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* sysctl: add some hints how to override settingsZbigniew Jędrzejewski-Szmek2015-02-271-1/+8
| | | | | | | Also a link to decent documentation for sysrq keys. It is surprising hard to find. https://lists.fedoraproject.org/pipermail/devel/2015-February/208412.html
* sysctl.d: default to fq_codel, fight bufferbloatMichal Schmidt2014-10-201-0/+3
| | | | | | | | | | | | | | | | | | | | Quoting from Jon Corbet's report of Stephen Hemminger's talk at Linux Plumbers Conference 2014 (https://lwn.net/Articles/616241/): [...] So Stephen encouraged everybody to run a command like: sysctl -w net.core.default_qdisc=fq_codel That will cause fq_codel to be used for all future connections [Qdiscs apply to interfaces, not connections. Pointed out by TomH in the article comments. -- mschmidt] (up to the next reboot). Unfortunately, the default queuing discipline cannot be changed, since it will certainly disturb some user's workload somewhere. Let's have the recommended default in systemd. Thanks to Dave Täht for advice and the summary at https://lists.bufferbloat.net/pipermail/cerowrt-devel/2014-October/003701.html
* sysctl: always write net.ipv4.conf.all.xyz= in addition to ↵Lennart Poettering2014-08-151-0/+3
| | | | | | | | net.ipv4.conf.default.xyz= Otherwise we have a boot-time race, where interfaces that popped up after the sysctl service would get the settings applied, but all others wouldn't.
* sysctl.d: enable promote_secondaries by defaultTom Gundersen2014-07-251-0/+3
| | | | | | | | | | | | | | | Without this, secondary addresses would get deleted when the primary one is. This is not the desired behavior when one would like to transition from one address to another in the same subnet (such as when a new IP address is given over DHCP). In networkd, when given a new IP over DHCP we will add it, without explicitly removing the old one first (and hence never have a window without an IP address configured). Assuming the addresses are in the same subnet, that means that the old address is the primary and the new address is the secondary one. Once the old address expires, the kernel will drop it. With the old behavior this means that both addresses would be lost, which is clearly not what we want. With the new behavior, only the old address is lost, and the new one is promoted to primary. Reported by Michael Olbrich <m.olbrich@pengutronix.de>
* man: add systemd-coredump(8) and a bunch of linksZbigniew Jędrzejewski-Szmek2014-07-141-1/+3
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* sysctl: default - add safe sysrq optionsKay Sievers2013-03-151-0/+3
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* sysctl: add 50-default.confKay Sievers2013-03-152-1/+22
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* sysctl: coredump.conf -> 50-coredump.confKay Sievers2013-03-151-0/+0
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* man: fix compilation of exampleZbigniew Jędrzejewski-Szmek2013-03-071-1/+1
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* relicense to LGPLv2.1 (with exceptions)Lennart Poettering2012-04-121-2/+2
| | | | | | | | | | | | | | We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
* journal: hook up coredumping with journalLennart Poettering2012-01-143-0/+12