yum install gcc pcre-devel openssl-devel
wget http://nginx.org/download/nginx-0.7.65.tar.gz && tar xvfz nginx-0.7.65.tar.gz
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_gzip_static_module
make
make install
ln -s /usr/local/nginx/conf /etc/nginx
ln -s /usr/local/nginx/logs /var/log/nginx
ln -s /usr/local/nginx/sbin/nginx /usr/sbin/nginx

Then grab this init script for red hat from http://wiki.nginx.org/RedHatNginxInitScript and put it in /etc/init.d/nginx file. Chmod 755 the file and you are ready.

Nov 10 18:27:01 server kernel: type=1105 audit(1257874021.909:87975): user pid=27986 uid=0 auid=0 msg=’PAM: session open acct=”root” : exe=”/usr/sbin/crond” (hostname=?, addr=?, terminal=cron res=success)’
Nov 10 18:27:02 server kernel: type=1104 audit(1257874022.828:87976): user pid=27986 uid=0 auid=0 msg=’PAM: setcred acct=”root” : exe=”/usr/sbin/crond” (hostname=?, addr=?, terminal=cron res=success)’

into /var/log/messages log, filling it up with garbage.

After some time spent investigating I  fixed it. I edited /etc/audit/audit.rules  and replaced line

-D

with this line

-e 0

After that I started auditd service, stopped it and no more logs in /var/log/messages

In vi/vim type :set number to show line numbers and :set nonumber to hide line numbers.

Not seeing hidden linux files ( dot beginning files) in your ftp you can enable this option in your ftp client. (show linux hidden files). It it does not work you can force your linux ftp server to show them via this command in /etc/proftpd.conf

ListOptions -a

Put it into the conf file and restart proftpd service.

Now it just annoyed me because I could not find few syntax errors on one server and here is the solution.

Open up some file in vi or vim and hit ESC, then type “:syntax on”  and the magic happens… let there be color

If you do like it without color, type “:syntax off”

put this in your apache config:

<IfModule mod_deflate.c>
# compress html, plain text, css and javascript
AddOutputFilterByType DEFLATE text/html text/plain text/css text/javascript application/x-javascript
# avoid problems in known-to-be-problematic browsers
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
</IfModule>

<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault A300
ExpiresByType image/x-icon A2592000
ExpiresByType application/x-javascript A3600
ExpiresByType text/css A3600
ExpiresByType image/gif A604800
ExpiresByType image/png A604800
ExpiresByType image/jpeg A604800
ExpiresByType text/plain A300
ExpiresByType application/x-shockwave-flash A604800
ExpiresByType video/x-flv A2592000
ExpiresByType application/pdf A300
ExpiresByType text/html A300
</IfModule>

Times are in seconds. There are many variations how to set the time, read apache manual for further info.

Hope it helps to speed up your sites and save some bandwidth.

However, there are two principles – one to send the email to /dev/null and other one disable it by cron EMAILTO directive.

Redirect to /dev/null is used in these ways:

>/dev/null 2>&1.
or
&> /dev/null

Those need to be added at the end of your crontab entry, like this:

0 1 * * * /path/yourscript.sh >/dev/null 2>&1

Or, as I said using EMAILTO would look in your crontab file like this:

EMAILTO=""

It should be placed on top of either /etc/crontab or you can define cron entries by executing: crontab -e

I hope this was helpfull…

Here are the features that I receive from this little script:

SendmailStats reports:

• Time/date of log beginning and end
• Total bytes transferred and total MB transferred
• Total bytes in and total MB in (locally delivered)
• Number of messages sent out
• Number of messages coming in
• Messages per hour graph
• Top 20 remote sending hosts
• Total number of sending hosts and number of their attempted messages
• Top 20 destination hosts
• Total number of destination hosts and number of messages sent to them
• Top 20 local deliveries
• Total number of local accounts that received mail
• Total number of messages delivered locally
• Top 20 senders
• Total number of senders and total number of messages sent

These are the steps that need to be done to make it work:

wget http://www.reedmedia.net/software/sendmail_stats/sendmail_stats-0.9.txt
mv sendmail_stats-0.9.txt /root/sendmailstats
chmod 755 /root/sendmailstats
vi /root/sendmailstats

edit dit the “$default_hostname = ‘EDIT-THIS-default-domain.net’;” line matching your hostname

vi /etc/cron.daily/smailstats

into the file paste this line:

/root/sendmailstats < /var/log/maillog | less | mail -s “sendmail stats” root

Save the file & close it.

chmod 755 /etc/cron.daily/smailstats

And you are finished. The script will run every day when is your daily cron set and you receive email with the stats.

Die spam!

 All you need to do is edit the config file which should be /etc/proftpd/proftpd.conf  and place this line within <global> section:

 IdentLookups Off

 That should remove the delay and your ftp connection will be initialized very quickly.

To set correct time issue this command

/usr/bin/rdate -s time.nist.gov

It will connect to time server and synchs your time and date. After that command execute

/sbin/hwclock --systohc

which sets ‘permanent’ clock from the system time so that the time will be correct next time you reboot.

You can do this via a NTP daemon but it is too complicated for such an easy task as setting the date and time.