ROS历史版本下载
ROS历史版本下载
https://www.routeros.co.id/
https://www.mikrotik.com/download/archive
none
IPMITOOL单机批量执行命令
首先得安装有ipmitool或者OpenIPMI的包以及加载相应的内核模块
yum install ipmitool -y -q modprobe ipmi_watchdog modprobe ipmi_poweroff modprobe ipmi_devintf modprobe ipmi_si
执行例子
ipmitool exec ipmi.txt -I lanplus -U '用户' -P '密码' -H IP地址
ipmi.txt内容例子
power status sensor mc info user list lan print
主要是把所有的命令写在一个文本里面, 不用每次发送命令都带上IP 用户名密码等等
尤其是遇上更改IPMI的IP配置和用户配置的时候, 省去了一大部分的冗余操作.
通过ssh备份juniper配置文件
首先,为了方便rsa免密码登陆要事先准备好.
其次,如果有堡垒机穿透也要事先在ssh/config下配置好.
方法一
ssh [email protected] "cli<< EOF show configuration|dis set EOF " |grep set >junos.backup.txt
方法二
ssh [email protected] 'csh -s' <./backup.sh |grep set > junos.backup.txt
方法二是用csh -s将本地的脚本文件内容抛到juniper上执行.
centos下的docker安装
源码仓库安装
wget https://download.docker.com/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo yum -y install docker-ce systemctl start docker
脚本安装
curl -fsSL https://get.docker.com |bash sh get-docker.sh
奇怪的iredmail安装脚本之一
源码安装
wget https://github.com/iredmail/iRedMail/archive/1.2.1.tar.gz -O -|tar xz cd iRedMail-* bash iRedMail.sh
Docker安装
docker volume create iRedMail docker run \ --rm \ --name iredmail \ --env-file /iredmail/iredmail-docker.conf \ --hostname Your-domian..com \ -p 80:80 \ -p 443:443 \ -p 110:110 \ -p 995:995 \ -p 143:143 \ -p 993:993 \ -p 25:25 \ -p 465:465 \ -p 587:587 \ -v /iredmail/data/backup:/var/vmail/backup \ -v /iredmail/data/mailboxes:/var/vmail/vmail1 \ -v /iredmail/data/mlmmj:/var/vmail/mlmmj \ -v /iredmail/data/mlmmj-archive:/var/vmail/mlmmj-archive \ -v /iredmail/data/imapsieve_copy:/var/vmail/imapsieve_copy \ -v /iredmail/data/custom:/opt/iredmail/custom \ -v /iredmail/data/ssl:/opt/iredmail/ssl \ -v /iredmail/data/mysql:/var/lib/mysql \ -v /iredmail/data/clamav:/var/lib/clamav \ -v /iredmail/data/sa_rules:/var/lib/spamassassin \ iredmail/mariadb:nightly
奇怪的安装mysql脚本之一
groupadd mysql -g 27
useradd mysql -u 27 -g 27 -c "MySQL Server" -d /home/mysql -m
function代码
function install_mysql() {
groupadd mysql
useradd -s /sbin/nologin -M -g mysql mysql
if [ -n "$1" ] ; then mysqlrootpwd=$1; else mysqlrootpwd=`openssl rand -base64 32| tr -dc _A-Z-a-z-0-9 | head -c12`; fi
echo root $mysqlrootpwd ' | ' `date` >> /root/mysql.txt
yum -y -q install mariadb mariadb-server galera
ln -s /usr/lib/systemd/system/mariadb.service /usr/lib/systemd/system/mysql.service
systemctl enable mariadb
systemctl start mariadb
mysqladmin -u root password $mysqlrootpwd
setmyqlroot $mysqlrootpwd
sed -i 's/skip-locking/skip-external-locking/g' /etc/my.cnf
}
function setmyqlroot() {
if [ -n "$1" ] ; then mysqlrootpwd=$1; else mysqlrootpwd=`openssl rand -base64 32| tr -dc _A-Z-a-z-0-9 | head -c12`; echo root $mysqlrootpwd ' | ' `date` >> /root/mysql.txt ; fi
mysql -uroot -p$mysqlrootpwd <<EOF
UPDATE mysql.user SET Password=PASSWORD("$mysqlrootpwd") WHERE User='root';
DELETE FROM mysql.user WHERE User='';
DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');
DROP DATABASE IF EXISTS test;
DELETE FROM mysql.db WHERE Db='test' OR Db='test\\_%';
FLUSH PRIVILEGES;
exit
EOF
}执行安装
install_mysql()
mysql_install_db --user=mysql --datadir=/home/mysql --no-defaults &
mysqladmin -u root password $mysqlrootpwd
centos下vsftpd简易快速部署
有很久没用vsftpd了, 最近做自动备份需要用到ftp服务器, 思来想去也只有vsftp简单粗暴快捷了.
function setftpuser() {
setpassword=`openssl rand -base64 12|tr -dc _A-Z-a-z-0-9`;
adduser $1
echo $1 >> /etc/vsftpd/chroot_list
chmod 750 /home/$1
echo $1:$setpassword|chpasswd
echo $1 $setpassword;
echo $1 $setpassword > /root/vsftp.txt;
}
function vsftp-setup{
yum -y install vsftpd
cp /etc/vsftpd/vsftpd.conf /etc/vsftpd/vsftpd.conf.default
sed -i 's#anonymous_enable=YES#anonymous_enable=NO#g' /etc/vsftpd/vsftpd.conf
sed -i 's#listen=NO#listen=YES#g' /etc/vsftpd/vsftpd.conf
sed -i 's#listen_ipv6=YES#listen_ipv6=NO#g' /etc/vsftpd/vsftpd.conf
sed -i 's/#chroot_/chroot_/g' /etc/vsftpd/vsftpd.conf
systemctl enable vsftpd
systemctl start vsftpd
}
vsftp-setup #安装vsftpd
setftpuser 用户名 #添加用户ssh jail环境没有弄, 后面有精力再弄上.
RouterOS NAT内网映射
/ip firewall nat add chain=srcnat src-address=内网IP段/24 protocol=tcp action=masquerade add action=dst-nat chain=dstnat dst-address=公网IP dst-port=80,443,5900 protocol=tcp to-addresses=内网IP to-ports=0-65535 add action=dst-nat chain=dstnat dst-address=公网IP dst-port=623 protocol=udp to-addresses=内网IP to-ports=0-65535
怕忘记了,懒得到处找.
关于LVM丢分区和丢数据(最近又又又发生了)
LVM在linux下灵活划分硬盘空间分区是非常好用的一个东西.
从centos5开始到现在还在用的centos7, 我一直都在和lvm做斗争.
问题其实也简单, 无非就是lv分区导致丢失: 分区的md编号错乱丢失lv, lvremove恢复后丢失lv, 以及还有许多已经忘记的原因.
上月由于机柜搬迁数据中心的问题, 一些宿主服务器子系统较多关机时间太长, 在半路进行了强制关机.
然而在恢复完后就发现一些子系统没有恢复, 由于标签显示是自用的节点又暂时没有时间就延后处理了.
今天清点后发现全是自用的节点, 好在都是非一线重要的东西.
7月底一台快7年的E3 4x1T RAID10的服务器硬盘挂掉导致whmcs数据丢失了一部分重要的数据,
又因为之前迁移进来后没有做定时数据备份, 好在抢救到的数据能维持正常运行, 覆盖早先的备份后一切正常,
此事算妥善处理完成了.
丢数据的事其实已经亲身遇上过很多次了, 硬盘坏掉和LVM丢分区的事每年都有遇上, 即使有RAID也会翻车的可能.
从第一次在webnx的RAID10挂掉, 到LVM串联硬盘分区, 再到rm -rf 数据库, 以及这次又是RAID的挂掉.
数据备份不能马虎, 一定要做, 且异地备份 本地备份 差异备份 同步备份 都要做上, 数据越重要就越需要做备份.
有2次丢掉财务数据库经验的我总结的经验是, 不是每次都那么幸运可以靠手动修复数据.
有时候没了就是没了, 说啥都没有用.
Let’s Encrypt/Certbot Wildcard SSL certificate
export LC_ALL="en_US.UTF-8" export LC_CTYPE="en_US.UTF-8" yum install -y git cd /opt git clone https://github.com/certbot/certbot.git cd certbot && ./certbot-auto /opt/certbot/certbot-auto certonly --manual --preferred-challenges dns -d *.域名.后缀
--preferred-challenges dns的参数会要求建立一个_acme-challenge.的txt dns指向记录验证域名.
./certbot-auto certificates
comware设置ssh免密码登陆
ssh-keygen -f .ssh/id_rsa.pub -e -m pem | grep -v '\-\-\-\-' | base64 -d | xxd -p #转换已有的rsa key
免密码登陆ssh
####交换机配置 rsa peer-public-key 1 public-key-code begin #此处是转换后的key数据 public-key-code end peer-public-key end # user-interface vty 0 4 authentication-mode aaa user privilege level 15 protocol inbound ssh # aaa local-user 用户名 password cipher 密码 privilege level 15 #local-user netadmin privilege level 15 local-user 用户名 service-type stelnet local-user 用户名 service-type ssh # stelnet server enable ssh user 用户名 authentication-type rsa ssh user 用户名 assign rsa-key 1 ssh user 用户名 service-type stelnet
设置密码登陆方式
user-interface vty 0 4 authentication-mode aaa protocol inbound ssh # aaa local-user 用户名 password cipher 密码 privilege level 15 local-user 用户名 service-type stelnet local-user 用户名 service-type ssh # stelnet server enable ssh user 用户名 authentication-type password ssh user 用户名 service-type stelnet
ubuntu把netplan改回ifupdown
The following procedure works for Ubuntu 18.04 (Bionic Beaver)
I. Reinstall the ifupdown package:
# apt-get update # apt-get install ifupdown
II. Configure your /etc/network/interfaces file with configuration stanzas such as:
source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback allow-hotplug enp0s3 auto enp0s3 iface enp0s3 inet static address 192.168.1.133 netmask 255.255.255.0 broadcast 192.168.1.255 gateway 192.168.1.1 # Only relevant if you make use of RESOLVCONF(8) # or similar... dns-nameservers 1.1.1.1 1.0.0.1
III. Make the configuration effective (no reboot needed):
# ifdown --force enp0s3 lo && ifup -a # systemctl unmask networking # systemctl enable networking # systemctl restart networking
IV. Disable and remove the unwanted services:
# systemctl stop systemd-networkd.socket systemd-networkd \ networkd-dispatcher systemd-networkd-wait-online # systemctl disable systemd-networkd.socket systemd-networkd \ networkd-dispatcher systemd-networkd-wait-online # systemctl mask systemd-networkd.socket systemd-networkd \ networkd-dispatcher systemd-networkd-wait-online # apt-get --assume-yes purge nplan netplan.io
Then, you're done.
Note: You MUST, of course, adapt the values according to your system (network, interface name...).
nginx屏蔽搜索引擎
在http字段下加入一个map做匹配引导
map $http_user_agent $limit_bots {
default 0;
~*(baiduspider|google|soso|bing|yandex|sogou|yahoo|sohu-search|yodao|YoudaoBot|robozilla|msnbot|MJ12bot|NHN|Twiceler) 1;
~*(AltaVista|Googlebot|Slurp|BlackWidow|Bot|ChinaClaw|Custo|DISCo|Download|Demon|eCatch|EirGrabber|EmailSiphon|EmailWolf|SuperHTTP|Surfbot|WebWhacker) 1;
~*(Express|WebPictures|ExtractorPro|EyeNetIE|FlashGet|GetRight|GetWeb!|Go!Zilla|Go-Ahead-Got-It|GrabNet|Grafula|HMView|Go!Zilla|Go-Ahead-Got-It) 1;
~*(rafula|HMView|HTTrack|Stripper|Sucker|Indy|InterGET|Ninja|JetCar|Spider|larbin|LeechFTP|Downloader|tool|Navroad|NearSite|NetAnts|tAkeOut|WWWOFFLE) 1;
~*(GrabNet|NetSpider|Vampire|NetZIP|Octopus|Offline|PageGrabber|Foto|pavuk|pcBrowser|RealDownload|ReGet|SiteSnagger|SmartDownload|SuperBot|WebSpider) 1;
~*(Teleport|VoidEYE|Collector|WebAuto|WebCopier|WebFetch|WebGo|WebLeacher|WebReaper|WebSauger|eXtractor|Quester|WebStripper|WebZIP|Wget|Widow|Zeus) 1;
~*(Twengabot|htmlparser|libwww|Python|perl|urllib|scan|Curl|email|PycURL|Pyth|PyQ|WebCollector|WebCopy|webcraw) 1;
}再到server字段或者是location字段下加入if判断
if ($limit_bots = 1) { return 403; }