From ee55630dcb85b065ac73fe34bb9db93117054648 Mon Sep 17 00:00:00 2001
From: weiliang <1067599390@qq.com>
Date: Thu, 26 Oct 2023 13:34:32 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E6=96=87=E6=A1=A3=E5=86=85?=
 =?UTF-8?q?=E5=AE=B9?=
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---
 ...53\345\242\231\347\233\270\345\205\263.md" |  1 -
 ...66\346\211\223\345\274\200\346\225\260.md" | 35 +++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 "1.Linux\345\237\272\347\241\200/1.3\347\263\273\347\273\237\350\256\276\347\275\256/11\346\226\207\344\273\266\346\211\223\345\274\200\346\225\260.md"

diff --git "a/1.Linux\345\237\272\347\241\200/1.1\345\270\270\347\224\250shell/\351\230\262\347\201\253\345\242\231\347\233\270\345\205\263.md" "b/1.Linux\345\237\272\347\241\200/1.1\345\270\270\347\224\250shell/\351\230\262\347\201\253\345\242\231\347\233\270\345\205\263.md"
index 9d849f55..2d46d68b 100644
--- "a/1.Linux\345\237\272\347\241\200/1.1\345\270\270\347\224\250shell/\351\230\262\347\201\253\345\242\231\347\233\270\345\205\263.md"
+++ "b/1.Linux\345\237\272\347\241\200/1.1\345\270\270\347\224\250shell/\351\230\262\347\201\253\345\242\231\347\233\270\345\205\263.md"
@@ -44,5 +44,4 @@ iptables -t raw -F
 iptables -t raw -X
 iptables -t raw -P PREROUTING ACCEPT
 iptables -t raw -P OUTPUT ACCEPT
-
 ```
\ No newline at end of file
diff --git "a/1.Linux\345\237\272\347\241\200/1.3\347\263\273\347\273\237\350\256\276\347\275\256/11\346\226\207\344\273\266\346\211\223\345\274\200\346\225\260.md" "b/1.Linux\345\237\272\347\241\200/1.3\347\263\273\347\273\237\350\256\276\347\275\256/11\346\226\207\344\273\266\346\211\223\345\274\200\346\225\260.md"
new file mode 100644
index 00000000..fb6a2cc5
--- /dev/null
+++ "b/1.Linux\345\237\272\347\241\200/1.3\347\263\273\347\273\237\350\256\276\347\275\256/11\346\226\207\344\273\266\346\211\223\345\274\200\346\225\260.md"
@@ -0,0 +1,35 @@
+## ulimit
+
+### PAM模块
+
+ssh 开启 pam 模块后应修改以下文件
+
+- /etc/pam.d/su 
+- /etc/pam.d/sshd 
+- /etc/pam.d/login 
+- /etc/pam.d/cron
+
+添加如下内容
+
+```shell
+session required pam_limits.so
+```
+
+重启生效
+
+```shell
+systemctl restart sshd
+```
+
+修改`/etc/security/limits.conf`文件，用户列不能用`*`号，否则`root`登录后执行`ulimit -n` 值不对
+
+```shell
+root	soft	nofile	1048567
+root	hard	nofile	1048567
+root	soft	nproc	65535
+root	hard	nproc	65535
+```
+
+```shell
+NOTE: group and wildcard limits are not applied to the root user. To set a limit for the root user, this field must contain the literal username root.
+```
\ No newline at end of file