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Thread: Loopback connection. This can be an Attack DDOS ?

  1. #1
    Join Date
    Aug 2013
    Posts
    12

    Question Loopback connection. This can be an Attack DDOS ?

    Hi Everybody,

    So I'm receiving this logs bellow, but this are in the several servers and all are differents versions wowza and java. I guess that an attack DDOS. After begin this messages the wowza show me is online, but dont working, and same restarting wowza the problem persist. Only restarting server to work again.


    #Version: 1.0
    #Start-Date: 2015-09-11 00:02:19 BRT
    #Software: Wowza Streaming Engine 4.1.2 build13947
    #Date: 2015-09-11
    #Fields: x-severity	x-category	x-event	date	time	c-client-id	c-ip	c-port	cs-bytes	sc-bytes	x-duration	x-sname	x-stream-id	x-spos	sc-stream-bytes	cs-stream-bytes	x-file-size	x-file-length	x-ctx	x-comment
    WARN	server	comment	2015-09-11	00:02:19	-	-	-	-	-	110825.681	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:02:20	-	-	-	-	-	110826.275	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:07:19	-	-	-	-	-	111125.648	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:07:20	-	-	-	-	-	111126.105	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:09:13	-	-	-	-	-	111239.438	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:09:23	-	-	-	-	-	111249.161	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:12:20	-	-	-	-	-	111425.992	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:12:20	-	-	-	-	-	111426.531	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:17:19	-	-	-	-	-	111725.35	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:17:20	-	-	-	-	-	111725.851	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:18:09	-	-	-	-	-	111775.213	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:19:24	-	-	-	-	-	111849.985	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:22:20	-	-	-	-	-	112025.825	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:22:20	-	-	-	-	-	112026.421	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:27:20	-	-	-	-	-	112325.818	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:27:20	-	-	-	-	-	112326.35	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:29:23	-	-	-	-	-	112449.044	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:32:20	-	-	-	-	-	112626.205	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:32:21	-	-	-	-	-	112626.779	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:37:20	-	-	-	-	-	112925.886	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:37:20	-	-	-	-	-	112926.456	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:39:23	-	-	-	-	-	113049.27	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:42:21	-	-	-	-	-	113226.73	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:42:21	-	-	-	-	-	113227.302	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:47:21	-	-	-	-	-	113526.764	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:47:21	-	-	-	-	-	113527.34	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:49:24	-	-	-	-	-	113650.376	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:52:20	-	-	-	-	-	113826.424	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:52:21	-	-	-	-	-	113826.954	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:57:21	-	-	-	-	-	114126.902	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:57:21	-	-	-	-	-	114127.474	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	00:59:24	-	-	-	-	-	114250.624	-	-	-	-	-	-	-	-	Unexpected exception.: java.io.IOException: Unable to establish loopback connection|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)|at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)|at java.security.AccessController.doPrivileged(Native Method)|at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)|at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)|
    WARN	server	comment	2015-09-11	01:02:20	-	-	-	-	-	114426.511	-	-
    Thank you

  2. #2

    Default

    Hello there.

    Please take a look at this forum post with this issue and a possible solution for your particular case:
    Server Error: Unable to establish loopback connection

    Regards,

    Salvadore

  3. #3
    Join Date
    Aug 2013
    Posts
    12

    Exclamation

    Quote Originally Posted by salvadore View Post
    Hello there.

    Please take a look at this forum post with this issue and a possible solution for your particular case:
    Server Error: Unable to establish loopback connection

    Regards,

    Salvadore
    Thank you Salvadore but I saw this post and was applied this suggestion.

    I only know if was real problem about this. If only simple problem or a true attack DDOS.

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