nproc: netlink access to /proc information
Albert Cahalan <albert@users.sf.net>, William Lee Irwin III <wli@holomorphy.com>, "Martin J. Bligh" <mbligh@aracnet.com>, Paul Jackson <pj@sgi.com> [ Cc: contributors to recent, related thread ] nproc is an attempt to address the current problems with /proc. In short, it exposes the same information via netlink (implemented for a small subset). This patch is experimental. I'm posting it to get the
kernel: add a netlink interface to get information about processes (v2) [LWN.net]
linux-api@vger.kernel.org, Andrey Vagin <avagin@openvz.org>, Oleg Nesterov <oleg@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Cyrill Gorcunov <gorcunov@openvz.org>, Pavel Emelyanov <xemul@parallels.com>, Roger Luethi <rl@hellgate.ch>, Arnd Bergmann <arnd@arndb.de>, Arnaldo Carvalho de Melo <acme@kernel.org>, David Ahern <dsahern@gmail.com>, Andy Lutomirski <luto@amacapital.net>, Pavel O
Kernel Korner - Why and How to Use Netlink Socket | Linux Journal
Due to the complexity of developing and maintaining the kernel, only the most essential and performance-critical code are placed in the kernel. Other things, such as GUI, management and control code, typically are programmed as user-space applications. This practice of splitting the implementation of certain features between kernel and user space is quite common in Linux. Now the question is how c
Passive monitoring of sockets on Linux
26 July 2013 A project I have worked on lately required me to passively monitor the state of a large number of TCP sockets. There are different ways of achieving this. One can for example parse the content of /proc/net/tcp, or work some tcpdump/libpcap-magic to get close to real-time information. My only requirement was to collect a snapshot of the state of the sockets every X second, so using lib
Linuxでcからnetstatっぽいことをしたかった - や
詳しい話はまた後日ということで、とりあえず今回はソースと実行結果だけ貼り付けます。 netlinkの資料は比較的少ないので、カーネルソースを追いながら試行錯誤してみました。 TCPDIAG_GETSOCKでNLM_F_DUMPを指定するとソケットを列挙できるようです。 sportやdportを指定すると条件にマッチしたソケットだけ列挙してくれるので結構便利そう。 wbuf.req.id.idiag_sport=htons(3306);とかするとMySQLの接続数を調べることができたりなんかして。 ntest.c #include<stdio.h> #include<sys/socket.h> #include<linux/netlink.h> #include<linux/inet_diag.h> #include<net/tcp_states.h> int scount(int n) {
RFC 3549: Linux Netlink as an IP Services Protocol
Network Working Group J. Salim Request for Comments: 3549 Znyx Networks Category: Informational H. Khosravi Intel A. Kleen Suse A. Kuznetsov INR/Swsoft July 2003 Linux Netlink as an IP Services Protocol Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyrig
Database Performance Monitor (DPM) | SolarWinds
Database performance monitoring and optimization for traditional, open-source, and cloud-native databases. SaaS platform with a web-based user interfaceLightweight agents via multiple configurationsMonitors databases in the cloud, locally, or hybridReal-time and historical data to pinpoint performance issuesMultiple ways to help protect sensitive data; SOC2 compliant.
Linux, Netlink, and Go — Part 2: generic netlink
I am moving my blog content to mdlayher.com. Please see the updated version of this content at: https://mdlayher.com/blog/linux-netlink-and-go-part-2-generic-netlink/ In Part 1 of this series, I described some of the fundamental concepts of netlink sockets, messages, and attributes. It is assumed that readers are already familiar with netlink from the previous post in this series. In this post, I
Linux, Netlink, and Go — Part 1: netlink
I am moving my blog content to mdlayher.com. Please see the updated version of this content at: https://mdlayher.com/blog/linux-netlink-and-go-part-1-netlink/ I’m a big fan of Prometheus. I use it quite a lot at both home and work, and greatly enjoy having insight into what my systems are doing at any given moment. One of the most widely used Prometheus exporters is the node_exporter: a daemon tha
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https://github.com/jobteaser/filebeat-helper/blob/03752e5653ad1d003067c1537ebce661f40fef27/vendor/vendor.orig/github.com/elastic/gosigar/examples/ss/ss.go
GitHub - elastic/gosigar: Gathers system and per process statistics
Add support for tcp diags. by sebbov · Pull Request #199 · vishvananda/netlink
https://github.com/kristrev/inet-diag-example/blob/master/inet_monitor.c
https://github.com/solo-io/squash/blob/e05b25652275b5b82d0b8d8c5f0c9421faefacfa/pkg/utils/socket/sockets.go