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21%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 25/tcp closed smtp
21%
Coordinating distributed systems with ZooKeeper
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © smileus, 123RF.com
/test [zk: localhost:2181(CONNECTED) 11] get /test HelloWorld! cZxid = 0xa1f54 ctime = Sun Jul 20 15:22:57 CEST 2014 mZxid = 0xa1f54 mtime = Sun Jul 20 15:22:57 CEST 2014 pZxid = 0xa1f54 cversion = 0
21%
Secure Your Server with TCP Wrappers
02.10.2012
Home »  Articles  » 
 
of many automated attack methods. As well as being able to take individual IP addresses, hosts.allow can happily handle the CIDR notation of classless IP address ranges, such as: sshd: 10.10.10.0/24, 1.2.3
21%
Machine learning and security
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Vlad Kochelaevskiy, 123RF.com
i < 1000: 21 my_data.append(data_w_weekend(i / 1000)) 22 i += 1 23 24 # add some noise 25 random_gain = 0.1 # factor for the noise 26 i = 0 27 while i < 1000: 28 my_data[i] += np
21%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
.13.134.52):            Not shown: 994 filtered ports            PORT    STATE  SERVICE VERSION            22/tcp  open   ssh     OpenSSH 4.3 (protocol 2.0)            25/tcp  closed smtp            53/tcp  open   domain  ISC BIND 9.3
21%
Gathering Data on Environment Modules
10.09.2012
Home »  HPC  »  Articles  » 
to logfiles, and it’s pretty simple to use: [laytonjb@test1 ~]$ logger "This is a test" ... [root@test1 ~]# tail -n 2 /var/log/messages Aug 22 15:54:47 test1 avahi-daemon[1398]: Invalid query packet. Aug 22 17
21%
VAX emulation with OpenVMS
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Ole Houen, 123RF
attach xq eth0 21 22 set cpu idle 23 boot cpu The first step in the OpenVMS installation is to write a so-called "save set" of the operating system from the CD to the hard drive: backup dua3:vms073
21%
Using rsync for Backups
07.01.2014
Home »  Articles  » 
 
. The approach used by Rubel has several advantages. The first is that the most recent backup, backup.0 , always contains the full backup and backup.1 through backup. < N >, where <N> is the last incremental
21%
Listing 2
21.08.2012
Home »  HPC  »  Articles  »  Warewulf 4 Code  » 
 
.6 M Is this ok [y/N]: y Downloading Packages: (1/5): apr-1.3.9-3.el6_1.2.i686.rpm                                            | 128 kB     00:00 (2/5): expat-2.0.1-11.el6_2.i686.rpm
21%
Getting the most from your cores
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © ktsdesign, 123RF.com
interval and add to dictionary 38 interv = 0.5; 39 d['interval'] = interv; 40 41 # Number of cores: 42 N = psutil.cpu_count(); 43 d['NCPUS'] = N; 44 45 cpu_percent = []; 46 epoch

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