Ports extracting on old freebsd (7.2 my), xz inappropriate file type or format

Before starting compiling libarchive, i put spawn.h to /usr/include, because in my system it doesn't existed.

CC     libarchive/filter_fork_posix.lo
libarchive/filter_fork_posix.c:61:21: error: spawn.h: No such file or directory
*** Error code 1

Stop in /usr/ports/archivers/libarchive/work/libarchive-3.1.2.
*** Error code 1

# cd /usr/include/
# wget https://gist.github.com/OmIkRoNiXz/5625492/raw/71b8edba74636f513a0e301a2da12caa2d68f417/spawn.h

Now i can install libarchive.

# cd /usr/ports/archivers/libarchive 
# make install clean

# ln -sf /usr/local/bin/bsdtar /usr/bin/tar

And it all!

Replacing degraded disk in RAID1 3ware LSI

server# tw_cli

//server> /c0 show

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    DEGRADED       -       -       -       465.651   OFF    OFF

VPort Status         Unit Size      Type  Phy Encl-Slot    Model
------------------------------------------------------------------------------
p0    DEGRADED       u0   465.76 GB SATA  0   -            ST3500320NS
p1    OK             u0   465.76 GB SATA  1   -            WDC WD5003ABYX-01WE


/* removeing degraded disk */
//server> /c0/p0 remove
Removing /c0/p0 will take the disk offline.
Do you want to continue ? Y|N [N]: Y
Removing port /c0/p0 ... Done.


//server> /c0 show

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    DEGRADED       -       -       -       465.651   OFF    OFF

VPort Status         Unit Size      Type  Phy Encl-Slot    Model
------------------------------------------------------------------------------
p1    OK             u0   465.76 GB SATA  1   -            WDC WD5003ABYX-01WE


/* physically insert new hard disk and scan for this */
//server> /c0 rescan
//server> /c0 show

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    DEGRADED       -       -       -       465.651   OFF    OFF

VPort Status         Unit Size      Type  Phy Encl-Slot    Model
------------------------------------------------------------------------------
p0    OK             -    465.76 GB SATA  0   -            WDC WD5003ABYX-01WE
p1    OK             u0   465.76 GB SATA  1   -            WDC WD5003ABYX-01WE


/* start rebuilding array */
//server> maint rebuild c0 u0 p0
Sending rebuild start request to /c0/u0 on 1 disk(s) [0] ... Done.



/* display status of rebuilding */
//server> info c0

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    REBUILDING     5%      -       -       465.651   OFF    OFF

VPort Status         Unit Size      Type  Phy Encl-Slot    Model
------------------------------------------------------------------------------
p0    DEGRADED       u0   465.76 GB SATA  0   -            WDC WD5003ABYX-01WE
p1    OK             u0   465.76 GB SATA  1   -            WDC WD5003ABYX-01WE

Some useful linux/*nix cmds

Send cmd to screen (echo -ne '\015' emulates pressing the Enter key)

# screen -S sessionname -p 0 -X stuff 'command'`echo -ne '\015'`

Search file in packages (debian like distros)

# dpkg -S /etc/foo/foo.conf  

Check port availability

# nc -znvvw 3 192.168.1.100 80

Check availability of port range

# nc -znvvw 3 192.168.1.100 8080-8081

Row count in files with *.php extension

# find /root/* -type f -name "*.php" -exec wc -l {} + ;

Find files larger than 100MB

# find . -size +100M -exec du -h {} \;

SSH port forwarding example for SQL Server (remote-server - which have access to SQL Server by Local address 192.168.1.50, then we can connect to localhost:1433)

# ssh -f remote-server -L127.0.0.1:1433:192.168.1.50:1433 -N

FreeBSD

Get S.M.A.R.T for 3ware raided HDDs (disks starts from 0, 1, 2...)

# smartctl -a -d 3ware,0 /dev/twa0

Renew sendmail aliases

# cd /etc/mail
# make
# newaliases