Zimbra 501 5.1.3 Bad recipient address syntax
Trong quá trình chuyển di chuyển mail từ Exchange sang Zimbra, mọi thứ diễn ra rất suôn sẻ, nhưng sau đó mình thấy khách hàng […]
VPS – Server Linux
Debug PCIe Issues using lspci and setpci
Các lệnh lspci và setpci có sẵn trong các bản phân phối Linux. Lệnh này có nhiều mức đầu ra khác nhau và cung cấp một […]
Solve openssh-server: Depends: libwrap0( = 7.6-4~)
I encountered this problem when installing Ubuntu openssh-server: root@ubuntu:~# apt-get install openssh-server Reading package lists… Done Building dependency tree Reading state information… Done Some packages […]
How to fix “iproute conflicts with kernel” issue
The recent version of the iproute package is not supported by some old kernels so it brought a new conflict to updates. The symptoms are […]
codeigniter 404 page not found on live server
codeigniter 404 page not found on live server laravel 404 page not found on live server MVC 404 page not found on live server if […]
iptables round robin
This uses the iptables nth extension. The following example load balances the HTTPS traffic to three different ip-address. For every 3th packet, it is load […]
How to install the Pagespeed Nginx module in Directadmin
Mod_pagespeed is an open-source Apache HTTP Server (or Nginx) module, which automatically applies chosen filters to pages and associated assets such as stylesheets, JavaScript, and HTML […]
IDRAC issue – not responding to HTTP/HTTPS err_connection_refused
I recenlty ran into an issue with a Dell iDRAC — it was not running the web interface, and so I was not able to […]
Installing LSI MegaRaid Storage Manager on Debian
install some prerequisite packages apt install alien Download LSI raid controller from Broadcom wget https://docs.broadcom.com/docs-and-downloads/raid-controllers/raid-controllers-common-files/17.05.00.02_Linux-64_MSM.gz Installing LSI MegaRaid Storage Manager on Debian tar xvf 17.05.00.02_Linux-64_MSM.gz […]
Dumping MySQL Stored Procedures, Functions and Triggers
Mysqldump mặc định sẽ backup toàn bộ triggers nhưng không backup stored procedures/functions. Để backup stored procedures/functions bạn cần add option –routines mysqldump -u <database_user> […]