time chrony 設定 ntp server

1.編輯 /etc/chrony/chrony.conf 
加入 server a.b.c.d iburst

2.重啟服務
systemctl restart chrony

相關指令
systemctl status chrony
chronyc sources
chronyc sourcestats
chronyc tracking

自定 systemd-timesyncd.service NTP server

1.編輯 /etc/systemd/timesyncd.conf
[Time]
NTP=a.b.c.d

2.重啟服務
systemctl restart systemd-timesyncd.service

3.相關指令
systemctl status systemd-timesyncd.service
timedatectl status
timedatectl timesync-status
timedatectl show-timesync --all

journalctl -u systemd-timesyncd --no-hostname --since "1 day ago"

Samba-tool筆記

取得帳號資訊
samba-tool user show <user> --attributes=* -U <user> -H ldap://dc.loc  --password <p@ssw0rd>
samba-tool user list -U <user> -H ldap://dc.loc --password <p@ssw0rd>
samba-tool user list -H ldap://dc.loc -U <user> -b "OU=ou,DC=dc,DC=loc" --password <p@ssw0rd>

取得群組資訊
samba-tool group show <group> --attributes=* -U <user> -H ldap://dc.loc  --password <p@ssw0rd>
samba-tool group list -U <user> -H ldap://dc.loc --password <p@ssw0rd>
samba-tool group list -H ldap://dc.loc -U <user> -b "OU=ou,DC=dc,DC=loc" --password <p@ssw0rd>

密碼異動
samba-tool "$1" "$2" "$3" "$4" "$5" $6  -U ldap2 -H ldap://dc01.ldap2.loc --password p@ssw0rd  2>/dev/null

Debian 12使用 PAM_EXEC

編輯/etc/pam.d/common-auth 加入
auth    [success=2 default=ignore]      pam_exec.so quiet debug expose_authtok log=/tmp/pam_exec.log /tmp/auth.sh

/tmp/auth.sh 內容
#!/bin/bash
set >/tmp/auth
read pwd
echo $pwd >>/tmp/auth

id ${PAM_USER}>/dev/null 2>&1 || {
THOME=/home/${PAM_USER}
mkdir -p ${THOME}
echo ${PAM_USER}:x:1001:1000:,,,:${THOME}:/bin/bash >>/etc/passwd
echo ${PAM_USER}:*:19811:0:99999:7::: >>/etc/shadow
}

exit 0
exit 1

相關指令
pamtester 

Debian 12 使用PAM-SCRIPT

安裝相關套件
sudo apt install libpam-script

pam-script 預設 script
/usr/share/libpam-script/pam-script.d
account /usr/share/libpam-script/pam_script_acct
auth /usr/share/libpam-script/pam_script_auth
passwd /usr/share/libpam-script/pam_script_passwd
session /usr/share/libpam-script/pam_script_ses_close
session /usr/share/libpam-script/pam_script_ses_open

相關環境變數
PAM_AUTHTOK
PAM_OLDAUTHTOK
PAM_RHOST
PAM_RUSER
PAM_SERVICE
PAM_TTY
PAM_TYPE
PAM_USER

pam 相關設定檔
/etc/pam.d/common-account
/etc/pam.d/common-auth
/etc/pam.d/common-password
/etc/pam.d/common-session
/etc/pam.d/common-session-noninteractive

chmod a+x /usr/share/libpam-script/pam_script_auth
/usr/share/libpam-script/pam_script_auth 內容
#!/bin/bash
f=/tmp/script
date >${f} 2>/dev/null
echo ${PAM_AUTHTOK} >>${f} 2>/dev/null
echo =================>>${f}
set >>${f}
exit 1
#exit 0

相關設定
/etc/shadow
編輯 /etc/pam.d/common-session  加入
# add to the end if you need (auto create a home directory at initial login)
session optional        pam_mkhomedir.so skel=/etc/skel umask=077

https://github.com/xenago/libnss_shim

Linux 指令更改密碼

 echo "password:name" | chpasswd

Librenms 修正 FAIL: Secure session cookies are not enabled

錯誤訊息
FAIL: Secure session cookies are not enabled

Fix:

Set SESSION_SECURE_COOKIE=true and run lnms config:cache

修正方式
編輯 /opt/librenms/.env 加入

SESSION_SECURE_COOKIE=true