Systemd

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Susant Sahani

systemd

Software

systemd is a system and session manager for Linux,
Lennart Poettering Beyond Init: systemd

systemd is a system and session manager for Linux, compatible
with SysV and LSB init scripts.
Lennart Poettering Beyond Init: systemd

systemd is a system and session manager for Linux, compatible
with SysV and LSB init scripts. systemd provides aggressive
parallelization capabilities,
Lennart Poettering Beyond Init: systemd

init(8)
Lennart Poettering Beyond Init: systemd

Parallelization
Lennart Poettering Beyond Init: systemd

Socket-Based Activation
Lennart Poettering Beyond Init: systemd

Socket-Based Activation
The kernel orders and buers requests for us!
Lennart Poettering Beyond Init: systemd

Socket-Based Activation
The kernel orders and buers requests for us!
Implicit dependencies!
Lennart Poettering Beyond Init: systemd

Socket-Based Activation
The kernel orders and buers requests for us!
Implicit dependencies!
Patching daemons
Lennart Poettering Beyond Init: systemd

Bus-Based Activation
Lennart Poettering Beyond Init: systemd

Starting Less: On-Demand Loading
Lennart Poettering Beyond Init: systemd

Parallelizing File System Jobs
Lennart Poettering Beyond Init: systemd

Parallelizing File System Jobs
autofs!
Lennart Poettering Beyond Init: systemd

Shell is evil
Lennart Poettering Beyond Init: systemd

Shell is evil
Move to systemd, daemons, kernel, udev, . . .
Lennart Poettering Beyond Init: systemd

Shell is evil
Move to systemd, daemons, kernel, udev, . . .
Provide proper debugging facilities
Lennart Poettering Beyond Init: systemd

The best babysitter.
Lennart Poettering Beyond Init: systemd

The best babysitter.
Control Groups!
Lennart Poettering Beyond Init: systemd

The best babysitter II
Lennart Poettering Beyond Init: systemd

The best babysitter II
Environment, resource limits, working directory, chroot(), umask,
OOM adjustment, nice level, IO priority and class, CPU scheduler
priority and policy/reset-on-fork, CPU anity, timer slack, stdio to
syslog/tty/null/kmsg, uid, gid, supplementary groups,

le systems, inaccessible systems, mount
propagation, private /tmp), capabilities (inherited set, bounding
set, secure bits), . . .
Lennart Poettering Beyond Init: systemd

Unit types: service, socket, device, mount, automount, target,
snapshot, timer, swap, path
Lennart Poettering Beyond Init: systemd

Don't reinvent the wheel:
Lennart Poettering Beyond Init: systemd

Don't reinvent the wheel:
Read SysV/LSB init script headers, read /etc/fstab, support
traditional inetd modes, support /dev/initctl, utmp, wtmp,
support double-fork()ing daemons.
Lennart Poettering Beyond Init: systemd

les.
Lennart Poettering Beyond Init: systemd

Snapshots
Lennart Poettering Beyond Init: systemd

Transaction System
Lennart Poettering Beyond Init: systemd

D-Bus!
Lennart Poettering Beyond Init: systemd

systemadm
Lennart Poettering Beyond Init: systemd

systemd as basic OS building block
Lennart Poettering Beyond Init: systemd

systemd as basic OS building block
systemd for cross-distribution standardization
Lennart Poettering Beyond Init: systemd

systemd in the distributions
Lennart Poettering Beyond Init: systemd

Future: managing sessions
Lennart Poettering Beyond Init: systemd

Say No! to Copyright Assignment.
Lennart Poettering Beyond Init: systemd

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Computers are connected in a network to exchange information or resources with each other. Two or more computer are connected through network media called computer media. There are a number of network devices or media that are involved to form computer network. Computer loaded with Linux Operation System can also be a part of network whether it is a small or large network by multitasking and multi user natures. Maintaining of system and network up and running is a task of System / Network Administrator’s job. In this article we are going to review frequently used network configuration and troubleshoot commands in Linux.

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