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Can't connect to SSL servers on WSL #910

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opened 2026-10-05 04:52:20 +02:00 by adam · 1 comment
adam commented 2026-10-05 04:52:20 +02:00
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Ubuntu 18.04 WSL, installed znc from apt. (did try nightly build as well, same issue)

Adding Freenode (might be some other network, same issue) SSL server the following way:

<Listener l>
        Port = 48446
        IPv4 = true
        IPv6 = true
        SSL = false
</Listener>
LoadModule = webadmin

<User zncweb1>
        Pass       = sha256#544d4b0c86630ee21e48908343d425760a54b4abde8e82ca7be625c31510e61f#jsgnox!jGT:wZ.mHww;O#
        Admin      = true
        Nick       = zncweb1
        AltNick    = zncweb1_
        Ident      = zncweb1
        RealName   = zncweb1
        LoadModule = chansaver
        LoadModule = controlpanel

        <Network freenode>
                LoadModule = simple_away
                Server     = chat.freenode.net +6697
        </Network>
</User>

ZNC -D shows the following:

justas@WT02:~/.znc/configs$ znc -D
[ .. ] Checking for list of available modules...
[ >> ] ok
[ .. ] Opening config [/home/justas/.znc/configs/znc.conf]...
[ >> ] ok
[ .. ] Loading global module [webadmin]...
[ >> ] [/usr/lib/znc/webadmin.so]
[ .. ] Binding to port [48446]...
[ >> ] ok
[ ** ] Loading user [zncweb1]
[ ** ] Loading network [freenode]
[ .. ] Loading network module [simple_away]...
[ >> ] [/usr/lib/znc/simple_away.so]
[ .. ] Adding server [chat.freenode.net +6697 ]...
[ >> ] ok
[ .. ] Loading user module [chansaver]...
[ >> ] ok
[ .. ] Loading user module [controlpanel]...
[ >> ] ok
[ ** ] Staying open for debugging [pid: 1513]
[ ** ] ZNC 1.6.6+deb1ubuntu0.1 - http://znc.in
[2019-06-05 17:44:32.482940] Connecting user/network [zncweb1/freenode]
[2019-06-05 17:44:32.484645] TDNS: initiating resolving of [chat.freenode.net] and bindhost [] for [IRC::zncweb1::freenode]
[2019-06-05 17:44:32.485390] ConnectQueueTimer done
[2019-06-05 17:44:32.500198] TDNS: IRC::zncweb1::freenode, connecting to [2001:6b0:e:2a18::119] using bindhost []
[2019-06-05 17:44:32.502971] IRC::zncweb1::freenode == SockError(32 Broken pipe)

strace shows something about missing cert (there's indeed no such file, but I'm not sure it has to be there at all)

connect(7, {sa_family=AF_INET6, sin6_port=htons(6697), inet_pton(AF_INET6, "2001:708:40:2001::f5ee:d0de", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, 28) = -1 EINPROGRESS (Operation now in progress)
getpid()                                = 1538
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
gettimeofday({tv_sec=1559746006, tv_usec=715278}, NULL) = 0
getpid()                                = 1538
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
gettimeofday({tv_sec=1559746006, tv_usec=717294}, NULL) = 0
getpid()                                = 1538
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
gettimeofday({tv_sec=1559746006, tv_usec=721976}, NULL) = 0
openat(AT_FDCWD, "/usr/lib/ssl/cert.pem", O_RDONLY) = -1 ENOENT (No such file or directory)
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
getpid()                                = 1538
time(NULL)                              = 1559746006 (2019-06-05T17:46:46+0300)
gettimeofday({tv_sec=1559746006, tv_usec=726129}, NULL) = 0
write(7, "\26\3\1\0\351\1\0\0\345\3\3\236_\213\242\24\203\234\215\345\332\vt\2142\241\3R\302\242v\204"..., 238) = -1 EPIPE (Broken pipe)
gettimeofday({tv_sec=1559746006, tv_usec=728158}, NULL) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1073, ...}) = 0
write(1, "[2019-06-05 17:46:46.728158] IRC"..., 81[2019-06-05 17:46:46.728158] IRC::zncweb1::freenode == SockError(32 Broken pipe)
) = 81
gettimeofday({tv_sec=1559746006, tv_usec=734357}, NULL) = 0
close(7)                                = 0
poll([{fd=3, events=POLLIN}, {fd=6, events=POLLIN}], 2, 100) = 0 (Timeout)
gettimeofday({tv_sec=1559746006, tv_usec=837623}, NULL) = 0
gettimeofday({tv_sec=1559746006, tv_usec=838467}, NULL) = 0
gettimeofday({tv_sec=1559746006, tv_usec=839319}, NULL) = 0
gettimeofday({tv_sec=1559746006, tv_usec=840143}, NULL) = 0
poll([{fd=3, events=POLLIN}, {fd=6, events=POLLIN}], 2, 4998) = 0 (Timeout)

Another user on #znc freenode said that it works fine for him on WSL. For me the problem was there even on a different - Debian WSL.

Ubuntu 18.04 WSL, installed znc from apt. (did try nightly build as well, same issue) Adding Freenode (might be some other network, same issue) SSL server the following way: ``` <Listener l> Port = 48446 IPv4 = true IPv6 = true SSL = false </Listener> LoadModule = webadmin <User zncweb1> Pass = sha256#544d4b0c86630ee21e48908343d425760a54b4abde8e82ca7be625c31510e61f#jsgnox!jGT:wZ.mHww;O# Admin = true Nick = zncweb1 AltNick = zncweb1_ Ident = zncweb1 RealName = zncweb1 LoadModule = chansaver LoadModule = controlpanel <Network freenode> LoadModule = simple_away Server = chat.freenode.net +6697 </Network> </User> ``` ZNC -D shows the following: ``` justas@WT02:~/.znc/configs$ znc -D [ .. ] Checking for list of available modules... [ >> ] ok [ .. ] Opening config [/home/justas/.znc/configs/znc.conf]... [ >> ] ok [ .. ] Loading global module [webadmin]... [ >> ] [/usr/lib/znc/webadmin.so] [ .. ] Binding to port [48446]... [ >> ] ok [ ** ] Loading user [zncweb1] [ ** ] Loading network [freenode] [ .. ] Loading network module [simple_away]... [ >> ] [/usr/lib/znc/simple_away.so] [ .. ] Adding server [chat.freenode.net +6697 ]... [ >> ] ok [ .. ] Loading user module [chansaver]... [ >> ] ok [ .. ] Loading user module [controlpanel]... [ >> ] ok [ ** ] Staying open for debugging [pid: 1513] [ ** ] ZNC 1.6.6+deb1ubuntu0.1 - http://znc.in [2019-06-05 17:44:32.482940] Connecting user/network [zncweb1/freenode] [2019-06-05 17:44:32.484645] TDNS: initiating resolving of [chat.freenode.net] and bindhost [] for [IRC::zncweb1::freenode] [2019-06-05 17:44:32.485390] ConnectQueueTimer done [2019-06-05 17:44:32.500198] TDNS: IRC::zncweb1::freenode, connecting to [2001:6b0:e:2a18::119] using bindhost [] [2019-06-05 17:44:32.502971] IRC::zncweb1::freenode == SockError(32 Broken pipe) ``` strace shows something about missing cert (there's indeed no such file, but I'm not sure it has to be there at all) ```` connect(7, {sa_family=AF_INET6, sin6_port=htons(6697), inet_pton(AF_INET6, "2001:708:40:2001::f5ee:d0de", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, 28) = -1 EINPROGRESS (Operation now in progress) getpid() = 1538 time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) gettimeofday({tv_sec=1559746006, tv_usec=715278}, NULL) = 0 getpid() = 1538 time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) gettimeofday({tv_sec=1559746006, tv_usec=717294}, NULL) = 0 getpid() = 1538 time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) gettimeofday({tv_sec=1559746006, tv_usec=721976}, NULL) = 0 openat(AT_FDCWD, "/usr/lib/ssl/cert.pem", O_RDONLY) = -1 ENOENT (No such file or directory) time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) getpid() = 1538 time(NULL) = 1559746006 (2019-06-05T17:46:46+0300) gettimeofday({tv_sec=1559746006, tv_usec=726129}, NULL) = 0 write(7, "\26\3\1\0\351\1\0\0\345\3\3\236_\213\242\24\203\234\215\345\332\vt\2142\241\3R\302\242v\204"..., 238) = -1 EPIPE (Broken pipe) gettimeofday({tv_sec=1559746006, tv_usec=728158}, NULL) = 0 stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1073, ...}) = 0 write(1, "[2019-06-05 17:46:46.728158] IRC"..., 81[2019-06-05 17:46:46.728158] IRC::zncweb1::freenode == SockError(32 Broken pipe) ) = 81 gettimeofday({tv_sec=1559746006, tv_usec=734357}, NULL) = 0 close(7) = 0 poll([{fd=3, events=POLLIN}, {fd=6, events=POLLIN}], 2, 100) = 0 (Timeout) gettimeofday({tv_sec=1559746006, tv_usec=837623}, NULL) = 0 gettimeofday({tv_sec=1559746006, tv_usec=838467}, NULL) = 0 gettimeofday({tv_sec=1559746006, tv_usec=839319}, NULL) = 0 gettimeofday({tv_sec=1559746006, tv_usec=840143}, NULL) = 0 poll([{fd=3, events=POLLIN}, {fd=6, events=POLLIN}], 2, 4998) = 0 (Timeout) ```` Another user on #znc freenode said that it works fine for him on WSL. For me the problem was there even on a different - Debian WSL. <!-- github-sync-id:452545114 -->
adam closed this issue 2026-10-05 04:52:20 +02:00
adam commented 2026-10-05 04:52:21 +02:00
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Issue seems to be solved. Tried today once more, after apt update, connects fine.

Issue seems to be solved. Tried today once more, after apt update, connects fine. <!-- github-comment-id:552363865 -->
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Reference: adam/znc#910