» ADMIN Magazine

100%

The practical benefits of network namespaces

15.08.2016

Home » Archive » 2016 » Issue 34: Softw... »

DEFAULT group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00

91%

Network analysis with the Bro Network Security Monitor

05.12.2014

Home » Archive » 2014 » Issue 24: Visua... »

Lead Image © Aleksey Mnogosmyslov, 123RF.com

.518025 pkts=2 kpps=0.0 kbytes=0 mbps=0.0 nic_pkts=2 nic_drops=0 u=0 t=0 i=0 o=0 nonip=2 1415510238.518111 pkts=8 kpps=0.0 kbytes=1 mbps=0.0 nic_pkts=10 nic_drops=0 u=5 t=2 i=0 o=0 nonip=1 1415510241

89%

Processor and Memory Metrics

12.02.2014

Home » HPC » Articles »

: 0.0% CPU2 user: 0.0% nice: 0.0% system: 0.0% idle: 100.0% iowait: 0.0% irq: 0.0% softirq: 0.0% steal: 0.0% guest: 0.0% CPU3 user: 0.0% nice

87%

networkd and nspawn in systemd

11.04.2016

Home » Archive » 2016 » Issue 32: Measu... »

-20150521 ~]# readlink /proc/self/ns/* ipc:[4026532776] mnt:[4026532771] net:[4026531969] pid:[4026532777] user:[4026531837] uts:[4026532775] # ps -p 1 PID TTY TIME CMD 1 ? 00:00:00

87%

Systemd network management and container handling

13.06.2016

Home » Archive » 2016 » Issue 33: IPv6... »

] pid:[4026532777] user:[4026531837] uts:[4026532775] # ps -p 1 PID TTY TIME CMD 1 ? 00:00:00 bash # readlink /proc/self/ns/* ipc:[4026531839] mnt:[4026531840] net:[4026531969] pid

86%

Monitoring events with the Audit daemon

17.02.2015

Home » Archive » 2015 » Issue 25: Safe... »

Combined Search # ausearch -k hosts-file -ts today -ul 1000 ---- time->Tue Jul 1 16:36:00 2014 type=PATH msg=audit(1404225360.791:124138): item=0 name="/etc/hosts" inode=2755966 dev=fd:02 mode=0100644

83%

Managing containers with Podman

05.12.2019

Home » Archive » 2019 » Issue 54: NVMe... »

Lead Image © sandrobrezger, photocase.com

TIME CMD Root 1 0 0 19:05 ? 00:00:00 sleep 1000 Listing 2 Process on the Host $ ps -ef|grep sleep Cherf 30328 29757 0 20:44 ? 00:00:00 sleep 1000 Cherf 30396 3353

83%

Filesystem Murder Mystery

09.04.2019

Home » Archive » 2019 » Issue 50: Bpfilter »

in mv ubuntu@aws:~/slow-mv$ strace -t mv 3GB.copy 3GB 19:00:09 execve("/bin/mv", ["mv", "3GB.copy", "3GB"], 0x7ffd0e7dddf8 /* 21 vars */) = 0 19:00:09 brk(NULL) = 0x55cd7d1ce000

83%

Understanding the Status of Your Filesystem

18.06.2014

Home » HPC » Articles »

mtime age file in days: 0.016 days Standard deviation mtime age in days: 590.7352 days *** Mtime interval summary [ 0- 1 days]: 176 ( 0.05%) ( 0.05% cumulative) [ 1- 2 days]: 0 ( 0.00%) ( 0

81%

Distributed storage with Sheepdog

07.10.2014

Home » Archive » 2014 » Issue 23: 10 Ti... »

Sheepdog Server in Action # ps -ef|egrep '([c]orosyn|[s]heep)' root 491 1 0 13:04 ? 00:00:30 corosync root 581 1 0 1:13 PM ? 00:00:03 sheep -p 7000 /var