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16%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
Expect do this 15 # automatically - pausing briefly before sending each character. This 16 # pacifies every program I know of. The -c flag makes the script do 17 # this in the first place. The -C flag
16%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
that applies to all jails (a brief set of rules about a particular service) that don't have the ignoreip setting explicitly configured is: bantime = 1 maxretry = 3 Here, it's referring to how many
16%
Server virtualization with VirtualBox
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Federico Caputo, 123RF.com
apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-commona pache2-doc apache2-suexec libapache2-mod-php5 libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapr1 libaprutil1 libaprutil1
16%
Backup and replicate VMs on VMware ESXi
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © urbanhearts, fotolia.com
the option --backup-vms=VM1,VM2,VM3, which defines which VMs you want XSIBackup to replicate. Additionally, you can define whether the backup solution should overwrite existing files or only add changed data
16%
Live migration of virtual machines on Hyper-V
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Anna Omelchenko, 123RF.com
, such as an external hard drive, or directly across the network. You can also set up a schedule (Figure 3). Figure 3: Scheduling the replication
16%
Tested: Autoconfiguring IPv6 clients
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Benis Arapovic, 123RF.com
, the MAC address (e.g., 00:11:22:33:44:55) is split down the middle, and two bytes containing FF:FE are inserted. This gives you 64 bits. If the basis is a globally unique address (which should be the case
16%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
seq_timeout = 10 08 tcpflags = syn 09 command = /usr/sbin/iptables -A INPUT -s \ %IP% -p tcp --dport 22 -j ACCEPT 10 11 [closeSSH] 12 sequence = 9000
16%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... Code Example 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my ... The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... Tuning I/O Patterns in C
16%
Shared Storage with NFS and SSHFS
12.09.2018
Home »  HPC  »  Articles  » 
. Moreover, you don't need to add or run a special client tool on the client nodes or a special server tool on the storage node; SSH just needs to be active on your system. Almost all firewalls allow port 22
16%
Shared Storage with NFS and SSHFS
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © Oleksiy Mark, 123RF.com
an alternative that has more security. SSHFS Filesystem in Userspace (FUSE) [3] offer several attractive features. Such filesystems are easy to code because they are in user space (have you tried getting

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