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jcb@hercules:# sar -u -f /var/log/sysstat/sa02 -s 12:00:00 -e 13:00:00 Linux 3.5.0-43-generic (hercules) 02.12.2013 _x86_64_ (2 CPU) 12:05:01 CPU %user %nice %system

_time) print(" Time taken in seconds: {0} s").format(time_taken_in_micro) If a section of code is called repeatedly, just sum the elapsed times for the section and sum the number of times that section

Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019   write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0

time: 11.79 secs Data transferred: 2.47 MB Response time: 0.22 secs Transaction rate: 35.79 trans/sec Throughput: 0

=1): err= 0: pid=1634: Mon Oct 14 22:18:59 2019 write: IOPS=118k, BW=463MiB/s (485MB/s)(10.0GiB/22123msec); 0 zone resets [ ... ] Run status group 0 (all jobs): WRITE: bw=463MiB/s (485MB/s), 463MiB/s

More than 20 years having passed since its introduction, and HTTP certainly shows some signs of age. Google’s new SPDY protocol solves some problems with HTTP without breaking existing websites. ... Suddenly HTTP 2.0 is just around the corner; the first draft is due in May, and Google’s SPDY protocol could be a part of it. SPDY has the advantage of already being implemented on Google’s own servers ... More than 20 years have passed since its introduction, and HTTP certainly shows some signs of age. Google’s new SPDY protocol solves some problems with HTTP without breaking existing websites.

$ john -wordlist:password.lst passfile.txt 02 Loaded 2 passwords with 2 different salts (FreeBSD MD5 [32/64]) 03 admin (root) 04 t-bone (khess) 05 guesses: 2 time: 0:00:00:00 100% c/s

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

Commands = -f /var/log/collectl -r00:00,7 -m -F60 -s+YZCD --iosize These options allow me to monitor CPU, disk, and network in brief mode and slab, processes, and disk in detailed mode. I also added the ability

-> ../../devices/pci0000:00/0000:00:03.0/net/eth0 |---lo -> ../../devices/virtual/net/lo The device is no longer listed in the default namespace. Listing 3 Configuring Devices $ ip link set eth1