[squid-users] squid 4.8 cannot connect to Skype for business

Erick Perez - Quadrian Enterprises eperez at quadrianweb.com
Fri Jan 24 17:28:59 UTC 2020


Perhaps, this additional info is relevant:

squid.conf:
# Squid is configured NOT to cache and only works as allow/deny networks
for browsing the internet.
cache deny all
acl SSL_ports port 443
acl SSL_ports port 8441
acl SSL_ports port 8442
acl SSL_ports port 9090
acl SSL_ports port 10000
http_port 10.230.5.71:8080
tcp_outgoing_address 10.230.5.73
via off
forwarded_for delete
follow_x_forwarded_for allow localhost
follow_x_forwarded_for deny all
request_header_access From deny all
request_header_access Server deny all
request_header_access WWW-Authenticate deny all
request_header_access Link deny all
request_header_access Cache-Control deny all
request_header_access Proxy-Connection deny all
request_header_access X-Cache deny all
request_header_access X-Cache-Lookup deny all
request_header_access Via deny all
request_header_access X-Forwarded-For deny all
request_header_access Pragma deny all
request_header_access Keep-Alive deny all
httpd_suppress_version_string on

On Fri, Jan 24, 2020 at 10:41 AM Erick Perez - Quadrian Enterprises <
eperez at quadrianweb.com> wrote:

> good day to all,
> my windows clients can connect successfully to regular skype, but cannot
> connect to skype for business. With the included extract of client machine
> 10.231.0.20 is there anything that can tell me why it is not connecting?
>
> ip  squid :  10.230.5.71
> tested client machine: 10.231.0.20
> skype for business: 16.0.12325.20280 32 bit
>
> *********
> squid -v:
> [root at s03-prxy squid]# squid -v
> Squid Cache: Version 4.8
> Service Name: squid
>
> This binary uses OpenSSL 1.0.2k-fips  26 Jan 2017. For legal restrictions
> on distribution see https://www.openssl.org/source/license.html
>
> configure options:  '--build=x86_64-redhat-linux-gnu'
> '--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr'
> '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin'
> '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include'
> '--libdir=/usr/lib64' '--libexecdir=/usr/libexec'
> '--sharedstatedir=/var/lib' '--mandir=/usr/share/man'
> '--infodir=/usr/share/info' '--exec_prefix=/usr'
> '--libexecdir=/usr/lib64/squid' '--localstatedir=/var'
> '--datadir=/usr/share/squid' '--sysconfdir=/etc/squid'
> '--with-logdir=/var/log/squid' '--with-pidfile=/var/run/squid.pid'
> '--disable-dependency-tracking' '--enable-follow-x-forwarded-for'
> '--enable-auth'
> '--enable-auth-basic=DB,LDAP,NCSA,NIS,PAM,POP3,RADIUS,SASL,SMB,getpwnam,fake'
> '--enable-auth-ntlm=fake' '--enable-auth-digest=file,LDAP,eDirectory'
> '--enable-auth-negotiate=kerberos,wrapper'
> '--enable-external-acl-helpers=wbinfo_group,kerberos_ldap_group,LDAP_group,delayer,file_userip,SQL_session,unix_group,session,time_quota'
> '--enable-cache-digests' '--enable-cachemgr-hostname=localhost'
> '--enable-delay-pools' '--enable-epoll' '--enable-icap-client'
> '--enable-ident-lookups' '--enable-linux-netfilter'
> '--enable-removal-policies=heap,lru' '--enable-snmp'
> '--enable-storeio=aufs,diskd,ufs,rock' '--enable-wccpv2' '--enable-esi'
> '--enable-security-cert-generators' '--enable-security-cert-validators'
> '--enable-icmp' '--with-aio' '--with-default-user=squid'
> '--with-filedescriptors=16384' '--with-dl' '--with-openssl'
> '--enable-ssl-crtd' '--with-pthreads' '--with-included-ltdl'
> '--disable-arch-native' '--without-nettle'
> 'build_alias=x86_64-redhat-linux-gnu' 'host_alias=x86_64-redhat-linux-gnu'
> 'CFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches
> -m64 -mtune=generic' 'LDFLAGS=-Wl,-z,relro ' 'CXXFLAGS=-O2 -g -pipe -Wall
> -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong
> --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic
> -fPIC' 'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'
> --enable-ltdl-convenience
> [root at s03-prxy squid]#
> *****************
>
> access.log extract:
> [root at s03-prxy squid]# tail -f /var/log/squid/access.log | grep
> 10.231.0.20
> 1579879519.778   3539 10.231.0.200 TCP_TUNNEL/200 4974 CONNECT
> clients1.google.com:443 - HIER_DIRECT/172.217.15.206 -
> 1579879519.779   4340 10.231.0.200 TCP_TUNNEL/200 3490 CONNECT
> www.google.com:443 - HIER_DIRECT/172.217.8.132 -
> 1579879524.530 114397 10.231.0.200 TCP_TUNNEL_ABORTED/200 2051 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 34.218.169.26 -
> 1579879541.929 6131038 10.231.0.20 TCP_TUNNEL_ABORTED/200 1544733 CONNECT
> outlook.office365.com:443 - HIER_DIRECT/52.96.87.194 -
> 1579879541.929 4712050 10.231.0.20 TCP_TUNNEL_ABORTED/200 226325 CONNECT
> outlook.office365.com:443 - HIER_DIRECT/40.97.190.2 -
> 1579879541.944 126301 10.231.0.20 TCP_TUNNEL_ABORTED/200 27260 CONNECT
> outlook.office365.com:443 - HIER_DIRECT/52.96.33.82 -
> 1579879541.944 862124 10.231.0.20 TCP_TUNNEL_ABORTED/200 1061225 CONNECT
> outlook.office365.com:443 - HIER_DIRECT/52.96.88.18 -
> 1579879546.091    106 10.231.0.20 TCP_TUNNEL_ABORTED/200 4357 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879546.925    817 10.231.0.20 TCP_TUNNEL/200 17155 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879568.080     11 10.231.0.20 TCP_TUNNEL_ABORTED/200 188 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879568.432    350 10.231.0.20 TCP_TUNNEL/200 7353 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879571.803 121672 10.231.0.20 TCP_TUNNEL/200 14037 CONNECT
> login.windows.net:443 - HIER_DIRECT/40.126.3.35 -
> 1579879576.554     69 10.231.0.20 TCP_MISS/304 449 GET
> http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?
> - HIER_DIRECT/8.252.64.254 -
> 1579879576.645     69 10.231.0.20 TCP_MISS/304 449 GET
> http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?
> - HIER_DIRECT/8.252.64.254 -
> 1579879579.790   5275 10.231.0.200 TCP_TUNNEL/200 4088 CONNECT
> safebrowsing.googleapis.com:443 - HIER_DIRECT/172.217.8.74 -
> 1579879580.975     72 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879580.976     72 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879580.976     72 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879580.976     72 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879581.049     72 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879581.050     71 10.231.0.202 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879584.088  68045 10.231.0.20 TCP_TUNNEL/200 5636 CONNECT
> config.edge.skype.com:443 - HIER_DIRECT/13.107.3.128 -
> 1579879586.050  14003 10.231.0.200 TCP_TUNNEL/200 7371 CONNECT
> pssgui.aaaa.travel.airservices.svcs.entsvcs.com:443 - HIER_DIRECT/
> 146.123.20.137 -
> 1579879589.994     48 10.231.0.20 TCP_MISS/200 1978 GET
> http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8sEMlbBsCTf7jUSfg%2BhWk%3D
> - HIER_DIRECT/72.21.91.29 application/ocsp-response
> 1579879590.031    455 10.231.0.20 TCP_TUNNEL_ABORTED/200 6298 CONNECT
> sipfed.online.lync.com:443 - HIER_DIRECT/52.112.65.75 -
> 1579879590.596    563 10.231.0.20 TCP_TUNNEL/200 7556 CONNECT
> sipfed.online.lync.com:443 - HIER_DIRECT/52.112.65.75 -
> 1579879593.377 118087 10.231.0.20 TCP_TUNNEL_ABORTED/200 1987 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879611.227     69 10.231.0.202 TCP_MISS/304 449 GET
> http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?
> - HIER_DIRECT/8.252.64.254 -
> 1579879611.312     69 10.231.0.202 TCP_MISS/304 259 GET
> http://crl.pki.goog/GTS1O1.crl - HIER_DIRECT/172.217.3.131 -
> 1579879612.106    336 10.231.0.20 TCP_TUNNEL_ABORTED/200 6298 CONNECT
> sipfed0a.online.lync.com:443 - HIER_DIRECT/52.112.64.11 -
> 1579879612.585    477 10.231.0.20 TCP_TUNNEL/200 7700 CONNECT
> sipfed0a.online.lync.com:443 - HIER_DIRECT/52.112.64.11 -
> 1579879613.465     48 10.231.0.20 TCP_MISS/200 1978 GET
> http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAiIzVJfGSRETRSlgpHeuVI%3D
> - HIER_DIRECT/72.21.91.29 application/ocsp-response
> 1579879613.729    190 10.231.0.20 TCP_MISS/200 2597 GET
> http://ocsp.msocsp.com/MFQwUjBQME4wTDAJBgUrDgMCGgUABBQphfxhPb4vsBIPXkIOTJ7D1Z79fAQUCP4ln3TqhwTCvLuOqDhfM8bRbGUCEy0ABoRa5qu8lnR3dcQAAAAGhFo%3D
> - HIER_DIRECT/104.18.24.243 application/ocsp-response
> 1579879615.429     73 10.231.0.20 TCP_MISS/200 2597 GET
> http://ocsp.msocsp.com/MFQwUjBQME4wTDAJBgUrDgMCGgUABBQirwAcgHViBybgyJMa7KdCHDISOgQUenuMwc%2FnoMoc1Gv6%2B%2BEzww8aop0CExYAAvvgLxYAucV3A0IAAAAC%2B%2BA%3D
> - HIER_DIRECT/104.18.24.243 application/ocsp-response
> 1579879615.601    510 10.231.0.20 TCP_TUNNEL_ABORTED/200 7961 CONNECT
> login.microsoftonline.com:443 - HIER_DIRECT/20.190.131.98 -
> 1579879615.769    151 10.231.0.20 TCP_TUNNEL/200 39 CONNECT
> fs.aaaaair.com:443 - HIER_DIRECT/94.188.209.80 -
> 1579879615.921    149 10.231.0.20 TCP_TUNNEL/200 39 CONNECT
> fs.aaaaair.com:443 - HIER_DIRECT/94.188.209.80 -
> 1579879616.936 117994 10.231.0.202 TCP_TUNNEL_ABORTED/200 1987 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879627.471  10590 10.231.0.200 TCP_TUNNEL/200 2135 CONNECT
> pssgui.aaaa.travel.airservices.svcs.entsvcs.com:443 - HIER_DIRECT/
> 146.123.20.137 -
> 1579879629.024  15981 10.231.0.20 TCP_TUNNEL_ABORTED/200 35500 CONNECT
> webdir0a.online.lync.com:443 - HIER_DIRECT/52.112.64.14 -
> 1579879639.086      0 10.231.0.20 NONE/503 0 CONNECT
> lyncdiscoverinternal.aaaaair.com:443 - HIER_NONE/- -
> 1579879639.087      0 10.231.0.20 TCP_MISS/503 4569 GET
> http://lyncdiscoverinternal.aaaaair.com/? - HIER_NONE/- text/html
> 1579879639.211    114 10.231.0.20 TCP_MISS/200 789 GET
> http://lyncdiscover.aaaaair.com/? - HIER_DIRECT/200.46.240.179
> application/vnd.microsoft.rtc.autodiscover+xml
> 1579879644.031  29867 10.231.0.20 TCP_TUNNEL_ABORTED/200 23372 CONNECT
> webdir0a.online.lync.com:443 - HIER_DIRECT/52.112.64.14 -
> 1579879644.529 114376 10.231.0.200 TCP_TUNNEL_ABORTED/200 1987 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879661.924 451876 10.231.0.20 TCP_TUNNEL_ABORTED/200 8663 CONNECT
> outlook.office365.com:443 - HIER_DIRECT/52.96.33.82 -
> 1579879665.721  66079 10.231.0.202 TCP_TUNNEL/200 6277 CONNECT
> 4.sophosxl.net:443 - HIER_DIRECT/3.227.84.245 -
> 1579879675.921     72 10.231.0.202 TCP_MISS/200 256 GET
> http://http.00.a.sophosxl.net/V3/01/cynl.tbbtyr.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879676.722  65561 10.231.0.202 TCP_TUNNEL/200 7269 CONNECT
> 4.sophosxl.net:443 - HIER_DIRECT/3.227.84.245 -
> 1579879681.592  13173 10.231.0.200 TCP_TUNNEL/200 6761 CONNECT
> pssgui.aaaa.travel.airservices.svcs.entsvcs.com:443 - HIER_DIRECT/
> 146.123.20.137 -
> 1579879695.487     15 10.231.0.20 TCP_TUNNEL_ABORTED/200 188 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879695.599    110 10.231.0.20 TCP_TUNNEL/200 17155 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879699.006  59919 10.231.0.20 NONE/503 0 CONNECT
> lyncdiscover.aaaaair.com:443 - HIER_NONE/- -
> 1579879699.006  59714 10.231.0.20 NONE/503 0 CONNECT abs.aaaaair.com:443
> - HIER_NONE/- -
> 1579879705.254 212866 10.231.0.20 TCP_TUNNEL/200 10722 CONNECT
> 4.sophosxl.net:443 - HIER_DIRECT/34.234.127.160 -
> 1579879705.255 209910 10.231.0.20 TCP_TUNNEL/200 12951 CONNECT
> 4.sophosxl.net:443 - HIER_DIRECT/34.234.127.160 -
> 1579879713.373 118074 10.231.0.20 TCP_TUNNEL_ABORTED/200 605 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879716.652     11 10.231.0.20 TCP_TUNNEL_ABORTED/200 188 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879716.713     59 10.231.0.20 TCP_TUNNEL/200 7401 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879724.032     72 10.231.0.200 TCP_MISS/200 257 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.pbcnnve.pbz.m/ - HIER_DIRECT/
> 3.222.35.82 -
> 1579879734.719  66296 10.231.0.200 TCP_TUNNEL/200 6101 CONNECT
> 4.sophosxl.net:443 - HIER_DIRECT/3.227.84.245 -
> 1579879736.935 117987 10.231.0.202 TCP_TUNNEL_ABORTED/200 605 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879737.777     11 10.231.0.20 TCP_TUNNEL_ABORTED/200 188 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879737.940    161 10.231.0.20 TCP_TUNNEL/200 7353 CONNECT
> sip.aaaaair.com:443 - HIER_DIRECT/200.46.240.195 -
> 1579879754.531     68 10.231.0.200 TCP_MISS/304 259 GET
> http://crl.pki.goog/gsr2/gsr2.crl - HIER_DIRECT/172.217.3.131 -
> 1579879759.398    321 10.231.0.20 TCP_TUNNEL_ABORTED/200 6298 CONNECT
> sipfed.online.lync.com:443 - HIER_DIRECT/52.112.65.75 -
> 1579879759.922    522 10.231.0.20 TCP_TUNNEL/200 7556 CONNECT
> sipfed.online.lync.com:443 - HIER_DIRECT/52.112.65.75 -
> 1579879761.075  16921 10.231.0.200 TCP_TUNNEL/200 7350 CONNECT
> pssgui.aaaa.travel.airservices.svcs.entsvcs.com:443 - HIER_DIRECT/
> 146.123.20.137 -
> 1579879764.529 114383 10.231.0.200 TCP_TUNNEL_ABORTED/200 605 CONNECT
> dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com:443 - HIER_DIRECT/
> 52.10.0.129 -
> 1579879778.623   8111 10.231.0.200 TCP_TUNNEL/200 774 CONNECT
> pssgui.aaaa.travel.airservices.svcs.entsvcs.com:443 - HIER_DIRECT/
> 146.123.20.137 -
> 1579879781.400    324 10.231.0.20 TCP_TUNNEL_ABORTED/200 6298 CONNECT
> sipfed0a.online.lync.com:443 - HIER_DIRECT/52.112.64.11 -
> 1579879781.883    481 10.231.0.20 TCP_TUNNEL/200 7700 CONNECT
> sipfed0a.online.lync.com:443 - HIER_DIRECT/52.112.64.11 -
> 1579879782.075    142 10.231.0.20 TCP_TUNNEL/200 39 CONNECT
> fs.aaaaair.com:443 - HIER_DIRECT/94.188.209.80 -
> 1579879782.225    146 10.231.0.20 TCP_TUNNEL/200 39 CONNECT
> fs.aaaaair.com:443 - HIER_DIRECT/94.188.209.80 -
> 1579879800.250      0 10.231.0.20 NONE/503 0 CONNECT
> lyncdiscoverinternal.aaaaair.com:443 - HIER_NONE/- -
> 1579879800.251      0 10.231.0.20 TCP_MISS/503 4569 GET
> http://lyncdiscoverinternal.aaaaair.com/? - HIER_NONE/- text/html
> 1579879800.256      5 10.231.0.20 TCP_MISS/200 789 GET
> http://lyncdiscover.aaaaair.com/? - HIER_DIRECT/200.46.240.179
> application/vnd.microsoft.rtc.autodiscover+xml
> 1579879801.905     72 10.231.0.200 TCP_MISS/200 262 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.tbbtyr.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879808.540     72 10.231.0.20 TCP_MISS/200 262 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.tbbtyr.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879809.335     72 10.231.0.20 TCP_MISS/200 367 GET
> http://http.00.a.sophosxl.net/V3/01/jjj.tfgngvp.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879809.400     72 10.231.0.20 TCP_MISS/200 256 GET
> http://http.00.a.sophosxl.net/V3/01/sbagf.tbbtyrncvf.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879809.763     72 10.231.0.20 TCP_MISS/200 252 GET
> http://http.00.a.sophosxl.net/V3/01/btf.tbbtyr.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879809.835   8004 10.231.0.200 TCP_TUNNEL/200 1205 CONNECT
> www.google.com:443 - HIER_DIRECT/172.217.8.132 -
> 1579879810.279     72 10.231.0.20 TCP_MISS/200 256 GET
> http://http.00.a.sophosxl.net/V3/01/rapelcgrq-goa0.tfgngvp.pbz.m/ -
> HIER_DIRECT/3.225.217.224 -
> 1579879814.061     72 10.231.0.20 TCP_MISS/200 252 GET
> http://http.00.a.sophosxl.net/V3/01/prageny.fbcubf.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> 1579879814.061     72 10.231.0.20 TCP_MISS/200 252 GET
> http://http.00.a.sophosxl.net/V3/01/prageny.fbcubf.pbz.m/ - HIER_DIRECT/
> 3.225.217.224 -
> ^C
> [root at s03-prxy squid]#
>
> --
>
> ---------------------
> Erick Perez
> Quadrian Enterprises S.A. - Panama, Republica de Panama
> Skype chat: eaperezh
> WhatsApp IM: +507-6675-5083
> ---------------------
>


-- 

---------------------
Erick Perez
Quadrian Enterprises S.A. - Panama, Republica de Panama
Skype chat: eaperezh
WhatsApp IM: +507-6675-5083
---------------------
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