yum update -y
rpm -q kernel
package-cleanup --oldkernels --count=1 -y
分類彙整: os
install bash 4.0/5.0 on macos
透過brew安裝
brew install bash
設定預設路徑
將/usr/local/Cellar/bash/5.0.7/bin/bash設定為shell預設啟動指令:
[k8s] 建立使用者及namespace
建立namespaces
kubectl create ns slanla
建立user
kubectl -n tw-sgis create sa slanla
RBAC 授權
建立規則
cat <<EOF > slanla-user-role.yml
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
namespace: tw-sgis
name: slanla-user-pod
rules:
- apiGroups: ["*"]
resources: ["pods", "pods/log"]
verbs: ["get", "watch", "list", "update", "create", "delete"]
EOF
kubectl apply -f slanla-user-role.yml
授權對象
kubectl create rolebinding slanla-view-pod \
--role=slanla-user-pod \
--serviceaccount=tw-sgis:slanla \
--namespace=tw-sgis
產生設定檔
取得 secret 資訊
SECRET=$(kubectl -n tw-sgis get sa slanla -o go-template='{{range .secrets}}{{.name}}{{end}}')
設定API Server
API_SERVER="https://xxx.xxx.xxx.xxx:6443"
取得 ca
CA_CERT=$(kubectl -n tw-sgis get secret ${SECRET} -o yaml | awk '/ca.crt:/{print $2}')
建立
cat <<EOF > slanla.conf
apiVersion: v1
kind: Config
clusters:
- cluster:
certificate-authority-data: $CA_CERT
server: $API_SERVER
name: cluster
EOF
取得token
TOKEN=$(kubectl -n tw-sgis get secret ${SECRET} -o go-template='{{.data.token}}')
設定 token
kubectl config set-credentials slanla-user \
--token=`echo ${TOKEN} | base64 -d` \
--kubeconfig=slanla.conf
建立context: default
kubectl config set-context default \
--cluster=cluster \
--user=slanla-user \
--kubeconfig=slanla.conf
指定context: default
kubectl config use-context default \
--kubeconfig=slanla.conf
centsos 基本安裝參考指令
#更新
yum update -y && yum autoremove -y
#安裝常用工具,如vim/wget/openssh-server/nslookup/ping/ifconfig
yum install -y git vim wget openssh* nfs-utils nfs-utils-lib open-vm-tools net-tools bind-utils iputils yum-utils
#設定ssh
mkdir -p ~/.ssh
cat <<EOF > ~/.ssh/config
Host *
StrictHostKeyChecking no
EOF
#關閉swap
SWAPLINE=$(cat /etc/fstab | grep swap | awk '{print $1}' | sed 's/\//\\\//g')
sed -i "s/$SWAPLINE/#$SWAPLINE/g" /etc/fstab
swapoff -a
free -m
#關閉SELINUX
setenforce 0
sed -i s/^SELINUX=.*$/SELINUX=disabled/ /etc/selinux/config
systemctl disable firewalld.service
systemctl disable libvirtd.service
#Forward Policy
iptables -P FORWARD ACCEPT
#關閉防火牆
iptables -P FORWARD ACCEPT
systemctl stop firewalld
systemctl disable firewalld
#NTP校時
yum install ntp ntpdate ntp-doc -y
cat > /etc/ntp.conf <<EOL
restrict 127.0.0.1
restrict ::1
server time.stdtime.gov.tw minpoll 1 maxpoll 3
server tock.stdtime.gov.tw minpoll 2 maxpoll 3
server watch.stdtime.gov.tw minpoll 3 maxpoll 4
server clock.stdtime.gov.tw minpoll 4 maxpoll 5
server tick.stdtime.gov.tw minpoll 5 maxpoll 6
includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
disable monitor
EOL
systemctl stop ntpd
ntpdate time.stdtime.gov.tw
systemctl enable ntpd
systemctl start ntpd
ntpq -p
miniconda 安裝
安裝 miniconda
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -O ~/miniconda.sh
bash ~/miniconda.sh -b -p $HOME/miniconda
路徑設定
echo 'PATH="$HOME/miniconda/bin:$PATH"' >> ~/.bash_profile
chmod +x ~/.bash_profile
PATH="$HOME/miniconda/bin:$PATH"
generate random string on mac/ubuntu bash script
macos/ubuntu supported
rand_str=$(cat /dev/urandom | env LC_CTYPE=C tr -dc a-zA-Z0-9 | head -c 16)
echo $rand_str
macos unsupported
rand_str=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
echo $rand_str
chmod 設定權限
設定test資料夾下的所有檔案權限
find test -type f -exec chmod 644 {} +
設定test資料夾下的所有資料夾權限
find test -type d -exec chmod 755 {} +
Ubuntu 16.04 架設HylaFAX筆記
1.首先需要一個USB Modem以及一台Ubuntu(這邊是在iMac下用Parallels Desktop跑Ubuntu 16.04)
2.設定ttyACM相關權限
編輯udev
sudo vim /etc/udev/rules.d/70-ttyusb.rules
加入下面設定:
KERNEL=="ttyUSB[0-9]*",MODE="0666"
KERNEL=="ttyACM[0-9]*",MODE="0666"
以及透過chmod修改權限
sudo chmod o+rw /dev/ttyS0
3.安裝
sudo apt-get update
DEBIAN_FRONTEND=noninteractive sudo apt-get install -y cu hylafax-server hylafax-client
4.測試USB Modem
sudo cu -l ttyS0
出現connected.既可按兩下“.離開
5.設定HylaFAX
sudo faxsetup
6.設定撥號前按下0
sudo vim /var/spool/hylafax/etc/config.ttyACM0
修改ModemDialCmd設定:
ModemDialCmd: ATX3D0T%s # press 0 before dialing
7.傳真a.pdf至11223344
sendfax -n -d 11223344 a.pdf
8.查看
#歷史狀態
faxstat -d
#接收狀態
faxstat -r
#傳送狀態
faxstat -s
9.刪除job 1
faxrm 1
10.清除所有傳送資料(如果隔一陣子想要清除所有傳送資料的話)
sudo service hylafax stop
sudo rm -rf /var/spool/hylafax/docq/*
sudo rm -rf /var/spool/hylafax/doneq/*
sudo rm -rf /var/spool/hylafax/info/*
sudo rm -rf /var/spool/hylafax/log/*
sudo rm -rf /var/spool/hylafax/sendq/*
sudo service hylafax restart
faxstat -d
install nodejs on macos with nvm
#安裝nvm
brew install nvm
#設定路徑
echo "source $(brew --prefix nvm)/nvm.sh" >> ~/.bash_profile
. ~/.bash_profile
#查看版本
nvm ls-remote
#安裝8.x
nvm install v8.15.1
#顯示已安裝版本
nvm ls
#切換版本
nvm use v8.15.1
#設定PATH
echo "PATH=$PATH:$(dirname $(nvm which v8.15.1))" >> ~/.bash_profile
. ~/.bash_profile
install docker 18.06 on raspberry pi
最近在raspberry pi上面安裝docker 18.09後,
會發生無法啟動docker的問題.
因此需要降版至18.06,語法如下:
sudo apt-mark unhold docker-ce
sudo apt-get purge -y docker-ce
sudo apt-get autoremove -y --purge docker-ce
sudo apt-get autoclean
sudo rm -rf /var/lib/docker
export VERSION=18.06 && curl -sSL get.docker.com | sh
sudo apt-mark hold docker-ce