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Trust - Microsoft Security Response Center has developed a list of 10 laws unchanged Security. Law # 6 states that "The computer is as secure as the administrator reliable." Therein lies the crux of the matter ... if you have a reliable system administrator, you have absolutely no security. If you hire an administrator can check their references thoroughly, not a full background check, background checks regularly and that individual circumstances may change. It goes without saying that if you do not trust the system administrator will change. If this is the case, be sure to follow the tips below 6.
Responsibility - You have to login and sign registration documents in the server room. If possible, leave the network, so administrators do not have the power. Also, when upgrading or installing the software to assign two people to the task.
Acquisition of equipment and software revision - Buy. Just because you have no idea what is the perimeter intrusion detection tool is based does not mean it can be assumed that it is the CFO, ensure that you have installed. The reason is that the risk is that the administrator can control the hardware or software and sell on eBay without anyone knowing.
Kill the administrator password - Windows operating systems to install the so-called root user and the corresponding password for the account that everyone is super user-level access to the system. Assuming you already have a relationship with super user access (language in Windows, administrative access to Active Directory), so useless password administrator account unknown. This forces the associated administrative access to each connection (ie the users), as opposed to all share the administrator account. If necessary, you can remove this access for the user deletes an account.
File Encryption - Keep in mind that the "salary" file that I said? Just save the file with a password, which happens also to encrypt the file, and share the password only you need to know.
Dismissal - Be prepared when you cook a network administrator, especially if you have one (see Tip 7). Accompany them to the door right away, do not let them have access to the network and disable the connection.
System passwords - At least three people of high rank in the organization need a separate access to the super user level access daily. We also need to know all the router password, firewall, online services, phone system, etc. Passwords should be tested at random times during the year. These passwords should be kept in a safe place, not on the network.
Documentation Network - Networks incredibly complicated, and router connections in offices and the Internet, backup systems, sub-IP networks, the policy of the firewall and telephony systems complex, so much so that even the best network engineer could spend days relaxing and the understanding of the network without documentation. If the administrator is not available in the crisis of the system; Password system and network documentation will save the day.
Email privacy - If you need to calmly e-mail, consider using an Internet e-mail service like Gmail or MSN. Keep in mind that this e-mail can be "sniffed" and there may be legal reasons to bypass the internal messaging system.
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