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29%
OpenSMTPD makes mail server configuration easy
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © alphaspirit, 123RF.com
:/etc/smtpd_remote.db 04 listen on 192.0.2.15 inet4 port 25 hostname post.example.org tls pki post 05 listen on 192.0.2.15 inet4 port 587 hostname mail.example.org tls-require pki mail auth tag remote 06 listen
29%
I/O Profiling at the Block Level
27.08.2014
Home »  HPC  »  Articles  » 
was the sequential write test using 1MB record sizes: ./iozone -i 0 -c -e -w -r 1024k -s 32g -t 2 -+n > iozone_write_1.out To gather the block statistics, I ran ioprof in a different terminal window before I ran
29%
OpenMP – Loops and Data Control
08.05.2019
Home »  HPC  »  Articles  » 
 (i=0; i < n; i++) {    ... }   for (j=0; j < m; j++) {    ... }   for (k=0; k < n*m; k++) {    ... } Listing 2: Parallelized Sets of Loops Fortran C !$omp parallel do do i=1,n
29%
Storage across the network with iSCSI and Synology DiskStation Manager
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Lead Image © Vladimir Nenov, 123RF.com
MOUNTPOINTS sda 8:0 0 25G 0 disk |-sda1 8:1 0 1M 0 part |-sda2 8:2 0 25G 0 part /var/snap/firefox/common/host-hunspell In my case, I also want to configure my client
29%
Monitoring events with the Audit daemon
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © alphaspirit , 123RF.com
not to log the SYSTEM_BOOT event type. Using ausearch -m 2>&1 | tr ' ' '\n' | grep '[A-Z]$' | sort will show a list of all available event types. Viewing Log Files The ausearch command can also be used
29%
ratarmount Archive Mount Tool
07.09.2025
Home »  Articles  » 
Hub, S3, Samba v2 and v3, Dropbox, and possibly others. One aspect of ratarmount  that I don’t like is that it mounts the archive as read-only and then keeps any changes or new files in a separate
29%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
to configure them. And, all this easily can be handled with a matching structure and a sophisticated Kickstart profile on the Spacewalk server [2]. An article on this topic was published not so long ago in Admin
29%
RADOS and Ceph: Part 2
22.10.2012
Home »  HPC  »  Articles  » 
rack straw 2 root straw 0 The --num_osds 6 parameter specifies that the cluster has six individual storage devices at its disposal. The --build option introduces a statement with three three ... RADOS and Ceph: Part 2 ... The RADOS object store and Ceph filesystem: Part 2
29%
The RADOS object store and Ceph filesystem: Part 2
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Kateryna Pruchkovska, 123RF.com
straw 2 tells RADOS that two servers exist per rack. root straw 0 refers to the number of racks and determines that the replicas should be distributed equally on all available racks. Subsequently, if you ... RADOS and Ceph : Part 2 ... The RADOS object store and Ceph filesystem: Part 2
29%
Arp Cache Poisoning and Packet Sniffing
05.09.2011
Home »  Articles  » 
 
can see how the arp cache poisoning works: $ sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 \ -D 192.168.1.133 -h 00:22:6E:71:04:BB -m 00:0C:29:B2:78:9E \ -H 00:22:6E:71:04:BB -M 00:0C:29:B2:78:9E

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