:D 获取中...

1 Intall

  • 开始安装系统，Install or upgrade an existing system
  • 选择Skip,语言选择English
  • 选择基本存储设备，是，放弃所有数据
  • [配置网络DHCP+自动连接],时区选择上海
  • 设置root密码，创建自定义布局，
# for 2T HardDisk
/boot:ext4:500M
/swap:Memory*2 (for mem<4G) and Memory (for mem>4G)  
/:ext4:150G
/home:ext4:rest

# for >4T  HardDisk
/boot:ext4:1G
LVM:
/swap:Memory*2 (for mem<4G) and Memory (for mem>4G)  
/:ext4:200G
/home:ext4:rest
  • 格式化
  • 将改写写入磁盘
  • DeskTop+现在自定义选择合适的软件
  • 一步一步安装。

2 SSH without password

2.1 Unidirectional

  • at node02, ssh-keygen -t rsa,一直Enter。
  • scp ~/.ssh/id_rsa.pub node01:/root/.ssh/
  • login node01,cd ~/.ssh/ && cat id_rsa.pub>>authorized_keys & chmod 600 authorized_keys
  • node02 can login node01, but node01 can not login node02.

2.2 Interflow

  • at node01, ssh-keygen -t rsa,一直Enter。
  • cd ~/.ssh/ && cp id_rsa.pub authorized_keys && chmod 600 authorized_keys
  • scp -r ~/.ssh/* node02:.ssh/

2.3 Add port

su root
# vi /etc/ssh/sshd_config
Port 22
Port 8022

# Add port to firewall
firewall-cmd --permanent --add-port=8022/tcp
firewall-cmd --reload
firewall-cmd --list-all

# Add port to Selinux
semanage port -a -t ssh_port_t -p tcp 8022
semanage port -l |grep ssh
systemctl restart sshd.service

3 Dell IDRAC

  • Bois: IDRAC setting->NetWork->IP设置
  • 浏览器访问IDRAC IP，初始用户名和密码：root/calvin

4 Reset Time

4.1 临时修改时间

  • date -s '2019-09-18 09:25:23'

4.2 永久修改时间

hwclock --set --date '2019-09-18 09:25:23'
hwclock --hctosys
clock -w
date

4.3 远程开机

4.3.1 多个网卡

  • 使用IPMI

4.3.2 单个网卡

  1. BIOS设置来电自动启动
  2. 使用wifi智能插座
  3. 关机时，执行halt,注意不要使用poweroff,然后在手机上app关闭智能插座。
  4. 开机时，手机上app打开智能插座。

4.4 永久修改时区

  1. tzselect,选择 Asia->Hong Kong.
  2. cp /usr/share/zoneinfo/Asia/Hong_Kong /etc/localtime
  3. hwclock -w

5 Linux Softs

5.1 latex,ImageMagick and gnuplot

yum install texlive-latex
yum install ImageMagick
yum install gnuplot

5.2 Plotutils

  • graph -T png -W 0.005 -C -m 1 -S 4 0.05 -g 3 -f 0.05 -X "My X" -Y "My Y" -L "example" < a.dat >b.png

6 Other Tips

  • Whole line replacement: sed -i "/path to env_sched/c export soft_root=\$(dirname \$(cd \$(dirname \${BASH_SOURCE}) && pwd))" topnode

7 NFS

7.1 Server

7.1.1 Install

su root
yum install nfs-utils rpcbind
systemctl enable rpcbind
systemctl enable nfs
systemctl start rpcbind
systemctl start nfs

7.1.2 Firewall

su root
firewall-cmd --zone=public --permanent --add-service={rpc-bind,mountd,nfs}
firewall-cmd --reload
firewall-cmd --list-all

7.1.3 Share Folder

su root
mkdir /data
chmod 755 /data
### vim /etc/exports
/data/ 172.24.3.0/24(rw,async)


systemctl restart nfs
showmount -e localhost

7.2 Client on linux

7.2.1 Manual mount

mkdir /home/data
sudo mount -t nfs  xx.xx.xx.xx:/data/   /home/data/
sudo mount |grep data

7.2.2 Auto mount

###/etc/fstab
xx.xx.xx.xx:/data/   /home/data/ nfs 

mount -a

7.3 Client on Windows

  • Start NFS service on windows (prefessional version).
  • mount -o \\xx.xx.xx.xx\data\ K:
  • or win+E, open Map Network Drive and add.

8 VNC

8.1 Server on Cent OS 7.4

8.1.1 VNC Setting

su root
yum install tigervnc tigervnc-server
firewall-cmd --list-all
firewall-cmd --permanent --add-port=5936/tcp
firewall-cmd --reload
firewall-cmd --list-all
``

```sh
### 
cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:53.service
## Chang <USER> to your username (e.g., mu) in /etc/systemd/system/vncserver@:53.service as follows:
[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking
#User=<USER>

# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=-/usr/bin/vncserver -kill %i
ExecStart=/usr/sbin/runuser -l mu -c "/usr/bin/vncserver %i"
PIDFile=/home/mu/.vnc/%H%i.pid
ExecStop=-/usr/bin/vncserver -kill %i

[Install]
WantedBy=multi-user.target

8.1.2 Service and Firewall

### 
su mu
vncpasswd
### vim /home/mu/.vnc/config
geometry=1920x11080

su root
systemctl start vncserver@\:53.service
systemctl daemon-reload
systemctl enable vncserver@\:53.service

8.2 Viewer

9 CUDA installation on Cent OS 7.4

9.1 Ban nouvean module

su root
lsmod | grep nouveau
## vi  /etc/modprobe.d/blacklist-nouveau.conf and /etc/modprobe.d/blacklist.conf, and add
blacklist nouveau
options nouveau modeset=0

#####
mv /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r)-nouveau.img  
dracut -v /boot/initramfs-$(uname -r).img $(uname -r)
reboot
lsmod | grep nouveau

9.2 Installation

su root
## install base
sh cuda_9.2.148_396.37_linux.run
## install patch
sh cuda_9.2.148_1_linux.run

10 GCC

11 gcc 7.5 installation

http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-7.5.0/gcc-7.5.0.tar.gz
tar -xf gcc-7.5.0.tar.gz
cd gcc-7.5.0
contrib/download_prerequisites
mkdir gccbuild
cd gccbuild
../configure --prefix=/home/ywmu/backup/Src/gcc/gcc75  --enable-boostrap --disable-multilib --enable-languages=c,c++,fortran,lto,go
make
make install

12 Add GPT Disk

su root
fdisk -l
lsblk

parted /dev/sdc
(parted)mklabel gpt
(parted)mkpart paper xfs 0% 100%
(parted)p
(parted)q

mkfs.xfs -f /dev/sdc1
blkid /dev/sdc1

mkdir /home/muyw/paper2
mount -t xfs /dev/sdc1 /home/muyw/paper2
df -Th
 
# vi /etc/fstab
UUID=0d50d979-8479-42ef-b2a6-XXXXX /home/muyw/paper2            xfs     defaults        0 0
mount -a

13 SSH

13.1 Keep SSH Connection Alive

  1. On target host and transit servers (including frp server),
sudo vi /etc/ssh/sshd_config
## modify 
TCPKeepAlive yes
ClientAliveInterval 30
ClientAliveCountMax 30
## end

sudo systemctl restart sshd
  1. On Putty
# Connection -> Seconds between keepalive(0 to turn off), set 10