Posts

Showing posts with the label kernel bits

Redis user permissions (ACL) and python connection

-
 Recently, I was working on setting up a redis cluster along with separate users for readwrite and readonly. I setup the readonly user using the below privileges (ACLs):   user redisreadonly on >mySuperSecretPassword ~* resetchannels -@all +@read +ping +asking   Once this is setup, I wrote a simple program in python to connect to the redis cluster using the readonly credentials and print the number of keys.   #!/usr/bin/env python3 """ pip3 install redis """ from redis.cluster import RedisCluster, ClusterNode # ─────── Cluster connection ─────── startup_nodes = [ ClusterNode("redis_host_1", 6379), ClusterNode("redis_host_2", 6379), ClusterNode("redis_host_3", 6379) ] rc = RedisCluster(startup_nodes=startup_nodes,decode_responses=True,username='redisreadonly',password='mySuperSecretPassw...
Post a Comment
Read more

Find OS Kernel Bit in UNIX - Ready reckoner

-
Listed below is the ready reckoner for finding out the kernel bit information for Linux, Solaris, HP-UX and IBM AIX, which are the most commonly used OS for Oracle Apps. Linux getconf LONG_BIT or uname -m (works for x86-64 bit servers. Not tested it in 32 bit servers) eg: $ getconf LONG_BIT 64 $ uname -m x86_64 $ Sun SPARC Solaris isainfo -kv eg: $ isainfo -kv 64-bit sparcv9 kernel modules $ HP-UX getconf KERNEL_BITS eg: $ getconf KERNEL_BITS 64 $ IBM AIX bootinfo -K Not tested as I currently do not have any AIX servers to test on! Note 1 : To find whether a given executable is 32-bit or 64-bit, use the command file <executable_name> eg: $ file oracle oracle: ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped $ file tnslsnr tnslsnr: ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped $ file sqlplus sqlplus: ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped Note 2 : You can install a 32-bit executab...
Post a Comment
Read more

Popular posts from this blog

EXCEPTION_ACCESS_VIOLATION in Jinitiator and IE crashes

-
The Environment Apps Version : 11.5.10.2 Jinitiator Version : 1.3.1.26 Internet Explorer Version : 6 The Issue One of our end users was receiving a very strange error while using jinitiator. The Internet explorer window would crash (close by itself) after creating a file HS_ERR_PID .log on the desktop, where #### stands for the Process ID of the f60webmx session. This error is intermittent and not easily reproducible. Moreover, the user would have to redo his/her work and hence this issue was turning out to be very vexing indeed. The error log is as below: An unexpected exception has been detected in native code outside the VM. Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6D043D1AFunction name=Java_sun_java2d_loops_DefaultComponent_IntIsomorphicCopy Library=C:\Program Files\Oracle\JInitiator 1.3.1.26\bin\awt.dll Current Java thread: at sun.java2d.loops.DefaultComponent.IntIsomorphicCopy(Native Method) at sun.java2d.loops.IntRgbToIntRgb.OpaqueBlit(Unknown Source) at ...
Read more

Version of mod_security with EBS 11.5.10.2

-
Though it was a bit tough to find out the version of Mod_security that is shipped with E-Business Suite 11.5.10.2, I finally managed to do it, thanks to Metalink Fora! The version that comes with eBS 11.5.10.2 is 1.8.4 . Below is how you find out the version of mod_security shipped with your version of eBS. $ strings $IAS_ORACLE_HOME/Apache/Apache/libexec/mod_security.so | grep mod_security/
Read more

Read a file and extract specific lines using Native Ansible Modules

-
I never realised that reading a file on a remote host and extracting specific lines from that file would be such an arduous task. As part of one of my projects, I had this requirement and without using "cat" or other shell utilities, it was quite cumbersome to read and extract the information that I was looking for. Read on to find out how it can be done using Ansible native commands. Note that I have suggested only one out of a possible many methods. Feel free to explore yourself and update the comments here! REMOTE FILE CONTENTS $ cat /tmp/IP_and_hostnames.txt $ cat /tmp/IP_and_hostnames.txt 192.168.230.165:example-host-1.example.com 192.168.230.166:example-host-2.example.com 192.168.230.167:example-host-3.example.com 192.168.230.175:example-host-1-vip.example.com 192.168.230.176:example-host-2-vip.example.com 192.168.230.177:example-host-3-vip.example.com 192.168.230.185:example-host-1-priv.example.com 192.168.230.186:e...
Read more