Haciendo las cosas mas complejas

Es muy curioso como los fabricantes van cambiando las cosas, no necesariamente para mejor.

Redhat: si es simple y los usuarios lo saben, cambiémsolo y hagámoslo más complejo. (por ejemplo, setear temas de direcciones ip, rutas, comandos)

Huawei: no usemos los comandos de la industria, pongamos nuevos muy similares (por ejemplo en el caso de switches)

Arquitecturas disyuntivas parte 1 -Erlang

les suena?

1. OS: freeBSD
2. Server : yaws
3. Server application : custom ejabberd
4. Language : erlang
5. Technology : custom XMPP
6. PHP for web
7. Database : mnesia
8. Encryption: RC4

https://www.quora.com/What-programming-language-is-WhatsApp-for-Android-written-in

Saber si la JVM de java es de 32 o 64 bits

Muchas veces es necesario saber si la JVM es de 32 o 64 bits:
con este comando se puede saber:

entrar a la ruta donde esta el JAVA/bin

# java -d64 -version

Si es de 64 bits, genera el resultado de la versión de java 

Si es de 32 bits genera un error

Error de IO en createEJBstubs :

resulta que no se logra acceder a la configuracion del WAS
Se deben dar permisos en la ruta:

 /profiles/Dmgr/configuracion/org.eclipse.osgi


!ENTRY org.eclipse.osgi 4 0 2015-04-07 17:39:54.987
!MESSAGE Error reading configuration: Permission denied
!STACK 0
java.io.IOException: Permission denied
    at java.io.File.createTempFile0(File.java:1729)
    at java.io.File.createTempFile(File.java:1813)

Errores al iniciar un Websphere DeploymentManager (Dmgr)

Esto pede deberser a que el nombre de la maquina no corresponde a la ip con la que está configurada el dmgr, revisar los DNS, y el archivo hosts (/etc/hosts) etc.



3/10/15 13:55:19:286 COT] 00000001 distSecurityC I   securityServiceStarted is false
[3/10/15 13:55:19:315 COT] 00000001 ContainerHelp E   WSVR0102E: An error occurred stopping, com.ibm.ws.xd.odc.xdoperations.HAPluginCfgGeneratorStatusProvider@fd6b072e
java.lang.NullPointerException
    at com.ibm.ws.xd.odc.xdoperations.HAPluginCfgGeneratorStatusProvider.stop(HAPluginCfgGeneratorStatusProvider.java:164)
    at com.ibm.ws.runtime.component.ContainerHelper.stopComponent(ContainerHelper.java:476)
    at com.ibm.ws.runtime.component.ContainerHelper.stopComponents(ContainerHelper.java:460)
    at com.ibm.ws.runtime.component.ContainerImpl.stopComponents(ContainerImpl.java:650)
    at com.ibm.ws.runtime.component.ContainerImpl.stop(ContainerImpl.java:638)
    at com.ibm.ws.runtime.component.ServerImpl.stop(ServerImpl.java:638)
    at com.ibm.ws.runtime.WsServerImpl.bootServerContainer(WsServerImpl.java:318)
    at com.ibm.ws.runtime.WsServerImpl.start(WsServerImpl.java:223)
    at com.ibm.ws.runtime.WsServerImpl.main(WsServerImpl.java:686)
    at com.ibm.ws.runtime.WsServer.main(WsServer.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:234)
    at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:96)
    at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:77)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:340)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
    at org.eclipse.core.launcher.Main.run(Main.java:981)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.launchEclipse(WSPreLauncher.java:379)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.main(WSPreLauncher.java:150)

[3/10/15 13:55:19:317 COT] 00000001 CGBridgeServi I   CWRCB0103I: The core group bridge service has stopped.
[3/10/15 13:55:19:320 COT] 00000001 DragDropDeplo I   CWLDD0004I: Stopping monitored directory application deployment service...
[3/10/15 13:55:19:323 COT] 00000001 DragDropDeplo I   CWLDD0005I: Monitored directory application deployment service is stopped.
[3/10/15 13:55:19:327 COT] 00000001 CfwTCPListene I   ODCF8525I: The unstructured overlay is stopping its inbound TCP channel.

Error en ITCAM CYNVE0000E

Error al validar en
Composite application manager for application diagnostics (IBM)

 Your login attempt was unsuccessful. 

CYNVE0000E: username Your login attempt was unsuccessful. Explanation. ITCAM Visualization Engine login failed.

y en los logs:


SECJ0118E: Authentication error during authentication for user ""


Solucion:
Revisar Base de datos, puede estar abajo

Generador de iptables firewall en linux

Esta es una muy buen herramienta pra la genracion de scripts de iptables en linea.

http://easyfwgen.morizot.net/gen/index.php

Permite seleccionar la interfaz externa interna, los puertos a permitir, nat, etc.


Select Type of Internet Address Help
Static Internet IP Address Help
Dynamic Internet IP Address

Single System or Private Network Gateway? Help
Single System
Gateway/Firewall
Internal Network Interface: Help
Internal Network IP Address: Help
Internal Network: Help
Internal Network Broadcast: Help
Advanced Network Options Help
Internal DHCP Server Help
Mangle the Packet TTL Help
Transparent Web Proxy - Redirect Port: Help
Enable Port Forwarding to an Internal System Help
Block Outbound Services Help
Allow Inbound Services Help
SSH
DNS Server Help
Web Server with SSL
FTP Server Allow Passive FTP Connections? Help
Email Server with SSL
Time Server (NTP)
DHCP Server (on the Internet interface)
ICQ & AIM File Transfers Help
MSN Messenger File Transfers Help
NFS Server Help
mDNSResponder Help
Specify a custom port range Help
Port: (Optional) To: TCP UDP