aneuryzm's questions

If I run

sudo pico /var/log/lighttpd/website/error.log

I get a very long file, and I cannot see last lines. If I run:

sudo tail -f /var/log/lighttpd/website/error.log | awk '{print $1 "--"  $2}'

I don't get anything ? What am I doing wrong ?

Also, how can I move to a specific line using pico editor ?

thanks

I've some issues with my webserver's Apache and lighttpd on Ubuntu 9.04.

I use lighttpd only and I've stopped Apache on Ubuntu. For some reason, starting a few days ago, Apache starts to run and I need to stop it in order to restart lighttpd.

Cron has nothing about this. And this issue started to exist just last week. What could be the reason?

How can I disable Apache?

how can I see the emails sent by my web server ?

They are actually sent through a php script. Is there a way to keep track of them ?

thanks

ps. I'm using Ubuntu 10 (and 9) and Lighttpd

I've just found these accesses in my web server log files:

::ffff:218.38.136.38 109.72.95.175 - [10/Jan/2011:02:54:12 +0100] "GET /user/soapCaller.bs HTTP/1.1" 404 345 "-" "Morfeus Fucking Scanner"
::ffff:218.38.136.38 109.72.95.174 - [10/Jan/2011:02:54:12 +0100] "GET /user/soapCaller.bs HTTP/1.1" 404 345 "-" "Morfeus Fucking Scanner"

Should I start to worry ? Or is it just a normal attempt to hack my server ? thanks

Is reasonably safe to use rsync (without --delete option) to make my daily backups and keep only 1 copy on the backup server (instead of having multiple copies with rotations) ?

If I don't enable the --delete option, any backup file won't be ever deleted, correct ?

thanks

A simple question about rsnapshot.

In order to perform daily backups I'm going to add lines to cron in my Ubuntu.

Then, why do I have also these lines in the rsnapshot.conf ?

#########################################
#           BACKUP INTERVALS            #
# Must be unique and in ascending order #
# i.e. hourly, daily, weekly, etc.      #
#########################################

interval        hourly  6
interval        daily   7
interval        weekly  4
#interval       monthly 3

If I use cron, should I disable them ? thanks

ps. I've just realized that in the crontab I still have "hourly" and "daily". Should I then uncomment only the one I use in the crontab ? And what's the point to specify hourly if it is already specified in cron ? I'm a bit confused.

# crontab -e
0 */4 * * * /usr/local/bin/rsnapshot hourly
30 23 * * * /usr/local/bin/rsnapshot daily

I'm using for the first time rsync to create daily backups of my websites and I was wondering if I should overwrite the previous copy or should I create multiple copies and overwrite only the oldest one ? (I might not have enough space for that, though).

I actually have also this question. Let's suppose most of files are accidentally erases.. does rsync delete all these files from the backup space because they don't exist anymore ? How does exactly work in this case ?

thanks

I want to automate the backup of my databases and files with cron. Should I add the following lines to crontab ?

mysqldump -u root -pPASSWORD database_name | gzip > /home/backup/database_`date +\%m-\%d-\%Y`.sql.gz

svn commit -m "Committing the working copy containing the database dump"

1. First of all, is this a good approach?

2. It is not clear how to specify the repository and the working copy with svn?

3. How can I run svn only when the mysqldump is done and not before ? Avoiding conflicts

How can I test the security of my server ?

Please I know it is too general question. But I was wondering if there is a tester software or web service checking all ports of your server, or possibly security holes ?

I usually check unix permissions and that's it, but there is something I can do ?

ps. Users cannot upload files with my web applications, so I don't have that issue.

In lighttpd.conf usually comment 1 line with #

How was wondering how to comment multiple lines without adding # in front of each line.

thanks

Is there a way in Unix to see the biggest directories on disk ?

I need to know why I'm almost done with the space on the server, and I dunno where most of the space is used..

thanks

I've just generated a SSL certificate with go daddy and I've downloaded the files:

mydomain.com.crt gd_bundle.crt

I'm now going to combine them but it is not clear what's the 2nd certificate is.

Thanks

Can I set multiple SSL certificates for virtual hosts using Lighttpd web server?

I have several webshops on my server (each webshop has its own domain) and I need to setup a SSL certificate for each of them.

thanks Patrick

What is the difference between the following

sudo /etc/init.d/lighttpd restart

and

/etc/init.d/lighttpd force-reload

?

I have a question about Apache MPM Prefork configuration on VPS servers.

One slicehost articles, they suggest to set MaxClients to 40 if I have 256MB RAM on my virtual server. (http://articles.slicehost.com/2010/5/20/configuring-the-apache-mpm-on-debian)

However since each client request uses approx 50MB RAM memory, swapping is guaranteed and my VPS slows down.

  PID   RSS COMMAND
10146 45944 /usr/sbin/apache2 -k start
10147 52528 /usr/sbin/apache2 -k start
10150 49680 /usr/sbin/apache2 -k start
10151 48756 /usr/sbin/apache2 -k start

I've found out that if I set MaxClients to 4 (!) instead, I don't get any swapping, and the webserver is supposed to be faster (or am I wrong?)

So, I don't understand why they do suggest 40 instead.

thanks

The suggested MPM prefork configuration on slicehost.com articles for VPS with 1GB RAM is:

<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>

I know it depends on many factors (which ones exactly ?) but I would like to know how these settings should be for 256M and 512M RAM. Please, provide me configuration examples (as in the table above).

I'm mainly using the VPS for Drupal-based website for local business.

thanks

When I connect to my VPS through terminal and I want see the previous commands I get:

$ ^[[A^[[A

(by pressing up arrow)

What is wrong with it ? How can I see unix previous commands instead ?

thanks

I'm using Ubuntu Server 9.04 and I've installed Apache2 on it.

I want to restart my Apache gracefully but I only can restarting it using this command:

/etc/init.d/apache2 restart

And if I'm not wrong it doesn't have graceful option parameter.

I don't have this command installed:

apachectl

thanks

Update

sudo /etc/init.d/apache2 graceful
 * Usage: /etc/init.d/apache2 {start|stop|restart|reload|force-reload|start-htcacheclean|stop-htcacheclean|status}

I've been given a new domain www.mywebsite.com and I want to point it to a specific directory on my server: var/www/specific/path

What are the steps for doing it ? Could you suggest me a tutorial ?

I need to repeat the same operations for several domains.

thanks

Update:

NameVirtualHost a.b.c.d //I've hidden my real ip

<VirtualHost www.website.com:80>
    DocumentRoot /var/www/sites/website
    ServerName www.website.com
    CustomLog /var/log/apache2/website.com.access combined
</VirtualHost>

I have several website stored on a server.

If I want to upgrade my apache configuration I want to inform all my customers that there will be an upgrade in 30 minutes.

I can modify each website to show this message but I was wondering, how can I make it automatic ? What's the professional way to do it ?

Also, when Apache is restarting or upgrading, there will be no "Maintenance page". How can I instead show for each website a default page "under upgrade" if apache is down ? Do I need 2 servers ?