Run this command in windows host 2024/11/19

if you meet this problem: fatal: the remote end hung up unexpectedly Do this: 2024/10/31

2024/08/08

I need a super clean apache and forward all PHP requests to a independent php-cgi process which host by a specific port 1. Install Apache Mac In ubuntu, no need to build apache from source, just “sudo apt-get install apache2” Linux 2. Install PHP Mac Linux if you meet this error “configure: error: re2c 1.0.3 […] 2024/03/30

2024/03/03

Support you have generate a standalone cert using certbot command, and your cert is in /etc/letsencrypt/live/ . If not, follow this https://www.digitalocean.com/community/tutorials/how-to-use-certbot-standalone-mode-to-retrieve-let-s-encrypt-ssl-certificates-on-ubuntu-16-04 Execute openssl command and remember your password Edit tomcat’s conf/server.xml, you just need one connector to serve 8443, no need other conntector Restart your tomcat, it is done. Below is the virtualhost to […] 2019/11/23

for ((x=0;x<=255;x++)); do a=`echo “obase=16; $x”|bc`;echo -n -e “\x$a”; done 2019/09/08

2019/01/27

係Godaddy起左隻最Cheap VPS, $160蚊個月, 得一粒vcore同1GB Ram, 行ubuntu + mysql + apache + wordpress. 正常黎講要兩三個星期restart一次mysql因為out of memory. 行wordpres兩年之後response time趑黎越慢, 有成十秒先load到個page. 裝左W3 Total Cache之後快左好多, 一兩秒就load到, 建議大家一定要裝. 2018/11/28

2018/06/05

linux elf dependency graph 2016/05/18

alias csv=’column -s, -t’ csv your_file 2015/06/16

objdump 2.24 has bug, but this bug is fixed in 2.25. It dump the wrong address for my 32 bits kernel. 2015/05/22

2015/03/21

ubuntu 12.04 vnc keymap has trouble, D become minimize all windows and S become start menu, run these to fix it. 2015/03/19

just save this to /etc/init.d/tomcat and link to /etc/rc5.d/S99tomcat 2015/01/21

gsettings set org.gnome.desktop.media-handling automount false …and enable it again: gsettings set org.gnome.desktop.media-handling automount true 2015/01/14

I have two programs, one written in c++, the other is in java. C++ keep sending bytes to java, overtime write out 400KB. Java keep receiving the data using the readBytes function, this function returns an integer which is the number of byte it actually read for the function call. For every send (400kb) in […] 2015/01/08

usb wireless mouse freeze periodically in ubuntu 12.04 lts, edit /boot/grub/grub.cfg, add a boot option irqpoll will fix it 2014/08/24