Hi Kristi,
The problem is usually that a firewall is running that is blocking CA traffic on ports 5064 and 5065.
In your configuration (host and IOC on same subnet) you don’t need to set any EPICS_CA… environment variables.
Mark
From: Tech-talk <tech-talk-bounces at aps.anl.gov>
On Behalf Of Luchini, Kristi L. via Tech-talk
Sent: Monday, February 5, 2024 12:34 PM
To: tech-talk at aps.anl.gov
Subject: No CA connection from server to ioc
Hello,
I’m working on a new facility where EPICS has just been setup, and I’ve booted an EPICS IOC, which is up and running. The IOC a power supply controller which has a cpu. We’re running a diskless boot of linuxRT on this cpu and starting an
EPICS ioc on this remove cpu. I see the ioc running on this remove CPU and I can connect to this IOC, and use dbpr and dbpf to read and set pvs on the ioc. However, from the server, with the new EPICS infrastructure, I don’t have anyCA connection to the IOC,
even though the ioc and server are on the same subnet. I suspect some environment variable is not setup correctly, but I simply can’t see the problem and need some expert help.
Here’s the server env:
[ linac@cpu-li01-mg01]$ printenv
HISTFILESIZE=1000
INPUTRC=/etc/inputrc
FACILITY=linac
EPICS_IOCS=/srv/linac/epics/iocCommon
USER=linac
SSH_CLIENT=128.213.44.124 43770 22
HOSTNAME=cpu-li01-mg01
PACKAGE_TOP=/srv/linac/package
SHLVL=1
IOC_OWNER=linac
HOME=/home/linac
SSH_TTY=/dev/pts/1
IOC_USER=linac
IOC_GROUP=linac
CPU_ARCH=linuxRT-i686
PAGER=/bin/more
IOC_DATA=/data
EPICS_CPU_BIN=/srv/linac/epics/cpuCommon/cpu-li01-mg01/iocSpecificRelease/bin/linuxRT-i686
PS1=[ \u@\h]$
EPICS_CA_REPEATER_PORT=5067
EPICS_CPUS=/srv/linac/epics/cpuCommon
LOGNAME=linac
EPICS_CA_PUT_LOG_ADDR=epics-dev-srv.linac.rpi.edu:7004
TOOLS_DATA=/tools
EPICS_TS_NTP_INET=128.113.3.37
TERM=xterm
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin/X11:/usr/local/bin:/srv/linac/epics/cpuCommon/common:/srv/linac/epics/cpuCommon/facility:/srv/linac/epics/iocCommon/common:/srv/linac/epics/cpuCommon/cpuli01-mg01/iocSpecificRelease/bin/linuxRT-i686
KERNEL_DRIVER_HOME=/srv/linac/package/linuxKernel_Modules
HISTSIZE=1000
DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile
SHELL=/bin/sh
FACILITY_DATA=/srv/linac
FACILITY_ROOT=/srv/linac
CPU_BOOT=/srv/linac/epics/cpuCommon/cpu-li01-mg01
PWD=/home/linac
SSH_CONNECTION=128.213.44.124 43770 128.213.44.68 22
EPICS_CA_SERVER_PORT=5066
EDITOR=/bin/vi
[ linac@cpu-li01-mg01]$ screen -r
[screen is terminating]
[ linac@cpu-li01-mg01]$
[ linac@cpu-li01-mg01]$ exit
Connection to bira-mcor-1.linac.rpi.edu closed.
(base) linac@EPIC-DEV-SRV:~$ printenv
SHELL=/bin/bash
CONFIG_SITE_TOP=/srv/linac/epics/config
EDM=/srv/linac/tools/edm/display
EPICS_MODULES_VER=R7.0.8
STRIP_CONFIGFILE_DIR=/srv/nfs/linac/tools/StripTool/config
EPICS_AR_PORT=7002
CONDA_EXE=/home/linac/anaconda3/bin/conda
_CE_M=
SETUP_SITE_TOP=/srv/linac/epics/setup
IOC_OWNER=linac
EPICS_CA_REPEATER_PORT=5067
EPICS_EXTENSIONS=/srv/linac/epics/extensions
TOOLS_DATA=/srv/nfs/linac/tools
EDMUSERLIB=/srv/linac/epics/extensions/lib/linux-x86_64
IOC=/srv/linac/epics/iocCommon
CPU=/srv/linac/epics/cpuCommon
PYEPICS_LIBCOM=/srv/linac/epics/base/R7.0.8/lib/linux-x86_64/libCom.so
HEP_ENV=
EDMDUMPFILES=/srv/nfs/linac/tools/edm/data
EPICS_TOP=/srv/linac/epics
TFTPBOOT=/srv/tftp
MATLABPATH=
EPICS_CPUS=/srv/linac/epics/cpuCommon
IOC_OWNER_OS=Linux
EPICS_SETUP=/srv/linac/epics/setup
ALHCONFIGFILES=/srv/linac/tools/AlarmConfigTop/global/prod/linac/alh
ENV=
MATLAB_ROOT=
PWD=/home/linac
LOGNAME=linac
XDG_SESSION_TYPE=tty
CONDA_PREFIX=
EPICS_PVA_ADDR_LIST=128.213.44.255 255.255.255.255
EPICS_TS_NTP_INET=128.113.3.37
EPICS_CA_ADDR_LIST=128.213.44.255
FACILITY=linac
EDMPVOBJECTS=/srv/linac/tools/edm/config
EDMFILTERS=/srv/linac/tools/edm/config
EPICS_IOCS=/srv/linac/epics/iocCommon
EDMUSERS=/srv/nfs/linac/tools/edm/display
EPICS_BASE_TOP=/srv/linac/epics/base
MOTD_SHOWN=pam
EPICS_HOST_ARCH=linux-x86_64
HOME=/home/linac
EPICS_CMD_PROTO_PORT=
EPICS_CA_CONN_TMO=30.0
LANG=en_US.UTF-8
PACKAGE_SITE_TOP=/srv/linac/package
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:
IOC_OWNER_SHELL=bash
EPICS_CONFIG=/srv/linac/epics/config
EDMOBJECTS=/srv/linac/tools/edm/config
EDMHELPFILES=/srv/linac/epics/extensions/src/edm/helpFiles
EPICS_IOC_LOG_FILE_COMMAND=
ETC=
CONDA_PROMPT_MODIFIER=(base)
APP=/srv/linac/epics/iocTop
ALHLOGFILES=/srv/nfs/linac/tools/alh/log
EPICS_EXTENSIONS_VER=R1.3.3
EPICS_BASE_HOST_BIN=/home/linac/anaconda3/epics/bin/linux-x86_64
ALARMHANDLER=/srv/linac/tools/AlarmConfigTop/global/prod/linac/alh
EPICS_PVA_SERVER_PORT=5075
FACET_ROOT=/srv/linac
EDMSETUP=/srv/linac/tools/edm/config
FACET_DATA=/srv/nfs/linac
EPICS_MODULES_TOP=/srv/linac/epics/modules/R7.0.8
SSH_CONNECTION=128.213.44.2 52526 128.213.44.124 22
PYEPICS_LIBCA=/srv/linac/epics/base/R7.0.8/lib/linux-x86_64/libca.so
STRIP_FILE_SEARCH_PATH=/srv/nfs/linac/tools/StripTool/data
EPICS_DISPLAY_PATH=/srv/nfs/linac/tools/StripTool/config
EPICS_PVA_AUTO_ADDR_LIST=NO
EPICS_PR_LIST=
LESSCLOSE=/usr/bin/lesspipe %s %s
XDG_SESSION_CLASS=user
HOST_ARCH=Linux
TERM=xterm
MATLAB_VER=
_CE_CONDA=
LESSOPEN=| /usr/bin/lesspipe %s
EPICS_IOC_TOP=/srv/linac/epics/iocTop
USER=linac
EPICS_BASE_VERSION=7.0.5.0
ENVIRONMENT=
EPICS_IOC_LOG_FILE_LIMIT=1000000
CONDA_SHLVL=1
EPICS_SITE_TOP=/srv/linac/epics
PYQTDESIGNERPATH=/home/linac/anaconda3/etc/pydm:
DISPLAY=localhost:12.0
IOC_COMMON=/srv/linac/epics/iocCommon
EPICS_CA_MAX_ARRAY_BYTES=80000000
FACILITY_DATA=/srv/nfs/linac
SHLVL=1
TOOLS=/srv/linac/tools
SCREENBIN=/home/screen/bin
ARCHDATAFILES=/srv/nfs/linac/tools/ArchiveBrowser/data
ARCHCONFIGFILES=/srv/nfs/linac/tools/ArchiveBrowser/config
XDG_SESSION_ID=1538
EDMFILES=/srv/linac/tools/edm/config
LM_LICENSE_FILE=
EDMWEBBROWSER=mozilla
CONDA_PYTHON_EXE=/home/linac/anaconda3/bin/python
LD_LIBRARY_PATH=/srv/linac/epics/extensions/lib/linux-x86_64:/srv/linac/epics/base/R7.0.8/lib/linux-x86_64
EDMDATAFILES=.:..:/srv/nfs/linac/tools/edm/display:/srv/linac/tools/edm/display/mgnt:/srv/linac/tools/edm/display/misc
XDG_RUNTIME_DIR=/run/user/1001
EPICS_IOC_LOG_INET=epics-dev-srv.linac.rpi.edu
IOC_DATA=/srv/nfs/linac/epics/ioc/data
EPICS_BASE_RELEASE=/srv/linac/epics/base/R7.0.8
MATLABDATAFILES=
BASE_MODULE_VERSION=R7.0.8
SSH_CLIENT=128.213.44.2 52526 22
CONDA_DEFAULT_ENV=base
NETSCAPEPATH=firefox
EDMLIBS=/srv/linac/epics/extensions/lib/linux-x86_64
ALHTOP=/srv/linac/tools/AlarmConfigTop
PACKAGE_TOP=/srv/linac/package
IOC_SCREEN=/srv/linac/epics/iocCommon
XDG_DATA_DIRS=/usr/share/gnome:/usr/local/share:/usr/share:/var/lib/snapd/desktop
EPICS_CA_AUTO_ADDR_LIST=NO
PATH=/srv/linac/epics/extensions/bin/linux-x86_64:/srv/linac/epics/base/R7.0.8/bin/linux-x86_64:/srv/linac/tools/script:/home/linac/anaconda3/epics/bin/linux-x86_64:/home/linac/anaconda3/bin:/home/linac/anaconda3/condabin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
EDMACTIONS=/srv/linac/tools/edm/config
EPICS_TS_MIN_WEST=480
EPICS_CA_BEACON_PERIOD=15.0
EDM_DATA=/srv/nfs/linac/tools/edm/data
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1001/bus
EPICS_CA_SERVER_PORT=5066
SSH_TTY=/dev/pts/3
CLUSTER_DIR=
EPICS_BASE=/srv/linac/epics/base/R7.0.8
EPICS_IOC_LOG_PORT=7004
EPICS_PVA_BROADCAST_PORT=5076
EPICS_BASE_VER=R7.0.8
FACILITY_ROOT=/srv/linac
_=/usr/bin/printenv
Here’s the cpu that the ioc is running on:
[ linac@cpu-li01-mg01]$ printenv
HISTFILESIZE=1000
INPUTRC=/etc/inputrc
FACILITY=linac
EPICS_IOCS=/srv/linac/epics/iocCommon
USER=linac
SSH_CLIENT=128.213.44.124 43770 22
HOSTNAME=cpu-li01-mg01
PACKAGE_TOP=/srv/linac/package
SHLVL=1
IOC_OWNER=linac
HOME=/home/linac
SSH_TTY=/dev/pts/1
IOC_USER=linac
IOC_GROUP=linac
CPU_ARCH=linuxRT-i686
PAGER=/bin/more
IOC_DATA=/data
EPICS_CPU_BIN=/srv/linac/epics/cpuCommon/cpu-li01-mg01/iocSpecificRelease/bin/linuxRT-i686
PS1=[ \u@\h]$
EPICS_CA_REPEATER_PORT=5067
EPICS_CPUS=/srv/linac/epics/cpuCommon
LOGNAME=linac
EPICS_CA_PUT_LOG_ADDR=epics-dev-srv.linac.rpi.edu:7004
TOOLS_DATA=/tools
EPICS_TS_NTP_INET=128.113.3.37
TERM=xterm
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin/X11:/usr/local/bin:/srv/linac/epics/cpuCommon/common:/srv/linac/epics/cpuCommon/facility:/srv/linac/epics/iocCommon/common:/srv/linac/epics/cpuCommon/cpu-li01-mg01/iocSpecificRelease/bin/linuxRT-i686
KERNEL_DRIVER_HOME=/srv/linac/package/linuxKernel_Modules
HISTSIZE=1000
DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile
SHELL=/bin/sh
FACILITY_DATA=/srv/linac
FACILITY_ROOT=/srv/linac
CPU_BOOT=/srv/linac/epics/cpuCommon/cpu-li01-mg01
PWD=/home/linac
SSH_CONNECTION=128.213.44.124 43770 128.213.44.68 22
EPICS_CA_SERVER_PORT=5066
EDITOR=/bin/vi
[ linac@cpu-li01-mg01]$
Here’s the ioc:
[ linac@cpu-li01-mg01]$ screen -r
IOC=sioc-li01-mg01
ST_CMD_CPU=st.cmd
BOOTIF=01-00-07-32-52-0d-92
FACILITY_DATA=/srv/linac
initrd=rootfs.ext2
CPU_BOOT=/srv/linac/epics/iocCommon/cpu-li01-mg01
FACILITY_ROOT=/srv/linac
PWD=/srv/linac/epics/iocTop/Magnet/Magnet-rpi
IOC_EXECUTABLE=/srv/linac/epics/iocCommon/sioc-li01-mg01/iocSpecificRelease/iocBoot/linac/sioc-li01-mg01/../../../bin/linuxRT-i686/mgntSoft
EPICS_CA_SERVER_PORT=5066
ARCH=linuxRT-i686
EPICS_VERSION_MAJOR=7
EPICS_VERSION_MIDDLE=0
EPICS_VERSION_MINOR=8
EPICS_VERSION_PATCH=0
EPICS_VERSION_SNAPSHOT=
EPICS_VERSION_SITE=
EPICS_VERSION_SHORT=7.0.8
EPICS_VERSION_FULL=7.0.8
IOCSH_STARTUP_SCRIPT=/srv/linac/epics/iocCommon/sioc-li01-mg01/startup.cmd
EPICS_CA_ADDR_LIST=128.213.44.255:5068 128.213.44.124
EPICS_IOC_LOG_PORT=7004
EPICS_IOC_LOG_INET=epics-dev-srv.linac.rpi.edu
ACF_FILE=/srv/linac/epics/iocCommon/facility/caSecurity.acf
ACF_INIT=/srv/linac/epics/iocCommon/common/init_acf.cmd.soft
LOG_INIT=/srv/linac/epics/iocCommon/common/init_log.cmd.soft
LOCATION=KA21-0126
TOP=/srv/linac/epics/iocTop/Magnet/Magnet-rpi
EPICS_SITE_TOP=/srv/linac/epics
BASE_SITE_TOP=/srv/linac/epics/base
EPICS_MODULES=/srv/linac/epics/modules/R7.0.8
IOC_SITE_TOP=/srv/linac/epics/iocTop
TOOLS_SITE_TOP=/srv/linac/tools
ALARM_CONFIGS_TOP=/srv/linac/tools/AlarmConfigsTop
IOCADMIN=/srv/linac/epics/modules/R7.0.8/iocAdmin/R3.1.16-1.3.2
SNCSEQ=/srv/linac/epics/modules/R7.0.8/seq/R2.2.4-1.2
AUTOSAVE=/srv/linac/epics/modules/R7.0.8/autosave/R5.11
DBRESTORE=/srv/linac/epics/modules/R7.0.8/restore/R2.3.2
CAPUTLOG=/srv/linac/epics/modules/R7.0.8/caPutLog/R3.5-1.0.0
SSUBRECORD=/srv/linac/epics/modules/R7.0.8/sSubRecord/R3.0.4
MISCUTILS=/srv/linac/epics/modules/R7.0.8/miscUtils/R2.2.5
DEVLIB2=/srv/linac/epics/modules/R7.0.8/devlib2/R2.10-0.1.0
DEVBUSMAPPED=/srv/linac/epics/modules/R7.0.8/devBusMapped/R3.2.3
CALC=/srv/linac/epics/modules/R7.0.8/calc/R3.7.5
DRVPCIMCOR=/srv/linac/epics/modules/R7.0.8/drvPciMcor/R1.2.1
DRVUIOPCIGEN=/srv/linac/epics/modules/R7.0.8/drvUioPciGen/R1.1.4
ASYN=/srv/linac/epics/modules/R7.0.8/asyn/R4.39
STREAMDEVICE=/srv/linac/epics/modules/R7.0.8/streamdevice/R2.8.24
SSCAN=/srv/linac/epics/modules/R7.0.8/sscan/R2.11.6
MGNT=/srv/linac/epics/iocTop/Magnet/Magnet-rpi
EPICS_BASE=/srv/linac/epics/base/R7.0.8
IOC_BOOT=/srv/linac/epics/iocCommon/sioc-li01-mg01/iocSpecificRelease/iocBoot/linac/sioc-li01-mg01
ENGINEER=Kristi Luchini
STARTUP=/srv/linac/epics/iocCommon/sioc-li01-mg01
SUBSYS=mgnt
STREAM_PROTOCOL_PATH=/srv/linac/epics/iocTop/Magnet/Magnet-rpi/db
IOC_RESTORE=/data/sioc-li01-mg01/restore
RSRV_SERVER_PORT=5066
PVAS_SERVER_PORT=5075
IOCSH_PS1=sioc-li01-mg01>
LINES=63
COLUMNS=197