Ubuntu :: Active UNIX Domain Sockets?
Jul 27, 2010
After my first installation/ version of Ubuntu 64, I performed a netstat and noticed I did NOT have any Active UNIX domain sockets as I do now. After doing some research, I found this is related to MYSQL and server services which I am in no need of running and nor do I want to run if not needed. So exactly what are these services used for, which app is creating this and why?
Is it possible to remove the app or processes if they are not needed? Killing these connections every time they attempt to establish would be rhetorical.
~$ uname -a
Linux panda 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:20:59 UTC 2010 x86_64 GNU/Linux
:~$ netstat | more
Active Internet connections (w/o servers)
[Code].....
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Jun 28, 2009
Did a netstat -an got this
Active UNIX domain sockets (servers and established)
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Oct 12, 2010
When I typed netstat -lna, the output:
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:580 0.0.0.0:* LISTEN
...
...
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node
unix 2 [ ACC ] STREAM LISTENING 23581
...
...
Can anyone explain to me:
1. What is "Active Internet connections" & "Active UNIX domain sockets"?
2. What is unix Proto?
3. Difference between LISTEN and LISTENING state.
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May 13, 2010
The company I work for, as usual, is Microsoft-centric. I'm attempting to integrate my Ubuntu server into the domain to allow domain users to authenticate to the server and access file shares using Samba. Here's my current configuration:
[Code].....
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Jan 5, 2010
I have described my issue in detail here: [URL] basically, I am having a mysql server which keeps piling up on it's unix domain socket connections.
here's a small example of netstat as it looks now (count about 80-100 connections paired with httpd):
Code:
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node PID/Program name Path
unix 2 [ ACC ] STREAM LISTENING 3521428 12429/mysqld /tmp/mysql.sock
[Code].....
This is indeed a mysql server issue as far as I managed to debug it but until a workaround/fix is found I need to have my server responsive and the first idea that comes to my mind is to somehow kill those stray connections. as described in the mysql topic mentioend above, killing from mysql will not work. I need to kill them from outside mysql. I have setup a crontab script to kill and restart the mysql server when it cannot connect and it runs every 5 min. however this only lead to mysql being down sooner rather than later because in many cases just kill -9 and then service start mysql does not do the job (it's either part of the same issue of mysql or another issue). basically I need to manually kill mysqld instances a bunch of times until it's ok, OR, if that doesn't work, stop everything that is using mysql, wait a few minutes, and then start mysql. so I ditched that script and now I am manually restarting mysql server every ~ 24 hours.
so basically it's a pain. if I were to kill the stray connections however, I will not have to bother every day with restarting mysql.
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Mar 4, 2010
i have installed RHEL5 on my system.i want to join my system on my organisation s active directory domain.how can i do it?suppose domain name is "abc-xyz"
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Mar 11, 2010
When i try to join my Ubuntu server to Microsoft Active Directory domain, i get the error message below.
Kinit failed: Clock skew too great Failed to join domain: Time difference at domain controller I know the reason is because of the time difference between my domain controller and the Ubuntu server. But what i want to know is that possible to join a domain without time synchronisation? Because my domain controller is working for another time zone, for another Country, so i can not synchronise it with my Ubuntu server.
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Mar 22, 2009
Attach a Fedora/RHEL/CentOS system to an Active Directory DomainBelow is a step by step outline of how to configure a Linux Samba fileserver to use an Active Directory domain for authentication and authorization in place of flat files. Note that this configuration has been replicated using Fedora 10, RHEL 5.3 and CentOS 5 since they all more or less share the same code base.me of the example server in this document is erver1.domain.forest.org, substitute correctly where appropriate. At the very least following packages must also be installed:
sambasamba-commonsamba-clientkrb5-workstationopenldap-clientsIt would be prudent to understand the underlying concepts of how Kerberos and Samba work prior to deploying this type of server. I find that SE-Linux will interfere with Samba services, particularly with winbind. I usually set SE-Linux to be in a permissive mode. It is possible to update the SE-Linux policies but that is outside the scope of this document, i.e you're on your own. In some cases I turned SE-Linux off since it was causing winbind to stop responding.
1. Set NTP to use the correct server for your Active Directory domain:shell> system-config-timeSet the primary NTP server to be your domain/forest NTP server2. Make backups of and edit the following system configuration files:a. shell> cp /etc/resolv.conf /etc/resolv.conf.bakb. shell> vi /etc/resolv.conf
nameserver dns_server1_ip_address
nameserver dns_server2_ip_address
search domain.forest.org
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Jun 29, 2011
I need to bring my Suse 11 server into active directory domain using samba and winbind. Please let me know the procedure how to do this.
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Mar 11, 2011
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Feb 16, 2011
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Jun 8, 2011
Only Single core active on quad core AMD when acpi is active.with acpi=offuname -aLinux dvip4 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux
Code:
cat /proc/cpuinfo
processor : 0
[code]...
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Feb 3, 2010
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I was just curious how Ubuntu interacts with domain users when on the windows domain. For example, if we have an Ubuntu machine on the Windows domain with a local user "administrator" and that's it, would any domain users be able to log into the Ubuntu work station, similar to how it is on Windows?
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Apr 12, 2011
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below is brief--
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Mar 29, 2010
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Jan 24, 2011
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Feb 16, 2010
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Feb 18, 2010
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Nov 18, 2010
Is there any way to implement a simple ping script in C (unix)? I'm programming simple OpenWRT scripts.
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[URL]
However, nothing happens, nothing is sent.
When I look at the code, in the portion where the socket is created, I can see that the socket is not binding to any interface:
Code:
if ((sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)) == -1)
{
perror("socket");
exit(EXIT_FAILURE);
}
setsockopt(sockfd, IPPROTO_IP, IP_HDRINCL, &optval, sizeof(int));
Instead, it uses "setsockopt" to set some options.
My guess is that it is trying to send packets over the eth0 interface instead over the wl0 (wireless) interface (which is the one I want to use to send pings).
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Jan 24, 2011
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