A patch is a collection of files and directories that may replace or update existing files and directories. There are some recommendations given by SUN to guide you by taking the decition if you should install a patch or not:
* Do the minimal changes as possible.
* Use the Sun Alert notifications (They are [...]

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This is a how-to install patches but with an condiment, we are going to download the patches with wget, this permits you to create all sort of automated tools to maintain your systems in every imaginable way.
First, lets patch our kernel, this is not so easy because there are many dependencies, but our work is [...]

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The wonderfull tool from Linux called wget from which i have described some usage here and here can also be used in Solaris, here are just the steps *for lazy people, you just need to cut & paste as root*.

ftp -i -n -v ftp.sunfreeware.com << EOF
user “anonymous” “mypass@hotmail.com”
cd pub/freeware/i386/10
bin
mget wget-1.11.4-sol10-x86-local.gz
mget libintl-3.4.0-sol10-x86-local.gz
mget openssl-0.9.8h-sol10-x86-local.gz
mget libiconv-1.11-sol10-x86-local.gz
mget [...]

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To automate an FTP connection without human intervention, used in cron scripts for example:

ftp -i -n -v ftp.kernel.org << EOF
user “anonymous” “mypass@hotmail.com”
cd /kernel
bin
mget *
bye
EOF

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Sun OpenSolaris supports currently 2249 systems. Sun has an updated list of all the supported hardware. The Hardware Compatibility List shows systems and peripherals which are compatible with the Solaris OS. There are 1064 systems [...]

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crontab: you are not authorized to use cron.  Sorry.
This message is self explanatory, if you tried to do:
crontab -e walter
Then you should give him permissions:
sudo -u root echo “walter” >> /etc/cron.d/cron.allow

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Here is a nice list of perl book available in Internet, they are open to public and can be read without paying, this is a nice initiative to give people with less acquisition power the possiblity to learn a language that with some effort can give you the possibility to know people and work together [...]

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Many administrative tasks require to connect to an ssh server without being asked for a password, this can be accomplished with the following step by step instructions:
1) In the client machine create the keys:
ssh-keygen -b 1024 -t rsa
cd ~/.ssh
2) Copy the id_pub.rsa key to the Server machine:
scp id_rsa.pub server:~/.ssh
3) Login into the Server and add [...]

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Every user account in any unix system needs a unique username and a user identifier, known as UID. Every username has a home directory and a login shell. A username could also be member of a group and have a role.
The components of a unix user account are:
Unique username.
Password.
User Identifier (UID), it is [...]

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In Software Engineering the Client-Server model is applied in the distribution of work in a computer network. The Server is composed by software and hardware, its function is mostly to wait for work proccess requested by the client; and the clients role is to send requests to the Server, mostly through a computer network. [...]

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