can anyone provide some insight on this please.. I have been trying to debug a hang issues for past few weeks.. and finally foudn that it starts with this issue when I see a lot of connections in SYN_RECV state.
as it is happening now netstat shows around 14-16 connectiosn in SYNC_RECV If I could get some inputs on this , I could have some workaround to mitigate the issues Thanks On Mon, Sep 12, 2016 at 10:13 AM, Rakesh Rajasekharan < rakesh.rajasekha...@gmail.com> wrote: > sorry I guess I did not put the question correctly.... > > I wanted to know .. like we have the ListenBacklog for apache to basically > define the number of connections it can handle.. do we have some thing > similar for our krb5kdc service.. as the SYN floodin at 88 looks like > krb5kdc service is not able to handle sudden spurt in connections or the > number of connections are more than it could handle.. > > So, would be great if I could know how many connection it can support at > any given time ..most of the times I see this error while i add clients to > IPA master.. so if thers a known limit , I could first check netstat to see > how many connections I have at any point and if its below the limit only > then setup ipa-client-install > > Thanks, > > Rakesh > > On Sun, Sep 11, 2016 at 11:10 PM, Rakesh Rajasekharan < > rakesh.rajasekha...@gmail.com> wrote: > >> Hi, >> >> In my Freeipa setup, I frequently see this message >> >> request_sock_TCP: Possible SYN flooding on port 88. Sending cookies >> >> >> Is there a way to increase the ListenBacklog so that I can workaround >> this error as suggested i this doc >> https://access.redhat.com/solutions/30453 >> >> Thanks, >> Rakesh >> >> >> >
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