I will use ‘mysql_config_editor’ for storing authentication credentials in an encrypted login path file named ‘.mylogin.cnf’. The file location is the ‘~/.mylogin.cnf’ (user home). The file can be read later by MySQL client programs to obtain authentication credentials for connecting to MySQL Server. The unencrypted format of the .mylogin.cnf login path file consists of option…
By default on CentOS 6.x is used 8169 instead of 8168 driver for Ethernet. Network device display (lspci output): [root@static89 ~]# lspci|grep Eth 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 09) Loaded driver: [root@static89 ~]# lsmod|grep 816 r8169 74378 0 From dmesg output: r8169 Gigabit Ethernet driver 2.3LK-NAPI…
If you need all ip prefixes announced by AS number for routing, filtering or info purposes, you can use whois client from Linux with args ‘-i origin -T route’ Example: root@ns:~# whois AS9009 -i origin -T route |grep ‘route:’ route: 128.0.1.0/24 route: 138.99.211.0/24 route: 172.111.129.0/24 route: 172.111.130.0/24 route: 172.111.138.0/24 route: 172.111.140.0/24 route: 172.111.141.0/24 route: 172.111.148.0/24…
What is wrk ? wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design with scalable event notification systems such as epoll and kqueue. An optional LuaJIT script can perform HTTP request generation, response processing, and custom reporting. You can get…
What is fio ? fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user. The typical use of fio is to write a job file matching the I/O load one wants to simulate. How to install fio ? Debian /…