#Add this script to the DocRoot and browse to it. The session_id shouldn’t change if it is preserving sessions
< ?php
// DONT FORGET TO CHECK FOR VARNISH RUINING EVERYTHING
ini_set( ‘display_errors’, 1);
session_start();
echo ‘HOSTNAME: ‘ . gethostname() . ‘ ‘;
echo ‘SESSION: ‘ . session_id() . ‘ ‘;
if (isset($_SESSION[‘counter’])) {
$_SESSION[‘counter’]++;
} else {
$_SESSION[‘counter’] = 1;
}
echo ‘
DUMP SESSION:
‘;
echo ‘
'; print_r($_SESSION); echo '
‘;
phpinfo();
?>
Use the -i option to specify a new key
ssh -i newkey root@108.166.84.188
How to strip a passphrase from an openssl key
cp filename.key filename.key.encrypted
openssl rsa -in filename.key -out filename.key.nopass
cp filename.key.nopass filename.key
How to add or change a passphrase to an openssl key
If you created an openssl key without a password or if you need to change the password:
ssh-keygen -p -f ~/.ssh/id_rsa
———————————————————————————————–
Starting the SSH Agent
There are two ways to start the ssh-agent. Either will do the trick.
Start the ssh-agent using backquotes to pass information about the agent back to the shell.
`eval ssh-agent` runs an ssh-agent by forking a process off your current
login shell. It outputs some commands to set environment variables:
SSH_AUTH_SOCK or SSH2_AUTH_SOCK and SSH_AGENT_PID or SSH2_AGENT_PID. The eval part causes the shell to interpret the commands output by
ssh-agent, thereby setting the environment variables. (If you leave off
the eval, you’ll see the output.) The problem is that, because it got
forked, it is inaccessible to the shell and keeps running until killed
manually. And even then the environment variables remain set until you
unset them.
Start the ssh-agent and spawn a subshell.
ssh-agent bash
(ssh-agent /bin/sh, ssh-agent /bin/csh, ssh-agent $SHELL, ssh-agent
my-shell-script all work too btw)
With this method, the ssh-agent process runs in the foreground, spawning
a subshell and setting the environment variables up automatically. The
rest of the login session runs in the subshell. When the shell is killed
the cleanup is done automatically. Of course, any background processes
run before initiating the ssh-agent in this way are not accessible from
within the subshell.
1) Add root’s identity
ssh-agent bash
(ssh-agent /bin/sh, ssh-agent /bin/csh, ssh-agent $SHELL, ssh-agent
my-shell-script all work too btw)
2) Add the ssh key to the agent
ssh-add ~/.ssh/id_root_dsa
3) Log onto a machine setup to use ssh-keys
ssh -2 -A root@$MACHINENAME
Copying data from one machine to a tape drive on another.
1) Add root’s identity
ssh-agent bash
(ssh-agent /bin/sh, ssh-agent /bin/csh, ssh-agent $SHELL, ssh-agent
my-shell-script all work too btw)
2) Add the ssh key to the agent
ssh-add ~/.ssh/id_root_dsa
3) Pipe the output of tar to a machine setup to use ssh-keys
tar zcvf – /scratch/vickistan/cl-pdk/ |ssh -A root@$MACHINENAME “cat > /dev/nst2″
to change the password, use this command:
which changepassword.pl
/usr/libexec/webmin/changepass.pl /etc/webmin root PASSWORD
http://www.webmin.com/faq.html
/Users/vick4522 ==> traceroute vickistan.com
traceroute to vickistan.com (108.166.91.129), 64 hops max, 52 byte packets
1 72.32.115.226 (72.32.115.226) 172.771 ms 83.839 ms 89.278 ms
2 67.192.56.50 (67.192.56.50) 95.320 ms 95.043 ms 92.113 ms
3 coreb.dfw1.rackspace.net (74.205.108.26) 94.737 ms
corea.dfw1.rackspace.net (74.205.108.10) 109.197 ms
coreb.dfw1.rackspace.net (74.205.108.26) 116.713 ms
4 core3.dfw1.rackspace.net (74.205.108.7) 117.443 ms
core3.dfw1.rackspace.net (74.205.108.23) 121.774 ms
core3.dfw1.rackspace.net (74.205.108.7) 134.359 ms
5 108-166-91-129.static.cloud-ips.com (108.166.91.129) 136.568 ms !Z 141.209 ms !Z 149.034 ms !Z
Since Linux uses UDP for trace-routes, this can originate from a –reject-with icmp-host-prohibited rule in the destination host’s firewall. Some Linux distros have this as a default configuration. To fix this you need to reply with –reject-with icmp-port-unreachable on UDP ports 33434 through 33534 instead.
If a packet is not acknowledged within the expected timeout, an asterisk is displayed.
http://www.percona.com/software/percona-xtradb-cluster
Using curl to GET a page
The simplest and most common request/operation made using HTTP is to get a
URL. The URL could itself refer to a web page, an image or a file. The client
issues a GET request to the server and receives the document it asked for.
If you issue the command line
curl http://vickistan.com
you get a web page returned in your terminal window. The entire HTML document
that that URL holds.
curl -w %{time_total},%{size_download}\\n -o /dev/null http://vickistan.com
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 25969 100 25969 0 0 14135 0 0:00:01 0:00:01 –:–:– 25509
1.837,25969
curl –form upload=@testfile –form press=OK https://vickistan.com/wp-admin/post-new.php
If you need to pass credentials:
curl -u username:password http://URL
http://curl.haxx.se/docs/httpscripting.html
Edit the php file “wp-db.php” (in the “wp-include/” folder of your WordPress installation) and add
$this->query(“set session wait_timeout=600”);
somewhere in the function “___construct” after the $this->dbhost = $dbhost; and before the $this->dv_connect()
statement.
Reference this link if you need more:
http://dev.mysql.com/doc/refman/5.0/en/gone-away.html
In order to deliver some accounts locally, you can set up virtual aliases as follows:
1. Add the following line to /etc/postfix/main.cf:
virtual_alias_maps = hash:/etc/postfix/virtual
mail_spool_directory=/var/spool/mail
2. Create /etc/postfix/virtual as follows:
root root@localhost
3. postmap /etc/postfix/virtual
4. Restart postfix
Note: Make sure that /etc/aliases doesn’t have root’s mail being redirected
openssl rsa -noout -modulus -in server.key | openssl md5
openssl x509 -noout -modulus -in server.crt | openssl md5