Ubuntu 16.04/18.04 installation

Ubuntu 在安裝完成時會設DHCP 並自動取得 IP,可透過文字介面來手動設定固定IP。

1.修改 Ethernet 網路設定

root@management:~# vim /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).source /etc/network/interfaces.d/*# The loopback network interface
auto lo
iface lo inet loopback# The primary network interface
auto ens160
iface ens160 inet static # 固定 (靜態) IP
address 10.159.xx.xx # IP 位址
netmask 255.255.255.0 # 網路遮罩
gateway 10.159.xx.xx # 預設閘道
dns-nameservers 168.95.1.1 #DNS第一組
dns-nameservers 8.8.8.8 #DNS第二組


2. 修改完可使用以下指令重新啟動網路讀取網路設定
root@management:~# /etc/init.d/networking restart
[ ok ] Restarting networking (via systemctl): networking.service


Add User Ubuntu create user account commands
Let us say you need to add a new user in Ubuntu called vivek, type the following command in your shell:

$ sudo adduser John

Verify
$ cat /etc/passwd

Ubuntu 快速將使用者設成 Sudoer
max@ubuntu:~$ sudo adduser s01224566 sudo
Adding user `s01224566' to group `sudo' ...
Adding user s01224566 to group sudo
Done.

max@ubuntu:~$ sudo cat /etc/group | grep sudo
sudo:x:27:max,sena,gary,s01224566

Ubuntu 18.04 Configuring the network interface

Edit /etc/netplan/00-installer-config.yaml

# This file describes the network interfaces available on your system

# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp0s3:

     dhcp4: yes/no

     addresses:  [192.168.1.222/24]

     gateway4: 192.168.1.1

     nameservers:

       addresses: [8.8.8.8,8.8.4.4]

$sudo netplan apply

Windows Server 2016/2019 Evaluation: How to extend the Trial Period

Windows Server 2016/2019 Evaluation: How to extend the Trial Period

start PowerShell and run slmgr.
slmgr -dlv

When the period comes to an end, run slmgr -rearm to extend it by another 180 days.
slmgr -rearm

Next restart your computer.
Restart-Computer

Once restarted, open PowerShell and check your settings.

slmgr -dli

Gitlab 備份筆記

主要指令:
git-server@ubuntu:/opt/gitlab/bin$ gitlab-rake gitlab:backup:create
/usr/bin/gitlab-rake error: could not load /opt/gitlab/etc/gitlab-rails/gitlab-r                                                                                               ails-rc
Either you are not allowed to read the file, or it does not exist yet.
You can generate it with:   sudo gitlab-ctl reconfigure
git-server@ubuntu:/opt/gitlab/bin$ sudo gitlab-rake gitlab:backup:create
2019-10-07 15:16:40 +0800 -- Dumping database ...
Dumping PostgreSQL database gitlabhq_production ... [DONE]
2019-10-07 15:16:41 +0800 -- done
2019-10-07 15:16:41 +0800 -- Dumping repositories ...
 * yuching/ofco_ching (@hashed/4e/07/4e07408562bedb8b60ce05c1decfe3ad16b72230967                                                                                               de01f640b7e4729b49fce) ... [SKIPPED]
[SKIPPED] Wiki
 * yenpc/my_first_test (@hashed/79/02/7902699be42c8a8e46fbbb4501726517e86b22c56a                                                                                               189f7625a6da49081b2451) ... [DONE]
[SKIPPED] Wiki
 * sapido-iot/egssys (@hashed/3f/db/3fdba35f04dc8c462986c992bcf875546257113072a9                                                                                               09c162f7e470e581e278) ... [DONE]
[SKIPPED] Wiki

:::

2019-10-07 15:22:23 +0800 -- done
2019-10-07 15:22:23 +0800 -- Dumping lfs objects ...
2019-10-07 15:22:23 +0800 -- done
2019-10-07 15:22:23 +0800 -- Dumping container registry images ...
2019-10-07 15:22:23 +0800 -- [DISABLED]
Creating backup archive: 1570432943_2019_10_07_12.0.3_gitlab_backup.tar ... done
Uploading backup archive to remote storage  ... skipped
Deleting tmp directories ... done
done
done
done
done
done
done
done
Deleting old backups ... skipping
Warning: Your gitlab.rb and gitlab-secrets.json files contain sensitive data
and are not included in this backup. You will need these files to restore a backup.
Please back them up manually.
Backup task is done.
有些需要手動備份的檔案

root@ubuntu:/var/opt/gitlab/backups# pwd
/var/opt/gitlab/backups

root@ubuntu:/var/opt/gitlab/backups# ls -al
total 20964304
drwx------  2 git  root        4096 Oct  7 15:24 .
drwxr-xr-x 21 root root        4096 Jul 31 15:14 ..
-rw-------  1 git  git  21467432960 Oct  7 15:24 1570432943_2019_10_07_12.0.3_gitlab_backup.tar
備份檔在此

\\192.168.88.16\GitlabBackup
User:backup
Password:R@Sns6
/mnt/nas/GitlabBackupFolder

Edit /etc/gitlab/gitlab.rb
1.gitlab_rails[`backup_path`] 的內容修改成 /mnt/nas/GitlabBackupFolder

/mnt/nas/GitlabBackupFolder/gitlab_backup

2. 仔細看裡面的設定，還可以設定備份的區間，太舊的會自動幫忙刪除。

執行以下指令，讓修改生效
gitlab-ctl reconfigure
gitlab-ctl restart

=======================================================
將NAS的CIFS sharing folder mount 到ubuntu
MOUNT_POINT=/mnt/nas/GitlabBackupFolder
SHARE_FOLDER=//192.168.88.16/GitlabBackup
DOMAIN=NASsrv01
USERNAME=backup
PASSWORD=****

mount -t cifs $SHARE_FOLDER $MOUNT_POINT -o username="$USERNAME",password="$PASSWORD",domain="$DOMAIN",iocharset=utf8,file_mode=0777,dir_mode=0777,vers=2.0

mount -t cifs //192.168.88.16/GitlabBackup /mnt/nas/GitlabBackupFolder -o username="backup",password="******",domain="NASsrv01",iocharset=utf8,file_mode=0777,dir_mode=0777,vers=2.0

mount -t cifs \\192.168.88.16\GitlabBackup /mnt/nas/GitlabBackupFolder -o username=backup,password="******",domain=NASsrv01,iocharset=utf8,file_mode=0777,dir_mode=0777,guest

// 這裡你也可以不用 guest, 可以使用 gid=xxxx 或 uid=xxxx 來指定給某個群組或個人, guest 只是比較偷懶的作法
// 如果遇到失敗可以檢查一下是否有套件沒裝到，再使用 apt-get install 安裝
// apt-get install nfs-common
// apt-get install cifs-utils

mount.cifs \\192.168.88.16\GitlabBackup GitlabBackupFolder -o username=backup

sudo mount -t cifs //192.168.88.16/GitlabBackup /mnt/nas/GitlabBackupFolder

git-server@ubuntu:/mnt/nas$ sudo mount -t cifs $SHARE_FOLDER $MOUNT_POINT -o username="$USERNAME",password="$PASSWORD",domain="$DOMAIN",iocharset=utf8,file_mode=0777,dir_mode=0777,guest,vers=2.0
git-server@ubuntu:/mnt/nas$ ls
GitlabBackupFolder
git-server@ubuntu:/mnt/nas$ cd GitlabBackupFolder/
git-server@ubuntu:/mnt/nas/GitlabBackupFolder$ ls
'#recycle'   test.txt
git-server@ubuntu:/mnt/nas/GitlabBackupFolder$

https://www.rootop.org/pages/4165.html
ubuntu挂载共享mount error(95): Operation not supported


 gitlab_rails['manage_backup_path'] = true
 gitlab_rails['backup_path'] = "/mnt/nas/GitlabBackupFolder"




Ran chmod 00700  returned 1
Ran chmod 00700  returned 1
chmod 00700 /mnt/nas/GitlabBackupFolder


STDERR: chmod: changing permissions of '': Operation not permitted
=======================================================

Cron Job 排程
sudo crontab -e
## Gitlab Backup
# Launch Gitlab backup service
0 2 * * * /opt/gitlab/bin/gitlab-rake gitlab:backup:create
# Copy Gitlab backup file to remote server
0 3 * * * find /var/opt/gitlab/backups/ -name "*gitlab_backup.tar" -mtime -1 -exec /bin/cp -a {} /mnt/nas/GitlabBackupFolder \;
# Retain backup data on local folder in 3 days
0 4 * * * find /var/opt/gitlab/backups/ -name "*gitlab_backup.tar" -mtime +1 -exec rm -rf {} \;
# Retain backup data on local folder in 7 days
0 5 * * * find /mnt/nas/GitlabBackupFolder/ -name "*gitlab_backup.tar" -mtime +7 -exec rm -rf {} \;
成功
=======================================================
find /var/opt/gitlab/backups/ -name "*gitlab_backup.tar" -mtime +1
find /mnt/nas/GitlabBackupFolder/ -name "*gitlab_backup.tar" -mtime +7 -exec rm -rf {} \;


要還原時主要步驟：
先安裝與之前備份時相同版本的 Gitlab
停止 gitlab 的服務
將要還原的備份檔放到 /var/opt/gitlab/backups/ 位置
下指令指定要還原的 TIME_STAMP 備份檔
啟動 gitlab, Create satellites, Check gitlab ... 完成

https://poychang.github.io/gitlab-backup/
Gitlab 備份筆記

http://mycodetub.logdown.com/posts/260395-gitlab-backup-restore-settings-notes
Gitlab 備份/還原設定筆記

Gitlab備份與恢復、遷移與升級
https://www.itread01.com/content/1527863887.html


mkdir -p /mnt/nas/GitlabBackupFolder2
mount -t nfs 192.168.88.16:/volume1/GitlabBackup2 /mnt/nas/GitlabBackupFolder2
mount:  can't find in /etc/fstab.