Denyhost: less password attacks guaranteed 
DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins.

http://sourceforge.net/projects/denyhosts/

http://stats.denyhosts.net/stats.html

install

wget http://downloads.sourceforge.net/projec ... ror=freefr
tar xvfz DenyHosts-2.6.tar.gz
cd DenyHosts-2.6
python setup.py install
cd /usr/share/denyhosts/
cp denyhosts.cfg-dist denyhosts.cfg
cd -
cp /usr/share/denyhosts/daemon-control-dist /usr/share/denyhosts/daemon-control
cd /etc/init.d
ln -s /usr/share/denyhosts/daemon-control denyhosts
chkconfig denyhosts on
service denyhosts start


[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink
Monitoring Adaptec řadiče pomocí Nagiosu 
Stažení StorMana:

# If your architecture is x86 use
http://www.adaptec.com/en-US/speed/raid ... 30_rpm.htm
# If your architecture is x64 use
http://www.adaptec.com/en-US/speed/raid ... 30_rpm.htm


Stažení kompakt lib:

yum install compat-libstdc++-33


Následující dá status:
/usr/StorMan/arcconf GETCONFIG 1

Stažení pluginu pro Nagios a Adaptec (Adaptec RAID Check by Anchor Systems : check-aacraid.py patch):

http://exchange.nagios.org/directory/Plugins/Hardware/Storage-Systems/RAID-Controllers/Adaptec-RAID-Check-by-Anchor-Systems--3A-check%252Daacraid-2Epy-patch/details


--napsat raději vlastní--


[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink
Install fwbuilder on CentOS 
http://techchorus.net/installing-firewa ... os-53-i386

[ add comment ] ( 10 views )   |  [ 0 trackbacks ]   |  permalink
Michael Ruppert 
http://www.mustwatch.cz/film/collapse/

[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink
sedmičkové akordy 
II-V-I dominantní jádro ¨

X /\ = Xmaj = Xj = velká 3, velká 7 (půltón od root), a 5 nebo 6, velká 9
X-7 = Xmin7 = Xm7 = malá 3, malá 7 (celý tón od root), a 5 nebo 6, velká 9
X7 = Xdom7 = velká 3, malá 7 (celý tón od root), a velká 6 nebo velká 9
Xsus7 = X7sus4 = velká 3 zvýšená o púltón, malá 7, velká 6, velká 9

akord se staví od 3 nebo 7 stupně

tritónová subsituce

Chord substitution often results from an attempt to provide smooth voice leading. Using the tritone substitution, the roots of the ii-V-I progression move down by half-steps, instead of ascending 4ths. For example, in the key of C the progression becomes Dm7, Db7, CM rather than Dm7, G7, CM.

http://hum.lss.wisc.edu/jazz/substitutions.html

[ 4 comments ] ( 17 views )   |  [ 0 trackbacks ]   |  permalink
Refresh screen with [ ctrl + l ] when garbled  
for example, when you are at the console in mc, copying files, and some kernel event is put on screen then it helps to get out the mess

[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink
XEN: increasing the number of veth/vif pairs and the number of file loopbacks  
increasing the number of veth/vif pairs, may be ignored by modprobe since 5.3
options netloop nloopbacks=16

increasing the max number of file loopbacks (/dev/loop*)
options loop max_loop=32


the option of /etc/modprobe.conf
# cat /etc/modprobe.conf
alias eth0 e1000e
alias eth1 e1000e
alias eth2 e1000e
alias eth3 e1000e
alias eth4 e1000e
alias eth5 e1000e
alias scsi_hostadapter sata_sil24
alias scsi_hostadapter1 ata_piix
alias scsi_hostadapter2 ahci

options loop max_loop=32
options netloop nloopbacks=16




[ add comment ] ( 6 views )   |  [ 0 trackbacks ]   |  permalink
Linux: RBL (blacklisting) and preventing spam in Zimbra 
If you need to improve the antispam performance of Zimbra suite then the adding a few more settings could be helpful.

the defaukt zimbraMtaRestriction policy is set as below:

[linux ~]$ zmprov gacf | grep zimbraMtaRestriction
zimbraMtaRestriction: reject_invalid_hostname
zimbraMtaRestriction: reject_non_fqdn_sender


I'm using this:

[zimbra@linux ~]$ zmprov gacf | grep zimbraMtaRestriction                        zimbraMtaRestriction: reject_invalid_hostname
zimbraMtaRestriction: reject_non_fqdn_sender
zimbraMtaRestriction: reject_non_fqdn_recipient
zimbraMtaRestriction: reject_unknown_sender_domain
zimbraMtaRestriction: reject_unknown_recipient_domain
zimbraMtaRestriction: reject_unauth_pipelining
zimbraMtaRestriction: reject_unauth_destination
zimbraMtaRestriction: reject_rbl_client bl.spamcop.net
zimbraMtaRestriction: reject_rbl_client sbl.spamhaus.org
zimbraMtaRestriction: reject_rbl_client cbl.abuseat.org
zimbraMtaRestriction: reject_rbl_client dul.dnsbl.sorbs.net


to set the values use the following command:
[zimbra@linux ~]$ zmprov mcf zimbraMtaRestriction reject_invalid_hostname \
zimbraMtaRestriction reject_non_fqdn_sender \
zimbraMtaRestriction reject_non_fqdn_recipient \
zimbraMtaRestriction reject_unknown_sender_domain \
zimbraMtaRestriction reject_unknown_recipient_domain \
zimbraMtaRestriction reject_unauth_pipelining \
zimbraMtaRestriction reject_unauth_destination \
zimbraMtaRestriction "reject_rbl_client bl.spamcop.net" \
zimbraMtaRestriction "reject_rbl_client sbl.spamhaus.org" \
zimbraMtaRestriction "reject_rbl_client cbl.abuseat.org" \
zimbraMtaRestriction "reject_rbl_client dul.dnsbl.sorbs.net"


to turn on antispam filtering in zimbra (SpamAssassin):
zmlocalconfig -e amavis_dspam_enabled=true


reccomended reading



[ add comment ] ( 8 views )   |  [ 0 trackbacks ]   |  permalink
XEN bridging by system, instead of using /etc/xen/scripts/*wrapper* 
get vlan
/etc/sysconfig/network-scripts>cat ifcfg-bond1.x
DEVICE=bond1.x
BOOTPROTO=none
BRIDGE=xenbr1
ONBOOT=yes
VLAN=yes


just a bridge
/etc/sysconfig/network-scripts>cat ifcfg-xenbr1
DEVICE=xenbr1
TYPE=Bridge
BOOTPROTO=none
ONBOOT=yes
DELAY=0
NM_CONTROLLED=no

with ip

/etc/sysconfig/network-scripts>cat ifcfg-xenbr0
DEVICE=xenbr0
TYPE=Bridge
BOOTPROTO=none
IPADDR=X.X.X.X
NETMASK=255.255.255.0
ONBOOT=yes
DELAY=0
NM_CONTROLLED=no


[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink
He's got me rockin like Stephen Hawking 


[ add comment ] ( 5 views )   |  [ 0 trackbacks ]   |  permalink

<<First <Back | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | Next> Last>>