Questions tagged [keepalive]

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Windows and IISExpress with TCP keep-alive block further connections

I have a very annoying problem. During development of an embedded application with LwIP I have the server-side application running on my Windows 10 development machine so I can more easily debug the ...
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70 views

Keep connection alive, to make public IP persists

I have a usb modem, connected in a linux distribution (doesn't matter which, I guess), the modem is handled by wvdial and ppp, but everytime I perform a web request, I've got a different public IP ...
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1answer
766 views

change keeplived process user from root to keepalived(or other)

I want to know how to change the process name root to another one? when using the following command: ps aux | grep keepalived root 26982 0.0 0.0 19344 1560 ? Ss 11:52 0:00 /usr/...
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3answers
134 views

Keep SSH connection alive when moving large folder

Context : I have a web server (my hosting provider is OVH). I have a large folder with many files in many sub-directories (100k+ files). I need to move this directory from one place to anuther on ...
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629 views

FFmpeg TCP point to point streaming with tee muxer - handle network disconnections

we are using FFmpeg for live streaming between two computers (point to point streaming) using TCP. The streaming works fine and we wanted to add support for two features: Save the stream locally in ...
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112 views

Keepalived not routing certain tcp packets

I am trying to implement a NAT based keepalived load balancer for our outgoing squid proxies. I have set up 2 keepalived VMs which share a VIP: [root@keepalived-01 ~]# ip a 1: lo: <LOOPBACK,UP,...
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3answers
523 views

Does LFTP support keepalive for FTP/SFTP?

In the documentation it's not clear whether lftp support keepalive for FTP and SFTP protocols. Does someone know the answer?
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186 views

Binding SOCKS proxy to keepalive virtual ip

I am creating a SOCKS proxy using OpenSSH dynamic port forwarding on an ssh-server in a keepalive cluster containing 3 machines. The virtual ip of this cluster is 1.1.1.4 The master node of the ...
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3answers
44k views

How do I keep an RDP session alive from the client side?

I'm on a Windows 7 workstation and have to connect to an offsite virtualized Windows 2008 server through RDP to use an app for work. After about 15 minutes of idle time the whole thing freezes up and ...
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2k views

Is there a way to completely disable TCP keepalive?

I'm trying to disable TCP Keepalive in a linux machine. If I set the three keepalive parameters to 0, the machine refuses connections. sysctl net.ipv4.tcp_keepalive_time=0 sysctl net.ipv4....
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1k views

Keepalived multiple condition TCP_CHECK

I have few web servers under two keepalived servers, and to check the health of a real web server I use this fragment of keepalived configuration TCP_CHECK # healthchecker : ...
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1answer
167 views

Move from keepalived to HAProxy

I have four web server under two keepalived load balance server, so I can be sure that the active keepalived server will load balance the traffic on my four web servers, and when it fails the passive ...
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1answer
421 views

Keepalive packets - what is a reasonable setting for KeepAliveTime?

The parameter controls how frequently TCP tries to verify that an idle connection is still intact by sending a keepalive packet. If the remote computer is still reachable and functioning, the remote ...
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0answers
495 views

Best way to avoid HDD head parking under OSX via bash script

After replacing the optical drive of my MacBook Pro (mid 2012) with a SATA-II HDD, I'm having trouble with the HDD's annoying head parking after short intervals of usage. Since I'm using the MacBook ...
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1answer
2k views

Keep alive, ESTABLISHED and TIME_WAIT semantics

When I use the following command netstat -ant | grep :9111 | awk '{print $6}' | sort | uniq -c | sort -n I get the following 1 LAST_ACK 1 LISTEN 2 SYN_RECV 7 FIN_WAIT1 51 ESTABLISHED ...
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4answers
26k views

Why would you ever set MaxKeepAliveRequests to anything but unlimited?

Apache's KeepAliveTimeout exists to close a keep-alive connection if a new request is not issued within a given period of time. Provided the user does not close his browser/tab, this timeout (usually ...
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2answers
2k views

Is there a way to pause/resume particular TCP connection?

I'm playing online game that matches me against random players. I found out that when I unplug my Ethernet cable, I have a minute to decide do I want this match to count. If things go wrong, I just ...
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1answer
262 views

How can I fire many HTTP requests using a single TCP connection?

I would like to know if there is a way to open a single TCP connection to a server and request several pages over HTTP on that connection. Is there a way to do this using common Linux client tools?
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57 views

keepalived IP filter?

I am using keepalived to load-balance connections to 4 servers. Is there any way to route all non-logged-in users to one server and all logged-in users to the other 3 servers? I can update a list/...
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1answer
2k views

How to Maintain an Inactive Tcp Connection?

If a TCP server establishes a TCP connection with a TCP client and the TCP client never sends any packet to the server. I roughly know firewalls near the TCP server may send a RST to it. Or there is ...
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2answers
720 views

how disable resume hard disk from Sleep on Shut Down

I'm using Windows 7 , I set my drive to sleep after 10 minutes and it works but, when I shut down windows my hard drive resume from sleep. Why? It shouldn't keep hard drive sleep and shut down the PC ?...