C3 Power Tools are a set of Python scripts that ease the use and maintenance of single and multiple clusters. Of the seven core tools, only two are restricted to root use. The C3 tools stand out from similar cluster tools in that they transparently support multiple clusters as easily as a single cluster. These tools are so flexible that they can also be used on groups of workstations not configured as a cluster.
Loonix is a custom Linux distribution meant for server applications. It comes with only the latest up-to-date programs and applications, all specially configured for optimal performance and ease of use. Programs are neatly organized in structured directories, and strict security rules are in place for sensitive configuration files and other data.
smbaccess is used to restrict access to a Samba server from clients with certain hardware network addresses. However, this mechanism only works if the client and the server are operating in the same subnet with a direct network interconnection or in a switched network environment since the hardware network address is determined from the IP-number using the arp-cache visible in /proc/net/arp under Linux. smbaccess is invoked during the login process. If access according to the access rule is not granted, a non-zero errorlevel is returned as error code and the login process is stopped.
Easypass.pl is a short script that can be used to create secure, easy-to-remember passwords. It requires a dictionary file (which is standard on most Unix machines) and Perl. It features a lot of options that can be used to strengthen the password. The script was the focus of an article in the July 2002 issue ('Tools') of SysAdmin Magazine.
Keepalived for LVS aims to add a strong and robust keepalive facility to the Linux Virtual Server project. This project is written in C with multilayer TCP/IP stack checks. It implements a framework based on three family checks: Layer3, Layer4, and Layer5. This framework gives the daemon the ability of checking a LVS server pool states.When one of the servers in the LVS server pool is down, keepalived informs the Linux kernel via a setsockopt call to remove this server entry from the LVS topology. In addition, it implements a VRRPv2 stack to handle director failover.
Dixie DNS & DHCP Config Tool is a Web interface written in PHP for configuring and administering ISC bind and dhcp. It maintains a database with general DNS and DHCP information, and information about subnets and hosts. It produces config files, or sends dynamic DNS updates if DDNS is used on the server. It has simple DNS and DHCP live browsers, and can produce subzone files for MS Active Directory.
queue-admin is a bash2 shell script for managing the mail queue of the qmail MTA. It can provide a summarized list of the messages in the queue, optionally filtered by number or by whether a message is local or remote. The messages themselves can be listed, viewed, or deleted by the same criteria. It can also search for expressions within the messages, and can return the entire email or only the line where the expression was found. The output is colorized.
@1 Helpdesk XP Perl is a very powerful Web-based helpdesk system. It supports file attachments, hidden remarks, priority marking, etc. Unlike other similar products, this script does not use the conventional "assign/completed" method to close past tickets. Instead, it uses an intelligent method to sort/rank inquiry tickets. You can even tell whether your replies have been read by the visitors.