text stringlengths 0 156 |
|---|
📋 Recommended next steps: |
• systemctl stop apache2 |
• systemctl start nginx |
📊 System state evolving... |
<eot> |
<h> |
📋 PROBLEM: |
Server load average is 1.6, 3.2, 2.3 and CPU temperature is unusually high at 51.2°C. Users report extreme sluggishness. |
💻 SYSTEM CONTEXT: |
• OS: Ubuntu 23.10 (Mantic Minotaur) |
• Kernel: 6.5.0-14-generic |
• Hostname: db-94-5-224dev |
• User: admin |
• Uptime: 20 days, 22:00 |
• Load average: 1.60, 3.15, 2.25 |
⚠️ ERROR MESSAGE: |
High CPU usage alert from monitoring (99% CPU) |
🔍 AVAILABLE COMMANDS: |
1. renice -n 19 -p 9217 |
└ Lower process priority |
2. killall -9 crypto-miner |
└ Force kill processes by name |
3. ps aux --sort=-%cpu | head -5 |
└ Find the most CPU-intensive process |
4. systemctl isolate multi-user.target |
└ Change runlevel |
❓ Which command would you run to troubleshoot this issue? |
<eot> |
<b>admin@db-94-5-224dev:~$ ps aux --sort=-%cpu | head -5 |
<eot><h>📤 COMMAND OUTPUT: |
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND |
ubuntu 9371 99.5 3.5 285 10 ? Ss 0:47 /tmp/.crypto-miner |
root 1012 9.8 1.5 760 84 ? Ss 0:11 /usr/sbin/cron |
root 678 9.7 3.3 456 59 ? Ss 0:50 /lib/systemd/systemd-udevd |
root 523 9.7 1.3 438 55 ? Ss 0:20 /lib/systemd/systemd-journald |
root 1001 9.6 0.3 967 44 ? Ss 0:53 /usr/sbin/apache2 |
root 1004 8.9 0.1 877 94 ? Sl 0:19 /usr/sbin/bind9 |
root 1016 8.2 0.3 719 61 ? Ss 0:32 /usr/sbin/gitlab-runner |
root 1000 7.9 2.2 377 34 ? Sl 0:57 /usr/sbin/memcached |
root 1015 7.8 0.1 566 23 ? Ss 0:10 /usr/sbin/redis-server |
root 1005 7.5 3.3 907 65 ? Ss 0:23 /usr/sbin/rabbitmq-server |
root 1014 7.1 2.5 484 91 ? Ss 0:55 /usr/sbin/rsyslog |
root 1013 5.9 4.7 363 29 ? Ss 0:49 /usr/sbin/nginx |
systemd+ 892 5.3 0.4 222 52 ? Sl 0:05 /lib/systemd/systemd-timesyncd |
root 1017 5.0 4.9 506 54 ? Ss 0:25 /usr/sbin/php8.2-fpm |
mysql 1008 4.6 3.9 769 63 ? Ss 0:21 /usr/sbin/mysql |
root 1002 4.1 3.2 282 27 ? Sl 0:59 /usr/sbin/ufw |
root 1007 4.0 3.2 620 62 ? Sl 0:52 /usr/sbin/elasticsearch |
root 1010 3.4 4.1 315 43 ? Sl 0:46 /usr/sbin/samba |
root 1006 3.1 2.4 318 29 ? Ss 0:32 /usr/sbin/postgresql |
root 1011 2.4 4.1 718 63 ? Ss 0:23 /usr/sbin/network-manager |
root 2 2.4 2.1 651 48 ? Sl 0:10 [kthreadd] |
root 1003 2.4 0.8 164 27 ? Sl 0:05 /usr/sbin/ssh |
root 1009 1.3 1.6 110 45 ? Ss 0:20 /usr/sbin/prometheus |
root 1 1.0 1.6 401 48 ? Sl 0:47 /sbin/init |
root 3 0.0 4.7 514 49 ? Ss 0:04 [ksoftirqd/0] |
<eot><b>🔍 Root cause: A crypto-miner process is consuming 99% CPU. Likely installed through compromised application or vulnerability. |
🔧 Resolution: Terminate the process: kill -9 [PID]. Investigate how it was installed and remove the binary. Check for unauthorized access in auth.log. |
✅ Verification: Run 'top' or 'ps aux' to confirm the process is gone. Monitor for reappearance. |
📋 Recommended next steps: |
• kill -9 [PID] |
• rm -rf /tmp/.crypto-* |
• grep -r 'miner' /var/log/auth.log |
📊 System state evolving... |
<eot> |
<h> |
📋 PROBLEM: |
User 'web' needs to install a package but gets 'Permission denied' when running apt install. They need to set up a new service. |
💻 SYSTEM CONTEXT: |
• OS: Ubuntu 23.04 (Lunar Lobster) |
• Kernel: 6.2.0-39-generic |
• Hostname: app-134-184-151dev |
• User: web |
• Uptime: 24 days, 6:00 |
• Load average: 1.03, 0.16, 1.55 |
⚠️ ERROR MESSAGE: |
E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied) |
🔍 AVAILABLE COMMANDS: |
1. groups |
└ List user groups |
2. cat /etc/sudoers | grep web |
└ Check sudoers file |
3. sudo apt update |
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