Debian Edu LTSP-Server packages

debootstrap 用于从零开始创建一个 Debian 基本系统，且不需要使用 dpkg 或 apt。它从镜像站点中下载 .deb 文件，小心地将其解压缩并放入最终用于 chroot 的 指定目录中。

A metapackage containing dependencies for packages required on all networked workstation installations in the Debian Edu Blend.

The iptables/xtables framework has been replaced by nftables. You should consider migrating now.

iptables is the userspace command line program used to configure the Linux packet filtering and NAT ruleset. It is targeted towards systems and networks administrators.

This package contains several different utilities, the most important ones:

iptables-nft, iptables-nft-save, iptables-nft-restore (nft-based version)

iptables-legacy, iptables-legacy-save, iptables-legacy-restore (legacy version)

ip6tables-nft, ip6tables-nft-save, ip6tables-nft-restore (nft-based version)

ip6tables-legacy, ip6tables-legacy-save, ip6tables-legacy-restore (legacy version)

arptables-nft, arptables-nft-save, arptables-nft-restore (nft-based version)

ebtables-nft, ebtables-nft-save, ebtables-nft-restore (nft-based version)

iPXE is network boot firmware. It supports a variety of network cards, including some wireless cards, and variety of network protocols (traditional DHCP, BOOTP and TFTP and also HTTP, iSCSI, SAN via FCoE and Infiniband). It supports scripting.

It is possible to use iPXE as a PXE ROM in the network card or to chainload it from other boot methods.

This package provides boot code for all supported network cards in one binary and several bootable formats.

This is the server from the Internet Software Consortium's implementation of DHCP.

Dynamic Host Configuration Protocol (DHCP) is a protocol like BOOTP (actually dhcpd includes much of the functionality of bootpd). It gives client machines "leases" for IP addresses and can automatically set their network configuration.

This is the DHCP server with LDAP patches applied to it.

Make an installation able to netboot as an LTSP client. For LTSP servers, also install the suggested packages (dnsmasq etc).

LTSP helps in netbooting LAN clients from a single installation that resides in a chroot or a VM on the LTSP server. This way maintaining tens or hundreds of clients is as easy as maintaining a single PC.

Plugins for nagios compatible monitoring systems like Naemon and Icinga. It contains the following plugins:

 check_breeze, check_dbi, check_dig, check_disk_smb, check_dns,
 check_flexlm, check_fping, check_game, check_hpjd, check_ifoperstatus,
 check_ifstatus, check_ldap, check_ldaps, check_mailq, check_mysql,
 check_mysql_query, check_oracle, check_pgsql, check_radius, check_rpc,
 check_snmp, check_wave

This package provides the suite of plugins that are most likely to be useful on a central monitoring host. Some scripts need more packages installed to work, which is implemented as recommends.

Nagios is a host/service/network monitoring and management system.

The purpose of this addon is to allow you to execute Nagios plugins on a remote host in as transparent a manner as possible.

This program runs as a background process on the remote host and processes command execution requests from the check_nrpe plugin on the Nagios host.

This package includes the important tools for controlling the network subsystem of the Linux kernel. This includes arp, ifconfig, netstat, rarp, nameif and route. Additionally, this package contains utilities relating to particular network hardware types (plipconfig, slattach, mii-tool) and advanced aspects of IP configuration (iptunnel, ipmaddr).

In the upstream package 'hostname' and friends are included. Those are not installed by this package, since there is a special "hostname*.deb".

The NFS kernel server is currently the recommended NFS server for use with Linux, featuring features such as NFSv3 and NFSv4, Kerberos support via GSS, and much more. It is also significantly faster and usually more reliable than the user-space NFS servers (from the unfs3 and nfs-user-server packages). However, it is more difficult to debug than the user-space servers, and has a slightly different feature set.

This package contains the user-space support needed to use the NFS kernel server. Most administrators wishing to set up an NFS server would want to install this package.

rdiff-backup backs up one directory to another, possibly over a network. The target directory ends up a copy of the source directory, but extra reverse diffs are stored in a special subdirectory of that target directory, so you can still recover files lost some time ago. The idea is to combine the best features of a mirror and an incremental backup. rdiff-backup also preserves subdirectories, hard links, dev files, permissions, uid/gid ownership, modification times, extended attributes, acls, and resource forks.

Also, rdiff-backup can operate in a bandwidth efficient manner over a pipe, like rsync. Thus you can use rdiff-backup and ssh to securely back a hard drive up to a remote location, and only the differences will be transmitted. Finally, rdiff-backup is easy to use and settings have sensible defaults.

Squashfs is a highly compressed read-only filesystem for Linux. It uses zlib compression to compress both files, inodes and directories. Inodes in the system are very small and all blocks are packed to minimise data overhead. Block sizes greater than 4K are supported up to a maximum of 64K.

Squashfs is intended for general read-only filesystem use, for archival use (i.e. in cases where a .tar.gz file may be used), and in constrained block device/memory systems (e.g. embedded systems) where low overhead is needed.

Trivial File Transfer Protocol (TFTP) is a file transfer protocol, mainly to serve boot images over the network to other machines (PXE).

tftp-hpa is an enhanced version of the BSD TFTP client and server. It possesses a number of bugfixes and enhancements over the original.

This package contains the server.

VNC stands for Virtual Network Computing. It is, in essence, a remote display system which allows you to view a computing `desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.

This package provides a server to which X clients can connect and the server generates a display that can be viewed with a vncviewer.

The difference between the tightvncserver and the normal vncserver is the data encoding, optimized for low bandwidth connections. If the client do not support jpeg or zlib encoding it can use the default one. Later versions of vncserver (> 3.3.3r2) support a new automatic encoding that should be equally good as the tightvnc encoding.

Note: This server does not support or need a display. You need a vncviewer to see something. However, this viewer may also be on a computer running other operating systems in the local net.

X2Go is a server based computing environment with

• session resuming
• low bandwidth support
• session brokerage support
• client-side mass storage mounting support
• client-side printing support
• audio support
• authentication by smartcard and USB stick

This package contains the main daemon and tools for X2Go server-side session administrations.

xrdp offers a graphical login to a remote client using RDP (the Remote Desktop Protocol). xrdp can connect to a locally created X.org session with the xorgxrdp drivers, to a VNC X11 server, and forward to another RDP server.

xrdp accepts connections from freerdp, rdesktop, and the built-in terminal server / remote desktop clients of Microsoft Windows operating systems. In the xorgxrdp (which replaces X11RDP) and VNC modes, it provides a fully functional Linux terminal server, offering an X-Window desktop to the user. In the RDP or VNC forwarding mode, any sort of desktop can be used.