watching for them.
💼 Currently exploring new opportunities in Network & Cybersecurity Engineering — open to on-site, hybrid, or remote roles. I deliver hands-on services in network design, firewall deployment (Fortinet, Cisco), Active Directory hardening, ICS/OT security (IEC 62443, NIST), penetration testing, and infrastructure hardening.
#CyberSecurity #ActiveDirectory #RedTeam #PenetrationTesting #pywerview #PowerView #ADSecurity #LDAP #Kerberoasting #PrivilegeEscalation #InfoSec #BlueTeam #OpenToWork #NetworkSecurity #OffensiveSecurity
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
🔐 Fortinet Firewall Topology – Secure. Segment. Protect.
A well-designed network is the backbone of strong cybersecurity. This topology using Fortinet demonstrates how to build a secure and scalable infrastructure with proper segmentation and control.
✅ Key Highlights:
• Segmented zones: LAN (Trust), DMZ, and Management Network
• Secure remote connectivity via IPsec VPN
• Dual WAN setup for high availability and backup internet
• Controlled access policies between network zones
• Advanced security features like IPS, Web Filtering, SSL Inspection, and Application Control
🚀 Benefits:
• Enhanced security through network segmentation
• Reliable remote access for branch offices
• Centralized management and monitoring
• Improved resilience with failover internet
Strong network architecture isn’t just about connectivity—it’s about protection, performance, and control.
#CyberSecurity #Networking #Fortinet #Firewall #ITInfrastructure #NetworkSecurity #VPN #ITSupport
🔹 Share 🔹
📱 Channel : @Engineer_Computer
A well-designed network is the backbone of strong cybersecurity. This topology using Fortinet demonstrates how to build a secure and scalable infrastructure with proper segmentation and control.
✅ Key Highlights:
• Segmented zones: LAN (Trust), DMZ, and Management Network
• Secure remote connectivity via IPsec VPN
• Dual WAN setup for high availability and backup internet
• Controlled access policies between network zones
• Advanced security features like IPS, Web Filtering, SSL Inspection, and Application Control
🚀 Benefits:
• Enhanced security through network segmentation
• Reliable remote access for branch offices
• Centralized management and monitoring
• Improved resilience with failover internet
Strong network architecture isn’t just about connectivity—it’s about protection, performance, and control.
#CyberSecurity #Networking #Fortinet #Firewall #ITInfrastructure #NetworkSecurity #VPN #ITSupport
🔹 Share 🔹
📱 Channel : @Engineer_Computer
🛡 Wazuh Mastery Pack · 01 of 15 — Installation & Setup
The single most repeated question from juniors picking up Wazuh:
"Where do I even start?"
This first cheat sheet gets a Wazuh stack from zero to producing alerts in under 30 minutes — Manager, Indexer, Dashboard, Agents, all the ports you must open, and the verification one-liners I run before walking away from any new install.
A few non-obvious things people miss on day one:
- The all-in-one assistant script (wazuh-install.sh -a) is a lab/PoC tool — don't ship it to prod
- /var/ossec/wazuh-install-files.tar contains your initial creds. Move it to a vault. Lose it = full reinstall.
- Prefer TCP/1514 over UDP for event ingest — UDP silently drops events under load
- Always run /var/ossec/bin/wazuh-control configtest before restarting the manager
If you're starting your Wazuh journey this week, this one is for you.
#Wazuh #SIEM #SOC #CyberSecurity #BlueTeam #InfoSec #OpenToWork
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
The single most repeated question from juniors picking up Wazuh:
"Where do I even start?"
This first cheat sheet gets a Wazuh stack from zero to producing alerts in under 30 minutes — Manager, Indexer, Dashboard, Agents, all the ports you must open, and the verification one-liners I run before walking away from any new install.
A few non-obvious things people miss on day one:
- The all-in-one assistant script (wazuh-install.sh -a) is a lab/PoC tool — don't ship it to prod
- /var/ossec/wazuh-install-files.tar contains your initial creds. Move it to a vault. Lose it = full reinstall.
- Prefer TCP/1514 over UDP for event ingest — UDP silently drops events under load
- Always run /var/ossec/bin/wazuh-control configtest before restarting the manager
If you're starting your Wazuh journey this week, this one is for you.
#Wazuh #SIEM #SOC #CyberSecurity #BlueTeam #InfoSec #OpenToWork
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
❤1
🛡 Wazuh Mastery Pack · 02 of 15 — CLI Commands
The Wazuh GUI is great. The CLI is where you actually solve problems at 2am.
This cheat sheet is the muscle memory I wish I'd had on day one — service control, agent management, live log testing with wazuh-logtest, cluster operations, and the file paths you'll touch a thousand times.
Three commands every Wazuh operator should burn into memory:
🔹 /var/ossec/bin/wazuh-control configtest
→ validates ossec.conf BEFORE you restart in production. Has saved me from at least three outages.
🔹 /var/ossec/bin/wazuh-logtest
→ paste a raw log line, see exactly which decoder and which rule fires (or doesn't). Single best tool for tuning custom rules.
🔹 /var/ossec/bin/agent_control -l
→ shows every agent and its connection status. Faster than the dashboard when you just need a quick health check.
If you operate Wazuh and aren't using these, you're doing it the hard way.
#Wazuh #SIEM #SOC #BlueTeam #DevSecOps #CLI #InfoSec
📱 Channel : @Engineer_Computer
The Wazuh GUI is great. The CLI is where you actually solve problems at 2am.
This cheat sheet is the muscle memory I wish I'd had on day one — service control, agent management, live log testing with wazuh-logtest, cluster operations, and the file paths you'll touch a thousand times.
Three commands every Wazuh operator should burn into memory:
🔹 /var/ossec/bin/wazuh-control configtest
→ validates ossec.conf BEFORE you restart in production. Has saved me from at least three outages.
🔹 /var/ossec/bin/wazuh-logtest
→ paste a raw log line, see exactly which decoder and which rule fires (or doesn't). Single best tool for tuning custom rules.
🔹 /var/ossec/bin/agent_control -l
→ shows every agent and its connection status. Faster than the dashboard when you just need a quick health check.
If you operate Wazuh and aren't using these, you're doing it the hard way.
#Wazuh #SIEM #SOC #BlueTeam #DevSecOps #CLI #InfoSec
📱 Channel : @Engineer_Computer
❤2
🛡 Wazuh Mastery Pack · 03 of 15 — Configuration Files
Wazuh's power lives in three XML files:
🔹 /var/ossec/etc/ossec.conf — manager's brain
🔹 /var/ossec/etc/shared/default/agent.conf — central agent policy
🔹 /var/ossec/etc/rules/local_rules.xml — your custom detections
This cheat sheet ships ready-to-paste blocks for all three — the global section, the <remote> block agents connect through, central agent policy that pushes to every endpoint, and a working custom rule template.
The single biggest mistake I see in custom rules:
👉 Using rule IDs below 100000.
The 1–9999 range is owned by Wazuh's built-in ruleset. Collide with it and your rule will silently lose to the built-in. Always use 100000 and above for your custom detections.
If you're tuning Wazuh this week, save this one.
#Wazuh #SIEM #SOC #DetectionEngineering #InfoSec #BlueTeam
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
Wazuh's power lives in three XML files:
🔹 /var/ossec/etc/ossec.conf — manager's brain
🔹 /var/ossec/etc/shared/default/agent.conf — central agent policy
🔹 /var/ossec/etc/rules/local_rules.xml — your custom detections
This cheat sheet ships ready-to-paste blocks for all three — the global section, the <remote> block agents connect through, central agent policy that pushes to every endpoint, and a working custom rule template.
The single biggest mistake I see in custom rules:
👉 Using rule IDs below 100000.
The 1–9999 range is owned by Wazuh's built-in ruleset. Collide with it and your rule will silently lose to the built-in. Always use 100000 and above for your custom detections.
If you're tuning Wazuh this week, save this one.
#Wazuh #SIEM #SOC #DetectionEngineering #InfoSec #BlueTeam
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
❤2
🛡 Wazuh Mastery Pack · 04 of 15 — Rules & Decoders
Detection engineering with Wazuh comes down to two artifacts:
📜 Decoders — pull structure out of unstructured logs
🚨 Rules — turn structured fields into alerts
This cheat sheet is the anatomy of both: alert levels 0–16 and what they actually mean, the rule ID ranges that keep you from colliding with built-ins, the chained-rule pattern (if_matched_sid + frequency + timeframe) that detects brute-force behavior, and a working decoder for a custom application log.
A practice that separates senior detection engineers from juniors:
👉 Every rule should map to a MITRE ATT&CK technique.
<mitre><id>T1110</id></mitre>
It costs nothing, takes seconds, and makes your alerts speak the same language as every threat report on the planet.
#Wazuh #DetectionEngineering #SIEM #MITREATTACK #SOC #ThreatHunting #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
Detection engineering with Wazuh comes down to two artifacts:
📜 Decoders — pull structure out of unstructured logs
🚨 Rules — turn structured fields into alerts
This cheat sheet is the anatomy of both: alert levels 0–16 and what they actually mean, the rule ID ranges that keep you from colliding with built-ins, the chained-rule pattern (if_matched_sid + frequency + timeframe) that detects brute-force behavior, and a working decoder for a custom application log.
A practice that separates senior detection engineers from juniors:
👉 Every rule should map to a MITRE ATT&CK technique.
<mitre><id>T1110</id></mitre>
It costs nothing, takes seconds, and makes your alerts speak the same language as every threat report on the planet.
#Wazuh #DetectionEngineering #SIEM #MITREATTACK #SOC #ThreatHunting #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
❤1
🛡 Wazuh Mastery Pack · 05 of 15 — Wazuh API Anything you can do in the Wazuh dashboard, you can automate via the REST API on port 55000. This cheat sheet is the muscle: token auth, the endpoints I hit weekly, filtering and pagination, and curl one-liners you can drop into a Bash script today. Three workflows the API unlocks:
🔹 Mass-restart agents after a rule change → PUT /agents/restart (no more clicking through 200 hosts)
🔹 Auto-decommission stale agents → GET /agents?lastKeepAlive&status=disconnected → DELETE the list
🔹 Pipe rule and SCA data into your own dashboards → no need to touch OpenSearch directly Tokens expire in 15 minutes by default. Re-auth in your script, don't hardcode them.
#Wazuh #API #SIEM #Automation #SOC #DevSecOps #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
🔹 Mass-restart agents after a rule change → PUT /agents/restart (no more clicking through 200 hosts)
🔹 Auto-decommission stale agents → GET /agents?lastKeepAlive&status=disconnected → DELETE the list
🔹 Pipe rule and SCA data into your own dashboards → no need to touch OpenSearch directly Tokens expire in 15 minutes by default. Re-auth in your script, don't hardcode them.
#Wazuh #API #SIEM #Automation #SOC #DevSecOps #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
❤1
🛡 Wazuh Mastery Pack · 06 of 15 — Wazuh Query Language (WQL)
Triage speed = how fast you can write the right query.
This cheat sheet is the field-level reference for filtering alert data inside the Wazuh Dashboard — exact-match, ranges, boolean logic (AND / OR / NOT), wildcards, and the fields you'll reach for every shift.
The three queries every SOC analyst should know by heart:
🔹 rule.level >= 12
→ only critical alerts. Cuts the noise instantly during triage.
🔹 rule.groups: "authentication_failed" AND NOT data.srcuser: "backup"
→ real failed-auth events, minus your noisy service accounts.
🔹 rule.mitre.id: "T1110"
→ every brute-force alert across your fleet, in one click.
Save these as Saved Searches in the Dashboard. Triage time drops by half.
#Wazuh #SOC #ThreatHunting #SIEM #BlueTeam #SecurityAnalyst #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
Triage speed = how fast you can write the right query.
This cheat sheet is the field-level reference for filtering alert data inside the Wazuh Dashboard — exact-match, ranges, boolean logic (AND / OR / NOT), wildcards, and the fields you'll reach for every shift.
The three queries every SOC analyst should know by heart:
🔹 rule.level >= 12
→ only critical alerts. Cuts the noise instantly during triage.
🔹 rule.groups: "authentication_failed" AND NOT data.srcuser: "backup"
→ real failed-auth events, minus your noisy service accounts.
🔹 rule.mitre.id: "T1110"
→ every brute-force alert across your fleet, in one click.
Save these as Saved Searches in the Dashboard. Triage time drops by half.
#Wazuh #SOC #ThreatHunting #SIEM #BlueTeam #SecurityAnalyst #InfoSec
🔹 Share & Support Us 🔹
📱 Channel : @Engineer_Computer
❤1