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-   -   freshclam: create_curl_handle: Unable to bind DNS resolves to xxx.xxx.xxx.xxx. Option requires that libcurl was built with c-ares. (https://www.linuxquestions.org/questions/slackware-14/freshclam-create_curl_handle-unable-to-bind-dns-resolves-to-xxx-xxx-xxx-xxx-option-requires-that-libcurl-was-built-with-c-ares-4175693360/)

babydr 04-08-2021 04:57 PM
freshclam: create_curl_handle: Unable to bind DNS resolves to xxx.xxx.xxx.xxx. Option requires that libcurl was built with c-ares.
 
Having just compiled and installed on a MultiInterface server clamav-0.103.2 following the contents (if NOT using the script) of SlackBuilds.org for clamav .
The freshclam.conf.8 manpage says (to me) insert your primary exterior interface ip in the config entry , "LocalIPAddress" , So I did .

When running freshclam (see below(*1)) , curl reports the message saying that libcurl needs c-ares (ie: libc-ares) be complied in , in order to use the "LocalIPAddress" functionality .

Fyi , Leaving "LocalIPAddress" empty allows freshclam to run just fine . As my system is multiInterfaced tho Not multirouted at the moment but will be , Thus my concern .

Tho for those running on true MultiRouted servers are going have a problem when they HAVE to use the "LocalIPAddress" .

How & Who should be contacted to have this library be compiled into curl ?

(*2) Below MAY show that curl is not compiled with libc-ares .
Tho ...
Code:
# nm /usr/lib64/libcurl.so.4.7.0
nm: /usr/lib64/libcurl.so.4.7.0: no symbols"
Code:
(*1)# freshclam
Thu Apr  8 12:57:54 2021 -> *Current working dir is /var/lib/clamav/
Thu Apr  8 12:57:54 2021 -> *Loaded mirrors.dat:
Thu Apr  8 12:57:54 2021 -> *  version:    1
Thu Apr  8 12:57:54 2021 -> *  uuid:      d2f866ca-6562-4830-9b50-ec5820d2d4ff
Thu Apr  8 12:57:54 2021 -> ClamAV update process started at Thu Apr  8 12:57:54 2021
Thu Apr  8 12:57:54 2021 -> *Current working dir is /var/lib/clamav/
Thu Apr  8 12:57:54 2021 -> *Querying current.cvd.clamav.net
Thu Apr  8 12:57:54 2021 -> *TTL: 1254
Thu Apr  8 12:57:54 2021 -> *fc_dns_query_update_info: Software version from DNS: 0.103.2
Thu Apr  8 12:57:54 2021 -> *Current working dir is /var/lib/clamav/
Thu Apr  8 12:57:54 2021 -> ^[LibClamAV] cl_cvdhead: Can't read CVD header in daily.cvd
Thu Apr  8 12:57:54 2021 -> *check_for_new_database_version: No local copy of "daily" database.
Thu Apr  8 12:57:54 2021 -> *query_remote_database_version: daily.cvd version from DNS: 26134
Thu Apr  8 12:57:54 2021 -> daily database available for download (remote version: 26134)
Thu Apr  8 12:57:54 2021 -> *Retrieving https://database.clamav.net/daily.cvd
Thu Apr  8 12:57:54 2021 -> *Local IPv4 address requested: xxx.xxx.xxx.xxx
Thu Apr  8 12:57:54 2021 -> !create_curl_handle: Unable to bind DNS resolves to xxx.xxx.xxx.xxx. Option requires that libcurl was built with c-ares.
Thu Apr  8 12:57:54 2021 -> !downloadFile: Failed to create curl handle.
Thu Apr  8 12:57:54 2021 -> ^Can't download daily.cvd from https://database.clamav.net/daily.cvd
Thu Apr  8 12:57:54 2021 -> !Unexpected error when attempting to update daily: Invalid configuration settings(s)
Thu Apr  8 12:57:54 2021 -> !Database update process failed: Invalid configuration settings(s)
Thu Apr  8 12:57:54 2021 -> !Update failed.
Code:
(*2)# curl --version
curl 7.76.0 (x86_64-pc-linux-gnu) libcurl/7.76.0 OpenSSL/1.1.1k zlib/1.2.11 brotli/1.0.9 zstd/1.4.9 libidn2/2.3.0 libpsl/0.21.1 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.43.0
Release-Date: 2021-03-31
Protocols: dict file ftp ftps gopher gophers http https imap imaps ldap ldaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL TLS-SRP UnixSockets zstd

babydr 04-09-2021 06:32 PM
Hello ALL , Thank You . Whoever picked up my concern and passed it onto the appropriate maintainer :-) .

Code:
Fri Apr  9 20:21:07 UTC 2021
...
n/c-ares-1.17.1-x86_64-1.txz:  Added.
  Adding this since curl can make use of it, and some programs expect this
  functionality.
n/curl-7.76.0-x86_64-2.txz:  Rebuilt.
  Recompiled to link with c-ares-1.17.1. Thanks to babydr.
...
Tnx Agn , JimL

babydr 04-12-2021 05:32 PM
First chance I've had time to test the c-ares library addition with curl .
Thank You all , the Local-Address capability functions well for me .

Code:
# freshclam --local-address=XXX.XXX.XXX.xxx
Mon Apr 12 14:22:06 2021 -> *Current working dir is /var/lib/clamav/
Mon Apr 12 14:22:06 2021 -> *Loaded mirrors.dat:
Mon Apr 12 14:22:06 2021 -> *  version:    1
Mon Apr 12 14:22:06 2021 -> *  uuid:      d2f866ca-6562-4830-9b50-ec5820d2d4ff
Mon Apr 12 14:22:06 2021 -> ClamAV update process started at Mon Apr 12 14:22:06 2021
Mon Apr 12 14:22:06 2021 -> *Current working dir is /var/lib/clamav/
Mon Apr 12 14:22:06 2021 -> *Querying current.cvd.clamav.net
Mon Apr 12 14:22:06 2021 -> *TTL: 199
Mon Apr 12 14:22:06 2021 -> *fc_dns_query_update_info: Software version from DNS: 0.103.2
Mon Apr 12 14:22:06 2021 -> *Current working dir is /var/lib/clamav/
Mon Apr 12 14:22:06 2021 -> *check_for_new_database_version: Local copy of daily found: daily.cvd.
Mon Apr 12 14:22:06 2021 -> *query_remote_database_version: daily.cvd version from DNS: 26138
Mon Apr 12 14:22:06 2021 -> daily database available for update (local version: 26134, remote version: 26138)
Current database is 4 versions behind.
Downloading database patch # 26135...
Mon Apr 12 14:22:09 2021 -> *Retrieving https://database.clamav.net/daily-26135.cdiff
Mon Apr 12 14:22:09 2021 -> *Local IPv4 address requested: XXX.XXX.XXX.xxx
Mon Apr 12 14:22:09 2021 -> *downloadFile: Download source:      https://database.clamav.net/daily-26135.cdiff
Mon Apr 12 14:22:09 2021 -> *downloadFile: Download destination: ./clamav-62c1ded2a09844e3e08f1e78e85f0430.tmp
*  Trying 104.16.218.84:443...
* Connected to database.clamav.net (104.16.218.84) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*  CAfile: none
*  CApath: /etc/ssl/certs
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: C=US; ST=CA; L=San Francisco; O=Cloudflare, Inc.; CN=sni.cloudflaressl.com
*  start date: Aug 15 00:00:00 2020 GMT
*  expire date: Aug 15 12:00:00 2021 GMT
*  subjectAltName: host "database.clamav.net" matched cert's "database.clamav.net"
*  issuer: C=US; O=Cloudflare, Inc.; CN=Cloudflare Inc ECC CA-3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0xc8dab0)
> GET /daily-26135.cdiff HTTP/2
Host: database.clamav.net
user-agent: ClamAV/0.103.2 (OS: linux-gnu, ARCH: x86_64, CPU: x86_64, UUID: d2f866ca-6562-4830-9b50-ec5820d2d4ff)
accept: */*
connection: close

* old SSL session ID is stale, removing
* Connection state changed (MAX_CONCURRENT_STREAMS == 256)!
< HTTP/2 200
< date: Mon, 12 Apr 2021 22:22:09 GMT
< content-type: application/octet-stream
< content-length: 16194
< set-cookie: __cfduid=d9def04df3de02df3584d7393076184ea1618266129; expires=Wed, 12-May-21 22:22:09 GMT; path=/; domain=.clamav.net; HttpOnly; SameSite=Lax
< last-modified: Fri, 09 Apr 2021 11:10:00 GMT
< etag: "60703608-3f42"
< expires: Tue, 12 Apr 2022 22:15:07 GMT
< cache-control: public, max-age=31535578
< cf-cache-status: HIT
< age: 299107
< accept-ranges: bytes
< cf-request-id: 0969c69d99000042a54388f000000001
< expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
< strict-transport-security: max-age=15552000
< x-content-type-options: nosniff
< server: cloudflare
< cf-ray: 63efda0f5cd242a5-LAX
<
Time:    0.1s, ETA:    0.0s [========================>]  15.81KiB/15.81KiB
* Connection #0 to host database.clamav.net left intact
Mon Apr 12 14:22:10 2021 -> *cdiff_apply: Parsed 297 lines and executed 297 commands
Downloading database patch # 26136...
Mon Apr 12 14:22:10 2021 -> *Retrieving https://database.clamav.net/daily-26136.cdiff
Mon Apr 12 14:22:10 2021 -> *Local IPv4 address requested: XXX.XXX.XXX.xxx
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download source:      https://database.clamav.net/daily-26136.cdiff
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download destination: ./clamav-dc372c9d5111e2c1f46a225e4e524b6f.tmp
*  Trying 104.16.218.84:443...
* Connected to database.clamav.net (104.16.218.84) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*  CAfile: none
*  CApath: /etc/ssl/certs
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: C=US; ST=CA; L=San Francisco; O=Cloudflare, Inc.; CN=sni.cloudflaressl.com
*  start date: Aug 15 00:00:00 2020 GMT
*  expire date: Aug 15 12:00:00 2021 GMT
*  subjectAltName: host "database.clamav.net" matched cert's "database.clamav.net"
*  issuer: C=US; O=Cloudflare, Inc.; CN=Cloudflare Inc ECC CA-3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0xcc93f0)
> GET /daily-26136.cdiff HTTP/2
Host: database.clamav.net
user-agent: ClamAV/0.103.2 (OS: linux-gnu, ARCH: x86_64, CPU: x86_64, UUID: d2f866ca-6562-4830-9b50-ec5820d2d4ff)
accept: */*
connection: close

* old SSL session ID is stale, removing
* Connection state changed (MAX_CONCURRENT_STREAMS == 256)!
< HTTP/2 200
< date: Mon, 12 Apr 2021 22:22:10 GMT
< content-type: application/octet-stream
< content-length: 12981
< set-cookie: __cfduid=d7387b5156ec87754a3bac3ff3c40ffda1618266130; expires=Wed, 12-May-21 22:22:10 GMT; path=/; domain=.clamav.net; HttpOnly; SameSite=Lax
< last-modified: Sat, 10 Apr 2021 11:09:00 GMT
< etag: "6071874c-32b5"
< expires: Tue, 12 Apr 2022 22:17:35 GMT
< cache-control: public, max-age=31535725
< cf-cache-status: HIT
< age: 212902
< accept-ranges: bytes
< cf-request-id: 0969c69f0f0000d33e5c140000000001
< expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
< strict-transport-security: max-age=15552000
< x-content-type-options: nosniff
< server: cloudflare
< cf-ray: 63efda11ac1cd33e-LAX
<
Time:    0.1s, ETA:    0.0s [========================>]  12.68KiB/12.68KiB
* Connection #0 to host database.clamav.net left intact
Mon Apr 12 14:22:10 2021 -> *cdiff_apply: Parsed 210 lines and executed 210 commands
Downloading database patch # 26137...
Mon Apr 12 14:22:10 2021 -> *Retrieving https://database.clamav.net/daily-26137.cdiff
Mon Apr 12 14:22:10 2021 -> *Local IPv4 address requested: XXX.XXX.XXX.xxx
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download source:      https://database.clamav.net/daily-26137.cdiff
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download destination: ./clamav-b93d41eccf4ad4267c1c82cbd044ca48.tmp
*  Trying 104.16.219.84:443...
* Connected to database.clamav.net (104.16.219.84) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*  CAfile: none
*  CApath: /etc/ssl/certs
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: C=US; ST=CA; L=San Francisco; O=Cloudflare, Inc.; CN=sni.cloudflaressl.com
*  start date: Aug 15 00:00:00 2020 GMT
*  expire date: Aug 15 12:00:00 2021 GMT
*  subjectAltName: host "database.clamav.net" matched cert's "database.clamav.net"
*  issuer: C=US; O=Cloudflare, Inc.; CN=Cloudflare Inc ECC CA-3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0xca7eb0)
> GET /daily-26137.cdiff HTTP/2
Host: database.clamav.net
user-agent: ClamAV/0.103.2 (OS: linux-gnu, ARCH: x86_64, CPU: x86_64, UUID: d2f866ca-6562-4830-9b50-ec5820d2d4ff)
accept: */*
connection: close

* old SSL session ID is stale, removing
* Connection state changed (MAX_CONCURRENT_STREAMS == 256)!
< HTTP/2 200
< date: Mon, 12 Apr 2021 22:22:10 GMT
< content-type: application/octet-stream
< content-length: 6959
< set-cookie: __cfduid=d2d28e366df467f44aeca0d33c0f68f281618266130; expires=Wed, 12-May-21 22:22:10 GMT; path=/; domain=.clamav.net; HttpOnly; SameSite=Lax
< last-modified: Sun, 11 Apr 2021 11:07:00 GMT
< etag: "6072d854-1b2f"
< expires: Tue, 12 Apr 2022 22:16:09 GMT
< cache-control: public, max-age=31535639
< cf-cache-status: HIT
< age: 126431
< accept-ranges: bytes
< cf-request-id: 0969c6a0040000366d39375000000001
< expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
< strict-transport-security: max-age=15552000
< x-content-type-options: nosniff
< server: cloudflare
< cf-ray: 63efda133837366d-LAX
<
Time:    0.1s, ETA:    0.0s [========================>]    6.80KiB/6.80KiB
* Connection #0 to host database.clamav.net left intact
Mon Apr 12 14:22:10 2021 -> *cdiff_apply: Parsed 54 lines and executed 54 commands
Downloading database patch # 26138...
Mon Apr 12 14:22:10 2021 -> *Retrieving https://database.clamav.net/daily-26138.cdiff
Mon Apr 12 14:22:10 2021 -> *Local IPv4 address requested: XXX.XXX.XXX.xxx
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download source:      https://database.clamav.net/daily-26138.cdiff
Mon Apr 12 14:22:10 2021 -> *downloadFile: Download destination: ./clamav-b4fbfe5c2343c38d49b2858ef9e8330f.tmp
*  Trying 104.16.219.84:443...
* Connected to database.clamav.net (104.16.219.84) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*  CAfile: none
*  CApath: /etc/ssl/certs
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: C=US; ST=CA; L=San Francisco; O=Cloudflare, Inc.; CN=sni.cloudflaressl.com
*  start date: Aug 15 00:00:00 2020 GMT
*  expire date: Aug 15 12:00:00 2021 GMT
*  subjectAltName: host "database.clamav.net" matched cert's "database.clamav.net"
*  issuer: C=US; O=Cloudflare, Inc.; CN=Cloudflare Inc ECC CA-3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0xcc93f0)
> GET /daily-26138.cdiff HTTP/2
Host: database.clamav.net
user-agent: ClamAV/0.103.2 (OS: linux-gnu, ARCH: x86_64, CPU: x86_64, UUID: d2f866ca-6562-4830-9b50-ec5820d2d4ff)
accept: */*
connection: close

* old SSL session ID is stale, removing
* Connection state changed (MAX_CONCURRENT_STREAMS == 256)!
< HTTP/2 200
< date: Mon, 12 Apr 2021 22:22:10 GMT
< content-type: application/octet-stream
< content-length: 16232
< set-cookie: __cfduid=dc03397863a0b8a60878ea8324cdd69771618266130; expires=Wed, 12-May-21 22:22:10 GMT; path=/; domain=.clamav.net; HttpOnly; SameSite=Lax
< last-modified: Mon, 12 Apr 2021 11:05:00 GMT
< etag: "6074295c-3f68"
< expires: Tue, 12 Apr 2022 22:16:53 GMT
< cache-control: public, max-age=31535683
< cf-cache-status: HIT
< age: 40094
< accept-ranges: bytes
< cf-request-id: 0969c6a03a0000058520bbc000000001
< expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
< strict-transport-security: max-age=15552000
< x-content-type-options: nosniff
< server: cloudflare
< cf-ray: 63efda138a4e0585-LAX
<
Time:    0.1s, ETA:    0.0s [========================>]  15.85KiB/15.85KiB
* Connection #0 to host database.clamav.net left intact
Mon Apr 12 14:22:10 2021 -> *cdiff_apply: Parsed 244 lines and executed 244 commands
Mon Apr 12 14:22:11 2021 -> *updatedb: Running g_cb_download_complete callback...
Mon Apr 12 14:22:11 2021 -> *download_complete_callback: Download complete for database : /var/lib/clamav/tmp.4285473c3d/clamav-e92e3c61c0da77cee805fe64c61b2713.tmp-daily.cld
Mon Apr 12 14:22:11 2021 -> *download_complete_callback:  fc_context->bTestDatabases  : 1
Mon Apr 12 14:22:11 2021 -> *download_complete_callback:  fc_context->bBytecodeEnabled : 1
Mon Apr 12 14:22:11 2021 -> Testing database: '/var/lib/clamav/tmp.4285473c3d/clamav-e92e3c61c0da77cee805fe64c61b2713.tmp-daily.cld' ...
Mon Apr 12 14:22:11 2021 -> Database test passed.
Mon Apr 12 14:22:11 2021 -> daily.cld updated (version: 26138, sigs: 3970005, f-level: 63, builder: raynman)
Mon Apr 12 14:22:12 2021 -> *fc_update_database: daily.cld updated.
Mon Apr 12 14:22:12 2021 -> *Current working dir is /var/lib/clamav/
Mon Apr 12 14:22:12 2021 -> *check_for_new_database_version: Local copy of main found: main.cvd.
Mon Apr 12 14:22:12 2021 -> *query_remote_database_version: main.cvd version from DNS: 59
Mon Apr 12 14:22:12 2021 -> main.cvd database is up-to-date (version: 59, sigs: 4564902, f-level: 60, builder: sigmgr)
Mon Apr 12 14:22:12 2021 -> *fc_update_database: main.cvd already up-to-date.
Mon Apr 12 14:22:12 2021 -> *Current working dir is /var/lib/clamav/
Mon Apr 12 14:22:12 2021 -> *check_for_new_database_version: Local copy of bytecode found: bytecode.cvd.
Mon Apr 12 14:22:12 2021 -> *query_remote_database_version: bytecode.cvd version from DNS: 333
Mon Apr 12 14:22:12 2021 -> bytecode.cvd database is up-to-date (version: 333, sigs: 92, f-level: 63, builder: awillia2)
Mon Apr 12 14:22:12 2021 -> *fc_update_database: bytecode.cvd already up-to-date.
Mon Apr 12 14:22:12 2021 -> ^Clamd was NOT notified: Can't connect to clamd through /var/run/clamav/clamd.socket: No such file or directory


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