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управление_ядром_и_модулями_в_linux
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управление_ядром_и_модулями_в_linux [2025/12/21 07:25] val |
управление_ядром_и_модулями_в_linux [2026/05/06 10:27] (current) val [Модули ядра] |
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| Line 10: | Line 10: | ||
| ===== Модули ядра ===== | ===== Модули ядра ===== | ||
| <code> | <code> | ||
| + | $ less /boot/config-$(uname -r) | ||
| + | |||
| # find /lib/modules/`uname -r`/kernel/ | # find /lib/modules/`uname -r`/kernel/ | ||
| Line 42: | Line 44: | ||
| # ###sysctl -w net.ipv4.ping_group_range="1 65535" | # ###sysctl -w net.ipv4.ping_group_range="1 65535" | ||
| + | |||
| + | # cat /proc/sys/net/ipv4/ip_local_port_range | ||
| + | или | ||
| + | # sysctl net.ipv4.ip_local_port_range | ||
| + | |||
| # cat /etc/sysctl.conf | # cat /etc/sysctl.conf | ||
| Line 50: | Line 57: | ||
| ==== core dump ==== | ==== core dump ==== | ||
| - | * [[https://lwn.net/Articles/104341/]] | + | * [[https://lwn.net/Articles/104341/|PATCH: setuid core dump take 2]] |
| - | * [[https://wiki.astralinux.ru/pages/viewpage.action?pageId=8618002|Включение сохранения дампов]] | + | |
| + | <code> | ||
| + | # sysctl fs.suid_dumpable=2 | ||
| + | |||
| + | # sysctl kernel.core_pattern=/var/coredumps/%e-%p.core | ||
| + | |||
| + | # mkdir /var/coredumps/ | ||
| + | |||
| + | # ulimit -c unlimited | ||
| + | |||
| + | # sleep 20 & pkill -11 sleep | ||
| + | |||
| + | # ls -l /var/coredumps/ | ||
| + | </code> | ||
| + | |||
| + | * [[https://unix.stackexchange.com/questions/345595/how-to-set-ulimits-on-service-with-systemd|How to set ulimits on service with systemd?]] | ||
| + | * [[Управление сервисами в Linux#Настройка параметров запуска в Systemd]] | ||
| <code> | <code> | ||
| - | mail:~# sysctl fs.suid_dumpable | + | # ps ax | grep ssh |
| - | fs.suid_dumpable = 2 | + | |
| - | mail:~# sysctl kernel.core_pattern | + | # kill -11 <PID> |
| - | kernel.core_pattern = /var/coredumps/%e-%p.core | + | |
| </code> | </code> | ||
управление_ядром_и_модулями_в_linux.1766291144.txt.gz · Last modified: 2025/12/21 07:25 by val
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