r servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the form of Live CD or Compact Flash image and you ca... nfigure and administer it using your web browser. The main features of this Linux distribution for Netw... secure authentication and automatic management of the encryption keys to the Wireless 802.11b, 802.11g
rce delivery: attempt to deliver every message in the deferred mail queue. Normally, attempts to deliver delayed mail happen at regular intervals, the interval doubling after each failed attempt. Warn... leted: 1 message
</code>
To remove all mail from the queue, enter:
# postsuper -d ALL
To remove all mails in the deferred queue, enter:
# postsuper -d ALL defer
$local_part}lsearch*@{/etc/aliases}}
</code>
Add the fallback alias in ''/etc/aliases''
For example:
... => Force another queue run and attempt to flush the frozen message
exim4 -Mvl messageID => View the log for the message
exim4 -Mvb messageID => View the body of the message
exim4 -Mvh messageID =>
ord failures. It updates firewall rules to reject the IP address.
* [[/informatique/system_admin/fa... rs module for Apache to provide evasive action in the event of an HTTP DoS or DDoS attack or brute forc... Is, and denying any single IP address from any of the following:
* Requesting the same page more than a few times per second
* Making more than 50
returns a permanent error code to
the client; in contrast, if the disk is full or qmail-
smtpd hits a resource limit, qmail-s... n disk, not as
transmitted through the network. It does not count the
qmail-smtpd Received line, the qmail-queue Received
wiki/clusterssh/
ClusterSSH is a tool for making the same change on multiple servers at the same time. The 'cssh' command opens an administration console and an xterm to all specified hosts. Any text typed into the administration console is replicated to all windo
n used together with an embedded PC, provides all the important features of commercial firewall boxes (including ease of use) at a fraction of the price (free software). m0n0wall is based on a bar... with a web server, PHP and a few other utilities. The entire system configuration is stored in one sing... to keep things transparent. m0n0wall is probably the first UNIX system that has its boot-time configur
cope with burgeoning storage needs. Building upon the popularity of server virtualization technologies ... ures that storage administrators are able to make the best use of system performance and storage capaci... ti-platform environment.
Openfiler addresses all the key data storage concerns:
* Reliability - Ope... ation
* Performance - Linux 2.6 kernel supports the latest CPU, networking and storage hardware
* S
in this file, type "man shorewall-interfaces"
#
# The manpage is also online at
# http://www.shorewall.... n about this file, type "man shorewall-zones"
#
# The manpage is also online at
# http://www.shorewall.... ies in this file, type "man shorewall-policy"
#
# The manpage is also online at
# http://www.shorewall.... CCEPT
net all DROP info
lan all ACCEPT info
# The FOLLOWING POLICY MUST BE LAST
all all REJECT in
ww.wipmania.com/en/tools (ping, traceroute, ...)
The free [[http://www.wipmania.com/en/base/|WorldIP d... of geographic location of an IP address. Download the database and use it on your own computer or serve
