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Archive for November, 2018


This is how to get detailed TCP dumps of your network traffic while avoiding your own PuTTY traffic in the output: tcpdump -w trace.dat -s 0 port not 22 tcpdump -r trace.dat -nnvvveXXS > trace.dat.txt Cheers, TK

mount.nfs: mount(2): Permission denied

You're getting this message: [root@mysql01 /]# mount -v nfs03:/n /m mount.nfs: timeout set for Thu Nov  8 23:37:04 2018 mount.nfs: trying text-based options 'vers=4.1,addr=,clientaddr=' mount.nfs: mount(2): No such file or directory mount.nfs: trying text-based options 'addr=' mount.nfs: prog 100003, trying vers=3, prot=6 mount.nfs: trying prog 100003 vers 3 prot TCP port 2049 mount.nfs: prog […]

Postgres SQL HA Cluster ( Quick Start Guide )

We will be keeping the Postgres SQL HA Cluster configuration / setup very very brief using only the bare essentials to get it up and running. Before we begin, we need to plan things out on our CentOS 7.X servers.  First, fill in this table of what your cluster is supposed to look like when […]

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