timmy revised this gist 9 months ago. Go to revision
1 file changed, 12 insertions, 9 deletions
system_info.sh
| @@ -12,14 +12,17 @@ echo "" | |||
| 12 | 12 | echo "===== [ 檔案描述符資訊 ] =====" | |
| 13 | 13 | echo "當前最大開啟檔案數: $(ulimit -n)" | |
| 14 | 14 | echo "系統允許最大開啟檔案數: $(cat /proc/sys/fs/file-max)" | |
| 15 | - | echo "當前已開啟檔案數量: $(cat /proc/sys/fs/file-nr | awk '{print $1}')" | |
| 15 | + | echo "當前已開啟檔案數量: $(awk '{print $1}' /proc/sys/fs/file-nr)" | |
| 16 | 16 | ||
| 17 | 17 | echo "" | |
| 18 | 18 | echo "===== [ 網路設定 ] =====" | |
| 19 | - | echo "最大接受緩衝區 (rmem_max): $(sysctl -n net.core.rmem_max)" | |
| 20 | - | echo "最大傳輸緩衝區 (wmem_max): $(sysctl -n net.core.wmem_max)" | |
| 21 | - | echo "最大網路佇列 (netdev_max_backlog): $(sysctl -n net.core.netdev_max_backlog)" | |
| 22 | - | echo "最大 socket 連線數 (somaxconn): $(sysctl -n net.core.somaxconn)" | |
| 19 | + | for param in rmem_max wmem_max netdev_max_backlog somaxconn; do | |
| 20 | + | if [ -f "/proc/sys/net/core/$param" ]; then | |
| 21 | + | echo "$param: $(sysctl -n net.core.$param)" | |
| 22 | + | else | |
| 23 | + | echo "$param: [無此參數]" | |
| 24 | + | fi | |
| 25 | + | done | |
| 23 | 26 | ||
| 24 | 27 | echo "" | |
| 25 | 28 | echo "===== [ TCP 設定 ] =====" | |
| @@ -36,10 +39,10 @@ echo "當前連線追蹤數: $(cat /proc/sys/net/netfilter/nf_conntrack_count)" | |||
| 36 | 39 | ||
| 37 | 40 | echo "" | |
| 38 | 41 | echo "===== [ 當前開啟的 TCP 連線 ] =====" | |
| 39 | - | echo "總 TCP 連線數: $(netstat -ant | wc -l)" | |
| 40 | - | echo "TIME_WAIT 連線數: $(netstat -ant | grep TIME_WAIT | wc -l)" | |
| 41 | - | echo "ESTABLISHED 連線數: $(netstat -ant | grep ESTABLISHED | wc -l)" | |
| 42 | + | echo "總 TCP 連線數: $(ss -ant | wc -l)" | |
| 43 | + | echo "TIME_WAIT 連線數: $(ss -ant | grep TIME-WAIT | wc -l)" | |
| 44 | + | echo "ESTABLISHED 連線數: $(ss -ant | grep ESTAB | wc -l)" | |
| 42 | 45 | ||
| 43 | 46 | echo "" | |
| 44 | 47 | echo "===== [ 目前的 sysctl 設定 ] =====" | |
| 45 | - | sysctl -a | grep -E 'fs.file-max|net.core.rmem_max|net.core.wmem_max|net.core.netdev_max_backlog|net.core.somaxconn|net.ipv4.tcp_tw_reuse|net.ipv4.tcp_fin_timeout|net.ipv4.tcp_max_syn_backlog|net.ipv4.tcp_fastopen|net.ipv4.tcp_congestion_control|net.netfilter.nf_conntrack_max' | |
| 48 | + | sysctl -a 2>/dev/null | grep -E 'fs.file-max|net.core.somaxconn|net.ipv4.tcp_tw_reuse|net.ipv4.tcp_fin_timeout|net.ipv4.tcp_max_syn_backlog|net.ipv4.tcp_fastopen|net.ipv4.tcp_congestion_control|net.netfilter.nf_conntrack_max' | |
timmy revised this gist 9 months ago. Go to revision
2 files changed, 49 insertions
README.md(file created)
| @@ -0,0 +1,4 @@ | |||
| 1 | + | ```bash | |
| 2 | + | chmod +x system_info.sh | |
| 3 | + | ./system_info.sh > system_report.txt | |
| 4 | + | ``` | |
system_info.sh(file created)
| @@ -0,0 +1,45 @@ | |||
| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | echo "===== [ 系統基本資訊 ] =====" | |
| 4 | + | echo "作業系統: $(lsb_release -d | cut -f2)" | |
| 5 | + | echo "核心版本: $(uname -r)" | |
| 6 | + | echo "CPU 型號: $(lscpu | grep 'Model name' | sed 's/Model name:\s*//')" | |
| 7 | + | echo "CPU 核心數: $(nproc)" | |
| 8 | + | echo "記憶體狀態:" | |
| 9 | + | free -h | |
| 10 | + | ||
| 11 | + | echo "" | |
| 12 | + | echo "===== [ 檔案描述符資訊 ] =====" | |
| 13 | + | echo "當前最大開啟檔案數: $(ulimit -n)" | |
| 14 | + | echo "系統允許最大開啟檔案數: $(cat /proc/sys/fs/file-max)" | |
| 15 | + | echo "當前已開啟檔案數量: $(cat /proc/sys/fs/file-nr | awk '{print $1}')" | |
| 16 | + | ||
| 17 | + | echo "" | |
| 18 | + | echo "===== [ 網路設定 ] =====" | |
| 19 | + | echo "最大接受緩衝區 (rmem_max): $(sysctl -n net.core.rmem_max)" | |
| 20 | + | echo "最大傳輸緩衝區 (wmem_max): $(sysctl -n net.core.wmem_max)" | |
| 21 | + | echo "最大網路佇列 (netdev_max_backlog): $(sysctl -n net.core.netdev_max_backlog)" | |
| 22 | + | echo "最大 socket 連線數 (somaxconn): $(sysctl -n net.core.somaxconn)" | |
| 23 | + | ||
| 24 | + | echo "" | |
| 25 | + | echo "===== [ TCP 設定 ] =====" | |
| 26 | + | echo "TCP TIME_WAIT 重用: $(sysctl -n net.ipv4.tcp_tw_reuse)" | |
| 27 | + | echo "TCP FIN_TIMEOUT: $(sysctl -n net.ipv4.tcp_fin_timeout)" | |
| 28 | + | echo "TCP SYN 佇列長度: $(sysctl -n net.ipv4.tcp_max_syn_backlog)" | |
| 29 | + | echo "TCP 快速開啟 (Fast Open): $(sysctl -n net.ipv4.tcp_fastopen)" | |
| 30 | + | echo "TCP 擁塞控制演算法: $(sysctl -n net.ipv4.tcp_congestion_control)" | |
| 31 | + | ||
| 32 | + | echo "" | |
| 33 | + | echo "===== [ 連線追蹤 (Conntrack) 設定 ] =====" | |
| 34 | + | echo "最大連線追蹤數: $(sysctl -n net.netfilter.nf_conntrack_max)" | |
| 35 | + | echo "當前連線追蹤數: $(cat /proc/sys/net/netfilter/nf_conntrack_count)" | |
| 36 | + | ||
| 37 | + | echo "" | |
| 38 | + | echo "===== [ 當前開啟的 TCP 連線 ] =====" | |
| 39 | + | echo "總 TCP 連線數: $(netstat -ant | wc -l)" | |
| 40 | + | echo "TIME_WAIT 連線數: $(netstat -ant | grep TIME_WAIT | wc -l)" | |
| 41 | + | echo "ESTABLISHED 連線數: $(netstat -ant | grep ESTABLISHED | wc -l)" | |
| 42 | + | ||
| 43 | + | echo "" | |
| 44 | + | echo "===== [ 目前的 sysctl 設定 ] =====" | |
| 45 | + | sysctl -a | grep -E 'fs.file-max|net.core.rmem_max|net.core.wmem_max|net.core.netdev_max_backlog|net.core.somaxconn|net.ipv4.tcp_tw_reuse|net.ipv4.tcp_fin_timeout|net.ipv4.tcp_max_syn_backlog|net.ipv4.tcp_fastopen|net.ipv4.tcp_congestion_control|net.netfilter.nf_conntrack_max' | |
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