Note: This is a slighltly modified reprint from http://www.akadia.com
Overview The following is an extremely simplified view of how SSL is implemented and what part the certificate plays in the entire process.
Normal web traffic is sent unencrypted over the Internet. That is, anyone with access to the right tools can snoop all of that traffic. Obviously, this can lead to problems, especially where security and privacy is necessary, such as in credit card data and bank transactions.
Simple:
Create following file Change the MAXSIZE & LOGDIR (see file) Add a cron job Create following file:
nano /var/www/log/logrotate.sh #!/bin/bash MAXSIZE=1024 LOGDIR=/var/www/log/ if [[ $EUID -ne 0 ]]; then echo "This script must be run as root" 1>&2 exit 1 fi cd $LOGDIR for FILENAME in *.log; do SIZE=$(du -b $FILENAME | cut -f 1) if(($SIZE>$MAXSIZE)); then TIMESTAMP=`date +%Y%m%d` NEWFILENAME=$FILENAME.$TIMESTAMP mv $FILENAME $NEWFILENAME touch $FILENAME chown www-data.
If you ever work on a remote servers network settings then this script may safe you from having to call support, and waiting on them.
When started/executed it
Sleeps first for 1 hour Then it renames the ”/etc/network/interfaces” file by adding the current time stamp to the end of the file It renames a file called ”/etc/network/interfaces.org” to ”/etc/network/interfaces” And finally it restarts the server. It also warns you a couple minutes before it does all that so you can terminate the program.
Have you ever executed something on the linux shell and didn’t remember later how it was done?
Well if you remember just part of it you can search for it:
history | grep -i "[search string]"
Why have more then one mail server? Or why even have a mail server at all, if you can use gmail? Well there are many reasons to have at leased one mail server, but having one on each server doesn’t make sense at all. I tried both ssmtp and msmtp, and decided on msmtp.
msmtp is an SMTP client. In the default mode, it transmits a mail to an SMTP server, which takes care of further delivery.
This little code, if placed in to your ~/.bash_profile file will reveal what git branch you are working on.
parse_git_branch() {
git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* (.*)/(1)/'
}
if [[ $EUID -ne 0 ]]; then
PS1="w$(parse_git_branch) $ "
fi
Running as background process with nohub
nohup scp & > nohup.out 2 > &1 nohup scp -r -p root@www.example.com:/var/www/ /var/www/ & >nohup.out 2>&1 nohup scp -r -p root@www.example.com:/var/www/logs /var/www/ & >nohup.out 2>&1
Find and chmod files or folders
find . -type d -exec chmod 755 {} ;
find . -name "*.php" | xargs grep -niP 'thingy'
Find a directory and display on screen
find . -type d -name 'linux' 2>/dev/null
Find/Grep for a string across multiple files with different extensions
find ( -name "*js" -o -name "*jsp" -o -name "*jspf" ) | xargs grep -niP 'thingy'
I been using Netbeans and following solved the problem:
manticore:/etc/sysctl.d# telnet ::ffff:192.168.1.1
Trying ::ffff:192.168.1.1...
telnet: Unable to connect to remote host: Network is unreachable
manticore:/etc/sysctl.d# sysctl net.ipv6.bindv6only
net.ipv6.bindv6only = 1
manticore:/etc/sysctl.d# sysctl net.ipv6.bindv6only=0
net.ipv6.bindv6only = 0
manticore:/etc/sysctl.d# telnet ::ffff:192.168.1.1
Trying ::ffff:192.168.1.1...
Connected to ::ffff:192.168.1.1.
Escape character is '^]'.
