linux nodes – tsm backup & restore comparaison
you need to dump your tsm backup logs via following command : # dsmc query backup -subdir=yes -filesonly -detail /archives/ > query_backup.log …
Installing and configuring the certificate on the ESXi host
After the certificate is created, complete the installation and configuration of the certificate on the ESXi 6.0 host: When complete, the host …
CentOS7 NAT server
# echo “net.ipv4.ip_forward = 1” >> /etc/sysctl.d/ip_forward.conf # sysctl -w net.ipv4.ip_forward=1 #### em1 is internal. em2 is public. # firewall-cmd –permanent –add-rule …
linux 移除註解指令
# grep -o ‘^[^#]*’ FILENAME
install ssh public key for HP iLO
first, you need to generate a ssh2 public key. and put the public key to your web server. login to your HP …
Passing arguments to an expect script as variables
# cat test.sh #!/usr/bin/expect -f set username [lindex $argv 0] set password [lindex $argv 1] spawn ssh $username@HOST expect “password:” send “$password\r” …
Using expect script to power on IBM blades
#!/usr/bin/expect -f spawn ssh root@bcmm.liho.tw expect “password:” send “PASSWORD\r” expect “system>” send “power -on -T system:blade\[1\]\r” expect “system>” send “power -on -T …
How to Upgrade ESXi 6.0 to 6.5 via CLI
Update your VCSA(vCenter Server Appliance) before your ESXi # esxcli network firewall ruleset set -e true -r httpClient # esxcli software sources …
Linux – 檔案分割
偶爾遇到大檔案需要切割. linux 提供不錯的 split 指令. 可以按照檔案大小切割 也可以按照行數切 下面範例，每 100MB 切割檔案： $ split -b 100M data.ORI data.new 下面範例，每 10 萬行切割檔案 $ split -l …
第一個 Google App Engine 筆記
Google App Engine 有什麼好處呢？當有大流量使用需求的時候很好用，不用自己管理 load balance 的問題。Google會幫你自動開關 instances，使用多少就付多少，頻寬超高的使用 Google App Engine 幾乎沒有什麼延遲。就我個人的觀點，純 app developer 很適合用 Google App Engine。省去自己架設機器部署軟體的麻煩，更不用知道底層系統是怎麼運作的。可以讓開發者專心的開發程式，把產品快速上線，且網頁服務具備scale-in & scale-out的能力。對於有大量的訂單或是搶票系統有需求的真的可以好好考慮使用 App Engine。 …